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Neocaridina research map

A citation tells you where a claim came from. It does not tell you whether the source tested Neocaridina directly, observed a field population, reviewed several species or measured only an aquarium system. This map keeps those differences visible.

Corpus reviewed August 12, 2026. Next scheduled review February 12, 2027. Read the editorial and AI method.

Search every governed knowledge type, compare apparently conflicting evidence without forcing consensus, inspect an answerable design brief for every named gap, see which research is active, waiting or stopped, inspect how community understanding and independent scrutiny will be tested, compare evidence coverage by keeper topic, open the evidence dossier for any detailed guide, inspect the review and full-text maintenance ledger, download the machine-readable knowledge export, inspect its JSON Schema, or import the reviewed sources as CSL-JSON or RIS. Citation exports retain each record's support and limit notes, but abbreviated author text must be checked against the source before a formal bibliography.

Scope: the current public-guide source base is accounted for here: biological and aquarium-system studies receive full claim-scope records, while method, regulatory, professional, database and manufacturer sources are listed separately as supporting authorities. This is not a claim that every relevant paper has been found.

Structured records
148
Supporting authorities
29
Direct Neocaridina
114
Topics
21
Open questions
16
Reproducible gap searches
14

What changed in this evidence review

A current source list cannot show how a claim moved. This public log records meaningful additions, corrections and scope changes. Accepted community corrections enter the same log, with the evidence and affected guides attached.

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Source added August 12, 2026

One season-sensitive character is not a species identification

Changed: The species, anatomy and sexing guidance now includes the complete Neocaridina iriomotensis description and its finding that one walking-leg sex difference was present in summer specimens but absent in winter specimens.

Why: The treatment examined a large deposited series and used combinations of morphology, but all listed material came from one locality and no molecular analysis was included. Nearby intermediate forms remained tentative ecomorphs. A season-sensitive appendage, colour or photograph cannot authenticate a seller line or identify another animal by itself.

Sources: https://doi.org/10.2988/0006-324X(2006)119[25:NIANSO]2.0.CO;2
Affected guides: /care/species, /care/anatomy, /care/sexing

Source added August 12, 2026

Another Neocaridina species is not a colour morph

Changed: The evidence registry and species guide now include the complete description of Neocaridina fonticulata, with its deposited material, diagnostic anatomy, sampled COI evidence and type-locality context kept separate from aquarium trade labels.

Why: The paper diagnoses a distinct species with rostrum, pereiopod and male pleopod characters plus one mitochondrial haplotype from four shrimp. Several characters require an adult male and specialist examination. One locality, one COI haplotype and live-colour photographs cannot identify a seller line, prove reproductive isolation, map a complete range or turn collection-site water values into care targets.

Sources: https://doi.org/10.3897/zookeys.817.29332
Affected guides: /care/species, /care/anatomy, /care/genetics, /care/parameters

Knowledge gap refined August 12, 2026

An extension species profile is not a parameter sheet

Changed: The species guide and supporting-authority registry now include the current UF/IFAS cherry-shrimp profile while explicitly separating its public labels and species overview from aquarium parameter advice.

Why: The official three-page PDF contains no recommended temperature, pH, GH, KH, conductivity, TDS, nitrogen, stocking, tank-size, water-change or feeding values. Its morph-name list has no crossing or genetic evidence, and most printed size, incubation, maturity, molting and cleanup statements do not expose the underlying denominators or conditions. The profile is useful professional orientation, but it cannot support the water-parameter requirements attributed to it by secondary hobby pages.

Sources: https://doi.org/10.32473/edis-in1301-2020
Affected guides: /care/species, /care/parameters, /care/surplus

Claim scope narrowed August 12, 2026

One hundred seventeen Scopus records are not completeness proof

Changed: The literature census now treats the independent 2024 bibliometric paper as a directional comparison instead of implying that its reported total validates completeness.

Why: The open article reports 117 publications from 1952 through 2021, but omits the exact Scopus query, search date, screening flow, excluded records and raw export. Its document types total 107, access categories total 108, topic shares total 93 percent, and China is reported as both 43 and 37 publications. Its citation table also includes works not directly about Neocaridina. The paper can map broad history and collaboration, but it cannot certify either its own corpus or the separate Crossref census as complete.

Sources: https://doi.org/10.54020/seasv5n2-001
Affected guides: /care/species

Knowledge gap refined August 11, 2026

Sixteen microbiome libraries are not six hundred replicates

Changed: The microbiome backlog now records an authenticated diurnal study and its open supplement while keeping abstract-level results out of the evidence registry and care guides.

Why: The abstract reports gut material from 600 shrimp across four clock times, but the open figures show four sample points and four rarefaction curves per time, for 16 visible sequencing samples. Every displayed pairwise alpha-diversity p value ranges from 0.13 to 0.83, so a descriptively higher midnight value is not a supported feeding optimum. Without complete methods, pooling and tank independence are unknown, predicted pathways are not measured digestion, and genus-level 16S detection cannot diagnose infection, virulence or disease.

Sources: https://doi.org/10.1080/09291016.2022.2106711, https://doi.org/10.6084/m9.figshare.20402326
Affected guides: /care/feeding, /care/behaviour, /care/health

Source added August 11, 2026

Time-associated RNA does not identify a best feeding hour

Changed: The feeding, behaviour, molting and temperature evidence boundary now includes a complete diurnal hepatopancreas transcriptome study without turning molecular timing into a care schedule.

Why: The study sampled four sequential times after at least 48 hours without feed, but time changed together with light state, a daily temperature swing and fasting duration. Its ten sequencing libraries were unequal across times, two intended libraries were unexplained, the qRT-PCR denominator conflicts with its figure and only Clk differed significantly among four validation targets. No feeding hour, intake, digestion, growth, molt, reproduction or health outcome was compared.

Sources: https://doi.org/10.2306/scienceasia1513-1874.2024.043, https://www.scienceasia.org/2024.50.n2/scias50_2024043.pdf, https://www.ncbi.nlm.nih.gov/bioproject/PRJNA832034
Affected guides: /care/feeding, /care/behaviour, /care/molting, /care/temperature

Source added August 11, 2026

Three Korean collection dates are not prevalence

Changed: The health and anatomy guides now include a complete Korean Holtodrilus taxonomic record with collection dates, morphology, vouchers and a COI barcode reference.

Why: The paper documents H. truncatus on wild Neocaridina sp. at one stream using material from 2010, 2015 and 2016, but reports no host or worm counts, sampling effort, host identity beyond genus or host-health outcome. Its three NIBR voucher identifiers and GenBank KX683299 make the occurrence checkable without turning it into N. davidi prevalence, continuous persistence, trade origin, harmlessness, diagnosis, quarantine or treatment evidence.

Sources: https://doi.org/10.12651/jsr.2016.5.3.459, https://www.kci.go.kr/kciportal/landing/article.kci?arti_id=ART002159656
Affected guides: /care/health, /care/anatomy, /care/quarantine

Knowledge gap refined August 11, 2026

A suggested uropod imaging site is not a grade standard

Changed: The colour evidence backlog now records a direct 2011 Neocaridina chromatosome paper without promoting its abstract into a grading or husbandry rule.

Why: The accessible abstract identifies three phenotypes, anterior pigmentation and the uropod exopod as a suitable non-invasive monitoring area, but the full methods and results remain access-controlled. Phenotype definitions, denominators, holding conditions, imaging controls, scoring, statistics and effect sizes remain unverified, so one phone photograph cannot be treated as a stable whole-animal grade, genetic test, health reading or colour-care prescription.

Sources: https://doi.org/10.1651/11-3457.1
Affected guides: /care/colours

Source added August 11, 2026

Detached-worm persistence is not a quarantine clock

Changed: The health and quarantine guides now include a complete open study of Holtodrilus body locations, cocoons, host-removed persistence and a small host-exchange demonstration on wild Neocaridina hosts.

Why: The longest host-removed observation was 46 days in source river water without added food, but the containers differed, two worms are missing from the reported ranges, death criteria and controls were omitted and the animals were not identified to N. davidi. Persistence under that laboratory history does not validate a 46-day quarantine, while attachment and predation demonstrations do not establish transmission probability, safe tankmates, treatment efficacy or host harm.

Sources: https://doi.org/10.2478/s11535-013-0184-3, https://d-nb.info/1342669088/34
Affected guides: /care/health, /care/quarantine, /care/anatomy

Source added August 11, 2026

A selected wild brood count is not a colony forecast

Changed: The breeding guide now includes a full-method 2006 field comparison with direct brood counts, sampled egg volumes, reproductive output and monthly gonad measurements for N. denticulata denticulata.

Why: The 43 brood-count females were selected because they were already ovigerous and came from one preserved wild Korean population. A separate cross-sectional ovary comparison supports rematuration during embryo development, but no female was followed through hatch and another spawning. The results cannot predict a captive N. davidi clutch, establish a May aquarium season or promise consecutive broods.

Sources: https://doi.org/10.5657/kfas.2006.39.spc1.198
Affected guides: /care/breeding, /care/sexing

Source added August 11, 2026

A Scutariella identification case is not a fenbendazole protocol

Changed: The health and quarantine boundary now includes an open captive N. davidi case series with live-worm morphology, visible counts and branchial-chamber eggs.

Why: All 15 selected diagnostic shrimp carried morphologically identified S. japonica, but the paper measured no prevalence, transmission, host harm or treatment outcome. Its fenbendazole statement has no dose, exposure, control, efficacy, recurrence or safety data and cannot become a community treatment recipe.

Sources: https://doi.org/10.56385/magyallorv.2023.06.351-358, https://huveta.hu/items/1b0da4b4-de76-4714-bec2-9aeff20c1dd1
Affected guides: /care/health, /care/quarantine, /care/anatomy

Knowledge gap refined August 11, 2026

Three linked pesticide-system studies do not create tank limits

Changed: The chemical-exposure map now records direct N. palmata tebufenpyrad and diflubenzuron articles plus a related Neocaridina thiacloprid preprint as one retrieval cluster.

Why: Only abstracts and indexed publisher text were accessible. The complete allocation, animal denominators, measured-exposure calculations, proxy definitions, analysis and supplements remain unaudited. Their wet-weight and chitobiase NOECs are chemical-specific system-study endpoints, not N. davidi mortality limits, household product rules or interchangeable pesticide thresholds.

Sources: https://doi.org/10.1016/j.chemosphere.2022.135118, https://doi.org/10.1016/j.chemosphere.2022.137567, https://doi.org/10.2139/ssrn.5024510
Affected guides: /care/chemical-safety, /care/molting, /care/growth

Knowledge gap refined August 11, 2026

A 28-day PFAS result is not an aquarium water limit

Changed: The chemical-exposure backlog now includes a previously missing study that reports 28-day PFBA and PFBS mortality comparisons in Neocaridina denticulata.

Why: The indexed tables expose chemical-specific NOEC and acute-to-chronic values, but the complete animal allocation, vessel replication, water chemistry, analytical verification, mortality schedule and statistical method remain unavailable behind human verification. The result expands the chronic-exposure map without creating an N. davidi care threshold or product-safety verdict.

Sources: https://doi.org/10.1016/j.chemosphere.2023.139537
Affected guides: /care/chemical-safety, /care/health

Knowledge gap refined August 11, 2026

One restricted ammonia thesis does not create a safe tank threshold

Changed: The nitrogen gap now records an official 2007 thesis abstract that reports chronic total-ammonia growth and reproductive comparisons in Neocaridina denticulata.

Why: The complete 79-page thesis is restricted. The public record does not expose the chronic duration, vessel replication, animal denominators, water pH and temperature, exposure verification, exact statistical tests or derivation of the abstract-labeled maximum acceptable concentration. The abstract therefore changes the discovery map but cannot validate a care target, intervention trigger or N. davidi threshold.

Sources: https://tdr.lib.ntu.edu.tw/jspui/handle/123456789/30064
Affected guides: /care/nitrogen, /care/health, /care/breeding, /care/growth

Source added August 11, 2026

Lit-dish counts do not establish the best shrimp light

Changed: The habitat and behaviour guides now include an open two-trial Neocaridina light-spectrum thesis while separating its location counts from preference, welfare and long-term lighting advice.

Why: The rotating-lamp trial strengthens the colour-associated signal, but irradiance was not measured or equalized, illumination stayed on the left, the repeated-count model was incompletely specified and coloured lamps could change observer detection of red shrimp. The first trial confounded colour with aquarium, and the stated light period does not overlap the observation hours. No stress, growth, survival comparison or reproductive-rate endpoint was measured.

Sources: https://hdl.handle.net/10400.5/15250
Affected guides: /care/habitat, /care/behaviour

Source added August 11, 2026

Failed molecular clocks do not create a shrimp age test

Changed: The growth and lifespan guide now includes an open doctoral thesis that tested global DNA methylation and mitochondrial point mutations across bounded-age Neocaridina cohorts.

Why: The ELISA comparison depended on recalibrated standards after only 30 of 100 raw readings fell within range. The mitochondrial comparison found no age-group difference across approximately 6 kb after removing one influential animal, while probable nuclear copies affected approximately 9.5 kb. Each sampled age came from one selected cohort tank, the egg samples came from one mother, different animals were sampled at each age and the cited 13-month lifespan was not measured by the thesis.

Sources: https://ueaeprints.uea.ac.uk/id/eprint/79834/
Affected guides: /care/growth, /care/genetics

Knowledge gap refined August 11, 2026

Open nickel data improve denominators without adding dose replication

Changed: The chemical-safety guide now links the two CC BY nickel deposits and distinguishes their numbered samples and quantitative rows from independent replication of the exposure.

Why: The 2024 deposit has three numbered TXRF samples per group but measures whole-shrimp nickel rather than exposure-water concentration. Its reactive-oxygen tables contain uneven rows and repeated dates without independent-animal identifiers. The deposit corresponding to the 2025 article supplies five values per group and organ for mitochondrial potential, ATP and ADP/ATP, but does not link specimens across methods. The two articles remain one research sequence using one high nominal dose scheme.

Sources: https://doi.org/10.1080/24750263.2024.2310041, https://doi.org/10.18150/KEW0KP, https://doi.org/10.1080/24750263.2025.2533312, https://doi.org/10.18150/Z04VGN
Affected guides: /care/chemical-safety, /care/anatomy, /care/health

Source added August 11, 2026

A snail growth comparison is not a safe complete diet

Changed: The feeding guide now includes a 2023 individual-shrimp comparison of pellets, Biomphalaria glabrata mantle and an equal offering while rejecting its conversion into a carcass-feeding or pest-control recipe.

Why: The trial detected no feeding-treatment main effect on mass gain, but it did not measure intake, feed conversion, nutrient composition or food safety and was not an equivalence design. Forty-two starters became 40 analyzed animals despite a 100 percent survival claim, treatment sex counts conflict across sections and one table mean is impossible relative to final mass and the plot.

Sources: https://hdl.handle.net/11449/252406
Affected guides: /care/feeding, /care/growth, /care/health

Knowledge gap refined August 11, 2026

Public peer review adds context, not a larval feeding rule

Changed: The early-development backlog now records the complete public review history for a 2021 Neocaridina midgut study while keeping the paper out of the method-reviewed evidence corpus.

Why: The reviews identify the microscopy and cell-death approaches and say zoea I were non-feeding and lecithotrophic while zoea III were feeding. They also document correction of a duplicated image, cell terminology, labels, table headlines and interpretation. The final article, specimen allocation, independent microscopy units, assay controls, denominators and statistics remain unavailable, so the review record cannot establish a home feeding stage or overturn direct-development descriptions.

Sources: https://doi.org/10.1002/jmor.21281, https://doi.org/10.1002/JMOR.21281/V2/RESPONSE1, https://doi.org/10.1002/JMOR.21281/V1/REVIEW2
Affected guides: /care/anatomy, /care/breeding

Source added August 11, 2026

Cellular recovery is not a re-feeding recipe

Changed: The feeding, anatomy and health guides now include a linked 2019 starvation and re-feeding midgut study while separating tissue-marker changes from a routine fast, mortality threshold, recovery ration, visible diagnosis and health benefit.

Why: The study isolated adults in algae-suppressed 250 mL containers and imported non-starved controls from a 2016 paper. Most 21-day animals reportedly died without a survival analysis, animal counts conflict with the quantitative n, re-feeding ration was omitted and the apoptosis table prints impossible zero means with positive standard deviations.

Sources: https://doi.org/10.1139/cjz-2018-0104
Affected guides: /care/feeding, /care/anatomy, /care/health

Source added August 11, 2026

A bacterial leachate effect is not a shrimp safety verdict

Changed: The chemical-safety and behaviour guides now include a 2021 N. palmata plastic-leachate experiment while separating bacterial luminescence inhibition from a consistent shrimp locomotor effect, particle exposure and household-product safety.

Why: Duplicate 24-hour leachates were pooled, particle-filtered and concentrated before testing. Eight one-shrimp vessels per concentration repeated movement observations across 14 days, but individual variation dominated and the two locomotor endpoints showed no consistent concentration-response. The article did not identify the causal compounds, test N. davidi or measure growth, reproduction, histology or chronic aquarium exposure.

Sources: https://doi.org/10.7717/peerj.12442
Affected guides: /care/chemical-safety, /care/behaviour

Source added August 11, 2026

Recovered particles are not a measured health effect

Changed: The chemical-safety guide now includes a 2021 N. palmata ingestion and four-hour egestion experiment while separating particle recovery from harm, safety, tissue transfer, complete clearance and a shape-only effect.

Why: The study used one independent run with seven to eight surviving one-shrimp vessels per treatment. Immediate and four-hour values came from separate animals with very large variability, and the supplement supplies only group summaries. Beads and fragments differed in polymer, size distribution, preparation and detection, while no chronic survival, growth, reproduction, histology or verified home exposure was measured.

Sources: https://doi.org/10.1007/s11356-021-15068-x
Affected guides: /care/chemical-safety

Claim scope narrowed August 11, 2026

Five SSR markers are not a colour-purity certificate

Changed: The genetics guide now includes a 2020 super red, chocolate and reciprocal-cross marker study while separating marker development in one supplier breeding population from a validated trade-line test.

Why: The complete article and eleven official supplements support five polymorphic SSR loci and reveal eight selected females and males per source strain plus three families per cross group. They do not provide individual genotype data, complete group denominators, family-aware analysis, standardized colour phenotypes, Mendelian segregation or an independent test population. Hybrid frequencies occur in eighths despite a stated 50 offspring per group, and the claimed 0.0018 percent combined misrecognition rate is not derived or tested on held-out animals.

Sources: https://doi.org/10.1007/s10126-020-09979-y
Affected guides: /care/genetics, /care/colours, /care/breeding, /care/species

Knowledge gap refined August 11, 2026

A colour transcriptome is not an inheritance map

Changed: The colour and genetics gap map now includes the 2022 red, blue and chocolate cephalothorax transcriptome and its public nine-run archive without promoting expression differences or mined SSRs into breeding guidance.

Why: The archive confirms three labeled RNA-seq samples per phenotype, but neither it nor the accessible article record states the shrimp count or pooling behind each library, independent tank and family units, or a standardized colour measurement. The study compared phenotype-associated expression. It did not test a named trade line, causal DNA variant, segregation ratio, dominance, cross forecast or validated genetic marker, and complete methods remain unavailable.

Sources: https://doi.org/10.1016/j.gene.2021.145929, https://www.ebi.ac.uk/ena/browser/view/PRJNA382065
Affected guides: /care/colours, /care/genetics

Source added August 11, 2026

Repeated field detections are not a cold-tolerance experiment

Changed: The species, surplus, temperature and breeding boundary now includes the 2018 Polish occurrence study while separating strong identity evidence from establishment certainty, cold tolerance, traced release and aquarium care.

Why: Fifteen field shrimp were collected in 2003, 2013 and 2017, with one ovigerous female and seven field COI accessions. Most effort was qualitative, no winter temperature or sample was reported, the canal received heated power-station water and repeated yearly introductions remained an explicit alternative. A shared COI haplotype with six aquarium animals did not identify a source colony or release event.

Sources: https://doi.org/10.1051/kmae/2018004
Affected guides: /care/species, /care/surplus, /care/temperature, /care/breeding

Correction August 11, 2026

A historical Neocaridina title can describe a Caridina population

Changed: The species, growth, breeding and temperature boundary now excludes the 1985 Lam Tsuen population paper from Neocaridina biological evidence while preserving its original title as a searchable historical record.

Why: The paper was published as Neocaridina serrata, but the complete 1999 taxonomic revision examined Lam Tsuen material and reassigned the population to Caridina cantonensis. It also explained that neither C. cantonensis nor C. serrata belongs in Neocaridina. The older field correlations and inferred annual life history therefore cannot support N. davidi care or breeding calendars.

Sources: https://doi.org/10.1007/bf00032135, https://doi.org/10.1080/002229399299789
Affected guides: /care/species, /care/growth, /care/breeding, /care/temperature

Knowledge gap refined August 11, 2026

Arsenic survival and LC50 values are not safe aquarium limits

Changed: The chemical-exposure backlog now includes two related 1993 and 1994 Neocaridina arsenic food-chain experiments while keeping their abstract-level survival, tolerance, accumulation, excretion and trophic-transfer results out of the evidence corpus until complete methods are reviewed.

Why: One abstract reports four arsenic-species LC50 values; the other says shrimp survived below 2 mg/L arsenate and separates aqueous from dietary arsenic profiles. Both omit essential duration, animal, vessel, replication, measured-exposure, analytical, feeding and statistical units. The related papers share authors and program logic and are not independent laboratory replications. Neither an LC50 nor unspecified survival below a concentration is a safe limit.

Sources: https://doi.org/10.1002/aoc.590070705, https://doi.org/10.1002/aoc.590080407
Affected guides: /care/chemical-safety, /care/feeding, /care/health

Claim scope narrowed August 11, 2026

A model-organism recommendation is not a care standard

Changed: The genetics and husbandry boundary now includes the influential 2015 recommendation to develop Neocaridina as a functional-genomics model while identifying its care numbers and disease-resistance language as secondary synthesis, not new experimental evidence.

Why: The seven-page policy paper arose from a symposium workshop, compared three candidate species and reported no new animals or systematic review method. It explicitly listed a complete genome and reliable gene-control methods as future work, while its pH, temperature, maturity, molt and egg statements came from selected older sources.

Sources: https://doi.org/10.1093/icb/icv050
Affected guides: /care/genetics, /care/breeding, /care/growth, /care/molting, /care/health, /care/parameters

Source added August 11, 2026

A Coxiella-type read is not a probiotic or disease diagnosis

Changed: The breeding, feeding and health boundary now includes the 2015 Neocaridina ovarian-stage microbiota survey while separating a relative 16S profile from bacterial load, prevalence, function and causation.

Why: The study sampled nine females cross-sectionally, three per visually assigned stage, after a two-day fast. Its 27 tissue libraries showed stage-associated gut diversity and a dominant early-stage Coxiella-type OTU, but no microbe was cultured or manipulated and no fertility, hatch, survival, disease or treatment outcome was measured.

Sources: https://doi.org/10.1007/s10126-015-9662-8
Affected guides: /care/breeding, /care/feeding, /care/health, /care/anatomy

Source added August 11, 2026

A hormone-pathway gene is not a molting treatment

Changed: The molting, genetics and breeding evidence boundary now includes the foundational 2015 Neocaridina hormone-pathway gene catalogue while separating sequence identification from demonstrated hormone production, gene function and whole-animal outcomes.

Why: The study searched a fragmented one-animal draft genome, validated selected partial transcripts and displayed a semiquantitative JHAMT gel with three reported individual samples per group. It did not measure hormone or protein concentrations, manipulate a pathway in living shrimp, or measure molt frequency, ecdysis success, growth, survival, fertility or offspring. RNA-animal provenance and several life-stage details were not reported, and the referenced supplementary alignments and primers were unavailable in this review.

Sources: https://doi.org/10.1016/j.ygcen.2014.07.018
Affected guides: /care/molting, /care/genetics, /care/breeding

Claim scope narrowed August 11, 2026

The diclofenac control was not an analytical zero

Changed: The chemical-safety and breeding evidence boundary now reports the measured control concentration, survivor-conditioned later endpoints and the distinction between fewer broods and a statistically significant treatment effect on hatchling count.

Why: The two control checks contained 0.009 and 0.006 mg/L diclofenac, while the nominal 0.1 and 1 mg/L treatments averaged 0.1320 and 1.0730 mg/L. The first egg cohort had partly developed before exposure, later brood samples depended on survival and spawning, and hatchling counts did not differ significantly among treatments. The SSRN and Research Square records are preprint versions of the published study, not independent replication.

Sources: https://doi.org/10.1007/s00244-023-01027-9, https://doi.org/10.2139/ssrn.4214381
Affected guides: /care/chemical-safety, /care/breeding

Knowledge gap refined August 11, 2026

A multi-omics pathway label is not a colour-breeding target

Changed: The colour-genetics gap map and priority queue now include the 2026 crustacyanin RNA-interference and multi-omics study without promoting its abstract-level results into the method-reviewed evidence corpus.

Why: The publisher preview reports 24 family genes, two knockdown targets, compensatory expression and candidate interacting proteins, but not the complete animal, vessel, control, pooling, phenotype or analysis units. It reports no named-line crosses, standardized visible-colour outcome, whole-animal molt result or living-shrimp disease-protection test.

Sources: https://doi.org/10.1016/j.aquaculture.2025.743062
Affected guides: /care/colours, /care/genetics

Claim scope narrowed August 11, 2026

Three colour strains are not trade-line genotypes

Changed: The genetics and colour evidence boundary now preserves the full methods behind the 2026 red, yellow and blue pigment-pathway comparison, including its unresolved animals, pools, tanks, source identities and phenotype measurements.

Why: The study reported three biological samples per endpoint but not the shrimp count or pooling behind them, culture-tank replication or strain allocation. It compared transcripts, normalized western-blot bands and relative fluorescence without gene manipulation, crosses, standardized colorimetry, pigment-compound identification or named-trade-line validation.

Sources: https://doi.org/10.1186/s12864-026-12880-y
Affected guides: /care/colours, /care/genetics

Source added August 11, 2026

An antimicrobial-family name is not disease resistance

Changed: The health guide now includes the 2025 NdCrus1 study while separating recombinant-protein protease and chitin assays from direct bacterial inhibition and outcomes in living shrimp.

Why: The recombinant protein did not significantly inhibit either tested bacterium. It inhibited selected protease preparations and bound chitin materials in vitro, but the study included no living-shrimp bacterial challenge, gene manipulation, survival, pathogen-load, clearance or protection endpoint.

Sources: https://doi.org/10.1016/j.cirep.2025.200226
Affected guides: /care/health

Source added August 11, 2026

One identified shrimp is a record, not a population

Changed: The species and surplus guides now include the first reported Brazilian Neocaridina davidi specimen while separating strong specimen identification from population establishment, marine tolerance and a traced aquarium release.

Why: The study vouchered one 6.52 mm adult female and used morphology plus COI, 16S, 18S and H3 evidence. It did not measure ambient salinity, survival or osmoregulation, resample nearby freshwater, find a second animal, document reproduction or directly test the proposed aquarium-trade introduction route.

Sources: https://doi.org/10.20950/1678-2305/bip.2024.50.e849
Affected guides: /care/species, /care/surplus

Source added August 11, 2026

A lower mixture LC50 is not automatic proof of synergy

Changed: The chemical-safety guide now includes the full 2014 acetaminophen and ibuprofen juvenile-mortality experiment while separating its ratio-specific curves from a formal mixture-interaction model and aquarium guidance.

Why: The unequal series varied one drug while holding the other at 0.5 mg/L, but the reported LC50 labels include only the variable component. The paper used nominal concentrations and called patterns synergistic or antagonistic without a concentration-addition, independent-action, toxicity-unit, model-deviation or isobologram analysis.

Sources: https://doi.org/10.1016/j.etap.2014.04.014
Affected guides: /care/chemical-safety

Source added August 11, 2026

Three altered survivors are not an inheritance chart

Changed: The genetics guide now includes the 2022 Neocaridina embryo-editing experiment while separating a target-gene method result from whole-cohort efficiency, adult outcome, inherited line and commercial-colour claims.

Why: The reported 10 percent was three visibly altered animals among 28 injected embryos that survived to the phenotype screen. The paper did not report the initial injected total, systematically genotype phenotype-normal survivors, follow edited animals to adulthood or test fertility, germline transmission or F1 inheritance.

Sources: https://doi.org/10.1242/jeb.243702
Affected guides: /care/genetics, /care/colours

Source added August 11, 2026

A 99.3 percent core-gene hit rate is not a 99.3 percent complete genome

Changed: The genetics guide now includes the foundational 2014 short-read Neocaridina resource while separating gene detection from whole-genome completeness, commercial-line ancestry, pedigree and consumer testing.

Why: One commercially sourced adult supplied the genomic DNA. The assembly contained 3,346,358 contigs, an N50 of 400 base pairs and 1.284 gigabases against an assumed approximately 3-gigabase genome. The 99.3 percent figure came from recognizable hits for 455 of 458 selected core genes, while the authors described non-coding sequence as poorly recovered.

Sources: https://doi.org/10.3390/md12031419
Affected guides: /care/genetics, /care/species

Source added August 11, 2026

One dietary manganese response curve is not a tank dose

Changed: The feeding and molting guides now include a six-diet manganese experiment while separating its short complete-formulation response from a universal requirement, aquarium-water dose, supplement recipe, incomplete-molt treatment and health claim.

Why: The study used three 50-shrimp tanks per diet for 30 days and reported its highest growth percentages and antioxidant-enzyme activities at 62.69 micrograms per gram of finished feed. The control already contained manganese, all tanks shared recirculating water, biochemical sample-to-tank mapping was unclear and survival, feed conversion, tissue manganese, deficiency signs, molting, reproduction and long-term safety were not reported.

Sources: https://doi.org/10.46989/001c.20585
Affected guides: /care/feeding, /care/molting

Source added August 11, 2026

A background-colour response is not a genetic colour change

Changed: The colour guide now includes a seven-day assigned-environment comparison while separating an RGB response among survivors from inherited colour, commercial grade and camouflage benefit.

Why: Only the blue group produced a significant among-channel difference. The preprint withheld feed for 14 days, reported about 56 percent survival in white, did not report vessel allocation or replication and barcoded only five colony representatives rather than all 64 experimental animals.

Sources: https://doi.org/10.51094/jxiv.1804
Affected guides: /care/colours

Source added August 11, 2026

A cell-death marker is not automatically a shrimp disease

Changed: The anatomy and health guides now include direct adult intestine and hepatopancreas microscopy while separating normal tissue turnover observations from visible diagnosis, pathogen attribution, welfare state and treatment selection.

Why: The study found autophagy, apoptosis and occasional necrosis without assigning an external stressor, but used small method-specific specimen groups, omitted the TUNEL animal denominator, did not report host identification or health screening and printed one impossible 938-of-231 cell count where the displayed percentage implies 93.

Sources: https://doi.org/10.1371/journal.pone.0147582
Affected guides: /care/anatomy, /care/health

Source added August 11, 2026

Five molecular detections do not reveal an introduction route

Changed: The health and surplus guides now include the 2025 La Reunion Island field survey while separating occurrence in three samples from aquarium prevalence, clinical disease, parasite origin, transmission and a traced release event.

Why: The study tested 40 Neocaridina davidi at each of three sites on one date and reported five positives representing four microsporidian sequence types. It reported no histology, lesions, clinical signs, survival, experimental transmission, pathogenicity or treatment endpoint, did not test native shrimp for parasites and contains one inconsistent immature subgroup denominator.

Sources: https://doi.org/10.3391/bir.2025.14.2.08
Affected guides: /care/health, /care/quarantine, /care/surplus

Source added August 11, 2026

Four PCR-positive field shrimp do not create a tank diagnosis

Changed: The health guide now includes the first direct microsporidian field report in Neocaridina davidi and separates its one-site molecular detections from aquarium prevalence, visible diagnosis, disease severity, transmission and treatment.

Why: The study screened 75 ethanol-preserved adults from one German stream and one date using PCR on muscle tissue. Four were positive, but only three randomly selected hosts received CO1 confirmation, only two of three E. hepatopenaei-like sequences entered the phylogeny, and the paper reported no histology, lesions, clinical signs, survival, transmission test or treatment comparison.

Sources: https://doi.org/10.3354/dao03681
Affected guides: /care/health, /care/quarantine, /care/surplus

Source added August 11, 2026

Fourteen days without feed is not a weekly fasting recommendation

Changed: The feeding guide now includes direct adult cellular evidence from a 14-day no-feed experiment and separates oxidative-stress recovery after re-feeding from any claimed husbandry benefit.

Why: The study used isolated 250 mL containers, suppressed algae and removed excrement. ROS-positive cell means rose after 14 days without feed and declined after 7 to 14 days of re-feeding, but the paper did not test a weekly fast, a normal biofilm-rich aquarium, survival, growth, molting, reproduction or a re-feeding schedule. Assay sample mapping is incomplete and MnSOD treatment differences were qualitative.

Sources: https://doi.org/10.7717/peerj.7399
Affected guides: /care/feeding, /care/anatomy, /care/health

Source added August 11, 2026

Ten market barcodes do not certify a trade line

Changed: The species guide now includes a direct ornamental-market CO1 study while separating its ten sampled colour entries from species diagnosis, seller-line ancestry, pedigree, purity and inheritance.

Why: The paper reports 98.24 to 99.29 percent identity to one mitochondrial reference and zero distance among its study entries, but it provides no vouchers or new sequence accessions, leaves seller and aquarium clustering unresolved, shows no band for the blue gel lane and conflicts over sample numbering and phylogenetic models. A short maternally inherited fragment from one market cannot authenticate another stock or a global trade label.

Sources: https://doi.org/10.13057/biodiv/d240714
Affected guides: /care/species, /care/colours, /care/genetics

Source added August 11, 2026

A gene named for hypoxia is not an aquarium oxygen experiment

Changed: The sexing, breeding and filtration guides now include a direct HIF-1alpha embryo knockdown study while separating its molecular and photographed cleavage outcomes from oxygen exposure, embryo prognosis and hatch timing.

Why: The study assigned dsHIF-1alpha and dsEGFP injections but no dissolved-oxygen treatment, and both groups shared one tank. It did not report female, clutch, embryo, affected-embryo or hatch denominators, directly trace dsRNA into offspring or provide a rescue test. One control sequence and three affected examples cannot establish a frequency, oxygen threshold or viability test.

Sources: https://doi.org/10.4194/trjfas25726
Affected guides: /care/sexing, /care/breeding, /care/filtration

Correction August 11, 2026

One life-cycle tank is not a universal 75-day maturity calendar

Changed: A 2013 breeding paper is now structured as bounded descriptive evidence, while its unsupported salinity claim remains excluded from treatment efficacy. The literature census also now counts every documented search decision consistently.

Why: The paper used one breeding tank and one shared cohort of 30 selected healthy offspring, omitted survival and maturity denominators, and conflicts between a graph R squared of 0.3589 and text values of 0.9587 and 0.959. The census correction from 102 matched and 96 unmatched to 105 matched and 93 unmatched recovers three already documented classifications; it does not represent three newly discovered studies.

Sources: https://doi.org/10.3923/ajava.2013.108.115
Affected guides: /care/sexing, /care/growth, /care/breeding, /care/health

Knowledge gap refined August 11, 2026

A hepatopancreas transcriptome is not an AHPND diagnosis

Changed: The screening queue now includes a 2022 injected Vibrio hepatopancreas RNA-seq paper and separates its transcript comparison and AHPND framing from strain virulence, lesions and whole-animal disease outcomes.

Why: The accessible sources report six libraries, 21,464 differentially expressed genes and eight qPCR checks, but do not expose complete challenge units, pooling or sample mapping. They do not establish that the strain carried PirAB toxins or report shrimp survival, clinical signs, bacterial load, clearance or pathology, so the paper stays full text needed and is not counted as an independent replication of the same group's gill experiment.

Sources: https://doi.org/10.1016/j.fsi.2021.10.004
Affected guides: /care/health

Knowledge gap refined August 11, 2026

A gill transcript response is not a Vibrio disease outcome

Changed: The screening queue now includes the 2022 gill RNA-seq paper cited by the later NdLTL1 study and separates its PBS-versus-bacterial transcript comparison from whole-animal disease and protection outcomes.

Why: The publisher exposes six libraries, 1,358 differentially expressed genes and six qPCR checks, but not complete challenge units, dose, route, pooling, sample mapping or whole-animal outcomes. Survival, bacterial load, clearance, transmission and protection remain unreported in the accessible record, so the paper stays full text needed.

Sources: https://doi.org/10.1016/j.fsi.2022.09.049
Affected guides: /care/health

Knowledge gap refined August 11, 2026

Bacterial clumping is not demonstrated disease protection

Changed: The screening queue now includes a 2025 L-type lectin paper and separates shrimp challenge-responsive expression from recombinant-protein binding, bacterial agglutination and whole-animal protection.

Why: The accessible sources report increased gill expression after bacterial exposure and calcium-dependent agglutination by recombinant NdLTL1 in vitro, but do not expose complete challenge units or report shrimp survival, bacterial load, clearance or protection after manipulating the lectin. The paper stays full text needed.

Sources: https://doi.org/10.1016/j.fsi.2025.110116
Affected guides: /care/health

Knowledge gap refined August 11, 2026

Cadmium tolerance in bacteria is not demonstrated shrimp tolerance

Changed: The screening queue now includes a 2024 membrane-bound trehalase paper and identifies which tolerance, transcript and apoptosis outcomes belong to bacteria, shrimp tissue or an unverified whole-animal claim.

Why: The accessible sources describe cadmium-responsive shrimp gill expression, injected gene knockdown, transcriptomics and apoptosis staining, but the reported survival and growth under cadmium came from recombinant Escherichia coli. Complete shrimp exposure units, controls, denominators and whole-animal outcomes remain unavailable, so the paper stays full text needed.

Sources: https://doi.org/10.1016/j.scitotenv.2024.173798
Affected guides: /care/chemical-safety

Source added August 11, 2026

Three copper transcript papers still do not create a copper test

Changed: The chemical-safety guide includes a reviewed 2018 pooled whole-body transcript experiment, while 2021 cephalothorax and 2022 hepatopancreas RNA-seq papers remain in the screening queue until their complete methods are available.

Why: The reviewed study does not report exposure vessels, independent vessel replication or the time-series concentration, pools three animals and contains a freshwater-versus-28-PSU inconsistency. The two later publisher previews expose six libraries each but not enough methods to resolve tank replication, sample mapping, full analysis or whether the same laboratory used independent animal cohorts. None validates a diagnosis, safe concentration, whole-animal outcome or biomarker panel.

Sources: https://doi.org/10.22438/jeb/39/1/PRN-108, https://doi.org/10.1016/j.gene.2020.145098, https://doi.org/10.1016/j.fsi.2021.10.029
Affected guides: /care/chemical-safety

Knowledge gap refined August 11, 2026

The inherited copper LC50 now has a source, not a safe-level claim

Changed: The screening trail now identifies the 2014 acute copper-ion and chlorpyrifos paper that supplied the 96-hour LC50 values reused by the 2015 biomarker study.

Why: The public eight-page PDF confirms the source relationship and broad acute design, but its current text extraction drops the decisive numerical table cells and rendered-page access could not be completed. The source stays full text needed, and its values are not promoted into the evidence registry or aquarium guidance.

Sources: https://www.sciengine.com/doi/pdf/6B7D2EB283AA4B0D8D6C5FDE5D7A1E49, https://doi.org/10.13227/j.hjkx.2015.02.047
Affected guides: /care/chemical-safety

Correction August 11, 2026

Direct copper evidence exists, but it is not a safe aquarium ppm

Changed: The chemical-safety guide now includes a five-day copper and chlorpyrifos biomarker series and a 96-hour imidacloprid-formulation experiment, with their taxon, treatment-unit and endpoint limits exposed.

Why: Earlier wording did not disclose the direct historical-name copper paper. Its wild-source animals were not independently confirmed as N. davidi, exposures were nominal and the study did not estimate a no-effect level. The imidacloprid work apparently used one exposure tank per treatment, so animal-level measurements do not create independent treatment replication or validate acetylcholine as an antidote.

Sources: https://doi.org/10.13227/j.hjkx.2015.02.047, https://doi.org/10.3390/antiox10030391
Affected guides: /care/chemical-safety, /care/behaviour, /care/health

Source added August 11, 2026

Three related pesticide papers are not three replications

Changed: The chemical-safety guide now separates a juvenile acute and biochemical experiment, a male hormone and appendage experiment, and a female hormone and reproductive experiment from the same author group.

Why: The three papers used distinct cohorts and endpoints, but shared nominal concentrations and closely related methods. Beaker-to-assay mapping, solvent controls and repeated pairwise tests limit the hormone results, while the female reproductive comparison used one shared treatment beaker. The sequence cannot supply a precise effect size, visible diagnosis, mechanism or aquarium threshold.

Sources: https://doi.org/10.1080/10915810490435604, https://doi.org/10.1016/j.chemosphere.2004.08.063, https://doi.org/10.1016/j.chemosphere.2005.12.017
Affected guides: /care/chemical-safety

Source added August 11, 2026

One transcript series does not validate a biomarker panel

Changed: The chemical-safety guide now includes a bilingual dipropyl-phthalate study and separates its selected pooled mRNA changes from protein, immune, survival and disease outcomes.

Why: The full article leaves exposure-vessel replication unresolved, pools whole animals, lacks an acetone-matched control and conflicts over transcript direction between its English abstract and main results. It cannot support a consumer-product diagnosis, aquarium threshold or ready biomarker panel.

Sources: https://doi.org/10.12677/IJE.2013.24007, https://doi.org/10.1016/j.fsi.2011.06.021
Affected guides: /care/chemical-safety

Source added August 11, 2026

A changed transcript is not automatically a sick shrimp

Changed: The chemical-safety guide now includes a one-day nonylphenol experiment while separating pooled mRNA responses from protein change, functional impairment and whole-animal harm.

Why: The study reported 14 responsive transcripts, but used nominal exposures and pooled whole-animal RNA without reported independent treatment-vessel replication. It also conflicts over five versus six responsive transcripts at 0.01 mg/L and labels the comparator differently between methods and a figure.

Sources: https://doi.org/10.1007/s00128-011-0338-4
Affected guides: /care/chemical-safety

Source added August 11, 2026

Faster cattail breakdown is not measured leaf intake

Changed: The habitat, feeding and algae guides now include a 140-day litter microcosm that separated direct shrimp contact from fecal contact and litter-only controls.

Why: Direct-contact buckets lost more litter mass, but mass loss combined grazing, microbial-film removal, fragmentation and disturbance. Treatment contrasts estimated the shares rather than measuring intake, and the study did not measure shrimp growth, condition, molting, reproduction or health. Its reporting also leaves taxon-label, animal-holding and destructive-sampling analysis conflicts.

Sources: https://doi.org/10.1007/s10750-018-3573-4
Affected guides: /care/habitat, /care/feeding, /care/algae

Source added August 11, 2026

The highest live-feed mean is not a complete-food recommendation

Changed: The feeding and colour guides now include a 40-day Tubifex, Chironomus, Daphnia and Spirulina-pellet comparison while preserving its aquarium replication and reporting conflicts.

Why: Three aquaria represented each feed, but the study used genus-only stock, unmeasured ad-libitum intake, an unidentified pellet control and conflicting colour scales, significance language and discussion. It cannot establish Tubifex as complete, safest or capable of improving inherited grade.

Sources: https://doi.org/10.21107/juvenil.v6i3.31252
Affected guides: /care/feeding, /care/colours, /care/growth

Knowledge gap refined August 11, 2026

Leaf preference and leaf breakdown are not complete-diet results

Changed: The research map now separates leaf choice, litter decomposition, water chemistry and long-term shrimp outcomes, and adds a direct cattail-decomposition study to the full-text screening queue.

Why: The indexed record exposes a useful contact-versus-feces microcosm design, but complete methods remain unavailable and the study measured one river shrimp population with one cattail litter rather than catappa, alder, dietary adequacy, disease, survival, growth or reproduction.

Sources: https://doi.org/10.1007/s10750-018-3573-4, https://doi.org/10.1163/15685403-00003736
Affected guides: /care/habitat, /care/feeding, /care/algae

Source added August 11, 2026

Less leaf periphyton did not mean cleaner water everywhere

Changed: The algae guide now includes a 119-day mesocosm comparison in which shrimp tanks had lower leaf-periphyton chlorophyll and faster Vallisneria growth, but higher water-column chlorophyll, total nitrogen and total phosphorus.

Why: Four mesocosms per treatment separated shrimp presence from a no-shrimp comparison, but one plant species, one shrimp density, naturally varying temperature and mixed endpoints do not create a named-algae clearance rate, stocking formula, nutrient-export claim or restoration instruction.

Sources: https://doi.org/10.1051/kmae/2019025
Affected guides: /care/algae

Source added August 11, 2026

A yellow-population scarb1 association is not a Sunkist test

Changed: The colour and genetics guides now include the scarb1 split-clutch RNA-interference result and G1593A population association while rejecting use of the SNP to identify a named yellow line.

Why: Only five maternal clutches supplied the functional comparison, later-stage silencing failed and most comparison tests are not named. The table reports 345 of 384 planned genotypes per population without explaining missing calls, and no cross, causation test, individual prediction or independent seller-line validation was run.

Sources: https://doi.org/10.3390/ani15070901
Affected guides: /care/colours, /care/genetics

Claim scope narrowed August 11, 2026

A candidate pigment SNP is not a named-line genetic test

Changed: The colour and genetics guides now include the NdBCO-like4 functional experiment while rejecting use of its one associated SNP to identify Blue Dream, Sunkist, Bloody Mary or another seller line.

Why: The strongest functional comparison used five paired maternal clutches under an artificial removed-embryo protocol. The paper also conflicts over synonymous versus missense wording, wild versus transparent labels and genotype totals, so the association cannot establish causation, dominance, pedigree or a cross forecast.

Sources: https://doi.org/10.3390/fishes10030134
Affected guides: /care/colours, /care/genetics

Knowledge gap refined August 11, 2026

Two aquarium reports did not create a universal maturity clock

Changed: The sexing, growth and breeding guides now explain why the reviewed aquarium reports do not validate adulthood at 75 days, maturity at 12 weeks, a 15-day incubation or a 27 C optimum.

Why: One report began with one tank per market species label and did not expose reproducible offspring or survival denominators. The other began with selected adults and did not document the F1 hatch, starting denominator or age assignment behind its maturity weeks.

Sources: https://doi.org/10.13057/biodiv/d210609, https://doi.org/10.22267/revip.2071.20
Affected guides: /care/sexing, /care/growth, /care/breeding

Claim scope narrowed August 11, 2026

A market-sample percentage is not trade-wide disease prevalence

Changed: The health and quarantine guides retain the reported 156 of 200 organism detections while separating detection from measured harm, disease and treatment need.

Why: The animals came from one seller and shared more than eight aquarium histories. Host and organism confirmation, aquarium clustering, tissue damage, clinical disease and treatment endpoints were not established.

Sources: https://doi.org/10.1051/e3sconf/202560902003
Affected guides: /care/health, /care/quarantine

Claim scope narrowed August 11, 2026

Cold-induced immobility is not a home shipping tip

Changed: The acclimation and transport guidance now presents the four reported target temperatures as an experimental dry-transport comparison, not a home cooling or anaesthesia protocol.

Why: The paper contains conflicting allocation and best-treatment descriptions, no package-temperature trace and no delayed-survival follow-up. Weak response, loss of balance and immobility are experimental endpoints, not normal arrival signs.

Sources: https://doi.org/10.29406/jba.v2i1.1631
Affected guides: /care/acclimation

Claim scope narrowed August 11, 2026

Population counts do not directly measure individual growth or fecundity

Changed: The chemical-safety guide now distinguishes aquarium counts by size class from tracked individual growth, gonad output, egg production and fecundity.

Why: The five-month experiment followed changing colony abundance and life-stage classes. It did not follow individual growth trajectories or directly measure gonads and eggs, so slower reproduction and growth remain interpretations of population patterns.

Sources: https://doi.org/10.1155/are/6618042
Affected guides: /care/chemical-safety, /care/growth

The wider literature census

The evidence registry is method-reviewed. Discovery is deliberately broader. On August 12, 2026, five Crossref searches across current, historical and misspelled taxon names returned 198 unique DOI title matches from 1952 to 2026. At the census snapshot, 144 DOI values already appeared in the evidence source or candidate trail, leaving 54 leads for identity, duplicate and full-method screening.

A lead is not evidence. The 54 unmatched records can include another species, a preprint and published version, a translation, a correction or a narrow endpoint with no home-aquarium use. None enters the structured corpus from its title or abstract alone.

The five result sets were combined, restricted to titles containing Neocaridina or the published Neocardina or Neocaradina spelling variants, and deduplicated by lowercase DOI. DOI values already present in an evidence record, supporting authority, documented search-candidate decision including an exclusion, or priority lead were then classified as matched. A documented exclusion is a screened decision, not supporting evidence.

Exact census queries and limits

Taxon terms: Neocaridina, Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata, Neocardina spelling variant, Neocaradina spelling variant.

Metadata source: Crossref works metadata.

Exact queries

  • query.title=Neocaridina; filter=type:journal-article; rows=1000
  • query.bibliographic="Neocaridina davidi"; filter=type:journal-article; rows=1000
  • query.bibliographic="Neocaridina heteropoda"; filter=type:journal-article; rows=1000
  • query.bibliographic="Neocaridina denticulata"; filter=type:journal-article; rows=1000
  • query.title=Neocaradina; filter=type:journal-article; rows=1000

Limits

  • Crossref metadata can omit studies, contain indexing errors or return duplicate publication versions.
  • A title can name another Neocaridina species, a field population or a molecular endpoint with little direct home-aquarium relevance.
  • The 54 unmatched DOI leads are not 54 verified new studies. Preprints, translations, corrections and duplicate DOI records require screening.
  • No lead enters the evidence registry until its source identity, full methods, experimental unit, endpoints and nearest unsupported claim are reviewed.
  • The priority queue can also preserve a relevant non-DOI source found outside Crossref. Such a record does not change the frozen 198-title DOI census.
  • The August 11 reconciliation corrected the earlier 102-matched and 96-unmatched display. A later record-level rerun found one additional DOI decision already present in a structured search review but omitted during cumulative manual count updates; that bookkeeping correction did not discover or promote a new study.

Independent comparison: Neocaridina davidi (Bouvier, 1904). A bibliometric analysis. The independent 2024 Scopus analysis reported a 117-record corpus from 1952 through 2021 using current and historical names. Its exact Scopus query, search date, screening flow, excluded records and raw export are unavailable, and several published subtotals conflict. It is a directional comparison, not a completeness validation, so 117 and 198 are not interchangeable estimates.

Highest-priority screening queue

95 titles are prioritized for community value and method review: 68 are method reviewed and 27 still need complete accessible text. Their presence here does not endorse their conclusions.

LeadWhy screen itNext action
Transcriptome profiles of the hepatopancreas of the Chinese swamp shrimp (Neocaridina denticulata) under different diurnal rhythms
2024; high priority; method reviewed
Adds a direct hepatopancreas time-series while separating time-associated RNA from a feeding hour, circadian mechanism, temperature effect, molt prediction or health recommendation. Intake complete from the official 18-page article and supplement PDF after extracted-text and every-page visual review. Preserve 3,000 market-sourced animals, a printed mean weight of 1.37 +/- 0.28 g, two weeks in recirculating tap water, a reported 12-hour light and 12-hour dark cycle, a natural daily temperature range of approximately 10 to 18 C, feed withheld for at least 48 hours, and destructive sampling at 06:00, 12:00, 18:00 and 24:00. Preserve 60 hepatopancreases per time intended as three tubes of 20, but only ten RNA-seq libraries distributed 2, 3, 3 and 2 across times with two missing intended libraries unexplained. The written pooling method is unclear. The qRT-PCR methods report three groups per time and five biological replicates per group while the figure shows three points per time; only Clk was significant among Clk, Cry, Per and Tim. Preserve that time co-varied with light state, temperature and fasting duration, and that no constant-temperature, shifted-light, constant-darkness, feeding-time, repeated-cycle or time-randomized control isolated a cause. Differential-expression screening used raw p less than 0.05 without a stated false-discovery correction, and the printed 983 total for 12:00 versus 18:00 conflicts with 588 up plus 350 down, which totals 938. The title and methods use N. denticulata while parts of the results and discussion use N. denticulata sinensis, with no host diagnostic method or voucher. Do not infer a best feeding hour, nocturnal feeding rule, endogenous circadian rhythm, light or temperature cause, fasting schedule, molt prediction, improved digestion, immunity, growth or health from pathway annotations.
Influences of the diurnal cycle on gut microbiota in the Chinese swamp shrimp (Neocaridina denticulata)
2023; high priority; full text needed
Adds a direct four-time gut-microbiota series while separating 16 sequencing samples from 600 source animals, descriptive diversity from a feeding schedule and bacterial genera from disease. The official Taylor and Francis record authenticates this 13-page article, published online 29 July 2022 in the 2023 issue, but the complete article remains access-controlled. Preserve only the abstract-reported scope: gut material from 600 Chinese swamp shrimp was sampled at 06:00, 12:00, 18:00 and 24:00 for 16S sequencing, with descriptive richness and diversity highest at 24:00, predicted digestion and absorption pathways reported as enriched, and Flavobacterium, Acinetobacter and Pseudomonas discussed as opportunistic pathogens. The official CC BY Figshare supplement, https://doi.org/10.6084/m9.figshare.20402326, contains two figures and two workbooks. Figure S1 visibly contains four sample points per time and reports no significant pairwise alpha-diversity comparison: Chao1, Shannon, Simpson and observed-species p values all range from 0.13 to 0.83. Figure S2 shows 16 rarefaction curves, four per time. Sixteen visible sequencing samples are not 600 independent microbial replicates, and a descriptively higher midnight value is not a supported time optimum. The open material does not establish how many guts formed each library, independent tank allocation, feeding schedule, light and temperature history, dissection and extraction controls, absolute bacterial load, beta-diversity model, multiplicity, pathway-prediction method or raw-sequence accession. The two official supplemental workbooks were checksum-verified but not audited because the bundled spreadsheet runtime did not initialize. Full text is required to verify source and taxon identity, tank structure, acclimation, animal-to-library construction, primers and region, sequencing, bioinformatics, controls, statistical unit and functional inference. Do not infer an endogenous circadian rhythm, best feeding hour, nocturnal care rule, measured digestion or absorption, infection, virulence, host disease, probiotic need, medication need or absolute bacterial abundance from the abstract or supplement. This DOI was one of the frozen census unmatched title records and is now a documented abstract-and-supplement decision, not evidence or a guide source.
Neocaridina davidi (Bouvier, 1904). A bibliometric analysis
2024; high priority; method reviewed
Provides an independent Scopus-era map of Neocaridina publishing while showing why database counts require reproducible queries and record-level reconciliation before they can support completeness claims. Method review completed from the official open 25-page journal viewer and the publicly indexed author-uploaded article text, with visual checks of the methods, count, country, citation-table and network pages. Preserve a Scopus corpus described as 117 publications from 1952 through 2021, 328 authors, VOSviewer 1.6.16 analysis, searches of titles and abstracts using current and historical names, and a citation snapshot dated 25 March 2024. Do not call 117 a completeness estimate. The article provides no exact Scopus field query or Boolean syntax, search execution date, language and document-type filters, deduplication procedure, reviewer count, screening flow, excluded-record list, raw CSV, thesaurus file or VOSviewer project. The methods print N. denticulata twice and do not print the full Neocaridina denticulata term shown in the abstract. Published arithmetic is internally inconsistent: document types total 107 rather than 117, access categories total 108, listed topic shares total 93 percent, and China is reported as both 43 and 37 publications in different analyses. Country percentages use an unstated denominator larger than 117, likely because coauthored papers contribute multiple country associations, but that counting rule is not explained. The simplified citation table includes at least two works not directly about Neocaridina, including a 2008 Antonie van Leeuwenhoek paper and the 2018 PeerJ whiteleg-shrimp microbiome paper, despite the stated direct-relevance inclusion rule. The PDF lists six authors while the publisher landing-page metadata and suggested citation list five, omitting Luis Manuel Guevara Chumacero. Use this source only as a directional historical and network comparison. It cannot validate the Crossref census, prove that either database is complete, establish that every record concerns N. davidi, rank evidence quality, measure hobby knowledge or support husbandry claims. This DOI was one of the frozen census unmatched titles and is now a documented method-reviewed bibliometric decision, not a biological evidence record or guide source.
Cherry Shrimp Neocaridina davidi (Bouvier 1904) (Crustacea: Decopoda: Atyidae)
2020; high priority; method reviewed
Audits a prominent peer-reviewed extension profile that hobby sites cite for care advice, preserving its useful species orientation while showing that it contains no aquarium parameter table. Method review completed from the current official three-page UF/IFAS Extension PDF, originally published March 2020 and revised June 2024, after extracted-text review and visual inspection of all pages. Preserve its intended role as a Featured Creatures profile for informed lay and academic audiences; examples of common colour labels; gross external anatomy; direct development; and a secondary overview of introduced records in Poland, Germany, Japan, Israel and Hawaii. The published title prints Decopoda rather than Decapoda. The synonym list contains N. denticulata sinensis and N. heteropoda but is not a complete current taxonomic authority. The trade-name list maps blue dream, blue velvet and blue jelly together and calls rili a striped morph without crosses, pedigrees, genetic tests, seller sampling or stable line definitions. Use those as examples of public labels, not line equivalence or ancestry. The profile contains no recommended aquarium temperature, pH, GH, KH, conductivity, TDS, ammonia, nitrite, nitrate, stocking density, tank size, water-change rate, quarantine period or feeding amount. It reports 3 to 4 cm maximum adult length, 16 to 19 days incubation, 43 to 60 eggs, 1 to 2 mm young and sexual maturity around 30 days, but only the clutch sentence cites Pantaleao et al.; the page does not expose denominators or study conditions for the other values. Its miniature-adult wording hides continued post-hatching morphological development documented in the cited primary source. Claims that shrimp eat molts to reabsorb nutrients and help keep water clean are not tied to a measured nutrient-recovery or aquarium-water endpoint. Its alder and goat-willow preference sentence relies on the Schoolmann and Arndt abstract-level paper whose complete methods remain unavailable in this review. The eight selected references are a secondary trail, not evidence that every profile sentence was independently verified. Use the extension source as professional species and no-release orientation only. Do not infer a parameter target, maturity calendar, incubation countdown, adult-size promise, complete food, cleaning capacity, stable morph taxonomy, genetic purity or safe release. This DOI was one of the frozen census unmatched titles and is now a documented method-reviewed secondary-source decision and bounded supporting authority, not a biological experiment.
Neocaridina fonticulata, a new land-locked freshwater shrimp from Hengchun Peninsula, Taiwan (Decapoda, Caridea, Atyidae)
2019; high priority; method reviewed
Adds a complete genus-level species description that shows why another Neocaridina species is not an aquarium colour morph and why identification may require adult sex-specific anatomy plus molecular comparison. Intake complete from the official CC BY 13-page ZooKeys PDF after extracted-text review and visual inspection of every page. Preserve the holotype, multiple paratype lots, additional Sheding material and comparative N. ikiensis material; rostrum, pereiopod and male first-and-second-pleopod diagnosis; egg measurements from five eggs on each of four ovigerous females; and four Sheding shrimp sequenced for a 658-base-pair mitochondrial COI segment that yielded one reported haplotype, GenBank LC427866. The smallest reported K2P distances were 5.42 percent to sampled N. ketagalan and 5.43 percent to sampled N. saccam. Preserve the source boundary: N. fonticulata was then known only from one locality, and the prediction that it could occur in eastern Taiwan was not a sampled record. The four-shrimp, one-haplotype mitochondrial result has no nuclear locus, cross, genomic ancestry test or blind identification validation. Several diagnostic structures require an adult male and specialist examination. The collection-site values of about 25 C, pH 7.06 to 7.16 and dissolved oxygen 7.33 to 7.70 mg/L lack temporal replication and assigned comparisons; they are habitat context, not aquarium targets, tolerances or optima. Aquarium-held live-colour photographs were not a care trial. Do not identify N. fonticulata or any commercial morph from colour alone, convert COI distance into a universal barcode cutoff, authenticate a seller line, claim reproductive isolation, map the complete range or infer husbandry requirements. This DOI was one of the frozen census unmatched title records and is now a documented method-reviewed taxonomy decision, evidence record and species-guide source.
Neocaridina iriomotensis, a new species of land-locked freshwater shrimp (Crustacea: Decapoda: Atyidae) from Iriomote Island, southern Ryukyus, Japan
2006; high priority; method reviewed
Adds a large morphology-based species description whose seasonal walking-leg difference and unresolved ecomorphs teach why a single visible character, season or photograph cannot establish Neocaridina identity. Intake complete from the Natural History Museum of Los Angeles County hosted seven-page article scan after extracted-text review and visual inspection of every page. Preserve one male holotype, 41 paratypes and 49 non-type specimens from seven collection dates spanning November 1999 through June 2000 at the upper reaches of Nishifunatsuki in the Nakama River. Only specimens above 4 mm carapace length were used for description. Character ratios report varying sample sizes from 73 to 83. Preserve the combination of rostrum, pterygostomian-spine, pereiopod and male pleopod characters used against published N. anhuiensis and topotypic N. ishigakiensis material. The third pereiopod showed sex-associated form in summer specimens but no sexual difference in winter specimens. Egg size was 1.05 to 1.35 by 0.73 to 0.88 mm and the reported clutch range was 21 to 82, but female, clutch and egg denominators were not provided. All listed material came from one named upper-reach locality. The claim that the shrimp was commonly found has no sampling-effort denominator. Proposed headwater ecomorph populations included intermediate rostrum lengths and remained tentative pending molecular and ecological study; this paper conducted no molecular analysis. The habitat description gives channel dimensions, slow flow, vegetation and tree roots but no temperature, pH, hardness, conductivity, dissolved oxygen or nitrogen measurements. Do not identify an aquarium shrimp from colour, one photograph or one season-sensitive appendage; authenticate a seller line; claim genetic separation, reproductive isolation, abundance or complete range; turn the clutch range into a breeding forecast; or infer water targets and care requirements. This DOI was one of the frozen census unmatched title records and is now a documented method-reviewed morphology-taxonomy decision, evidence record and species-guide source.
Chromatosomes in Three Phenotypes of Neocaridina denticulata Kemp, 1918: Morphological and Chromatic Differences Measured Non-Invasively
2011; high priority; full text needed
Could add a direct non-invasive colour-observation method while separating an anatomical imaging site from commercial grade, colour stability and husbandry claims. The official Oxford Academic record authenticates this eight-page 2011 Journal of Crustacean Biology article and exposes its abstract, but labels the article as access-controlled and the direct PDF request returned HTTP 403. Preserve only the abstract-reported scope: three phenotypes of Neocaridina denticulata under 2 cm differed in epidermal chromatosome quantity and dispersal, pigmentation was most pronounced in anterior body parts, and the uropod exopod was proposed as the most suitable area for non-invasive colour monitoring. Full text is required to verify phenotype names, animal source and identity, animal and holding-unit counts, sex, age, size distribution, molt and reproductive state, acclimation, background, light, camera and microscope settings, body regions, repeated observations, chromatosome counting and dispersal scales, calibration, blinding, statistical model, raw denominators, effect sizes and uncertainty. Do not infer a commercial grade, inheritance or genotype, health state, diet effect, preferred background, colour permanence, seller standard or phone-photo diagnostic. A suggested imaging site is not proof that one photograph measures a stable whole-animal phenotype. This DOI was one of the frozen census unmatched title records and is now a documented abstract-only decision.
Microhabitat distribution and behaviour of Branchiobdellidan Holtodrilus truncatus found on the freshwater shrimp Neocaridina spp. from the Sugo River, Japan
2014; high priority; method reviewed
Adds direct wild-host body-location, cocoon, detached-persistence and host-exchange observations while separating them from diagnosis, harm, treatment and quarantine-duration claims. Intake complete from the open six-page German National Library PDF after extracted-text and every-page visual review. Preserve 271 total wild Neocaridina spp. collected across three Sugo River stations from 2003 to 2011; mapped locations on 141 hosts in 2011; 55.3 percent between the first pleopod and fifth pereiopod, 17.0 percent carapace, 15.6 percent eye base, 8.5 percent antennule and 3.6 percent around the egg mass; 23 measured cocoons spanning 0.58 to 0.76 mm; a maximum observed 14 developing worms per cocoon; ten host-removed worms in 100 mL vials surviving 7 to 46 days and three in dishes surviving 12 to 21 days without added food; and all five supplied worms attaching to Neocaridina within three hours in the small host-exchange demonstration. Preserve that hosts were identified only as Neocaridina spp. amid discussed native and imported lineages, the total and mapped denominators are not fully reconciled, station denominators are absent, location-count construction is unclear, two of 15 survival worms are missing from the reported ranges, containers differed, no fed or host-present control and death criterion were stated, and five-worm exchange order, reuse, replication, vessel context and complete 28-host outcomes were omitted. The assertion that infested host eggs hatched healthy young has no denominator or follow-up. Do not turn a maximum 46-day detached-worm observation into a quarantine clock, infer N. davidi prevalence or transmission probability, recommend predator hosts, deliberately deteriorate hosts to collect worms, claim harmlessness or prescribe treatment. This DOI was one of the frozen census unmatched title records and is now a documented decision.
First report of the branchiobdellidan Holtodrilus truncatus (Annelida: Clitellata) found on the freshwater atyid shrimp Neocaridina sp. from Korea
2016; high priority; method reviewed
Adds a vouchered Korean occurrence and the first COI barcode reference for the genus while separating taxonomic detection from prevalence, host harm, trade origin and treatment. Intake complete from the official four-page Korea Citation Index PDF after extracted-text and every-page visual review. Preserve wild Neocaridina sp. material from one Andeok Valley stream dated 23 June 2010, 23 August 2015 and 18 May 2016; immediate 95 percent ethanol preservation; stereomicroscope removal; transparent terete worms under 2 mm; no trunk appendages; a posterior sucker about the head-region diameter; paired jaws with a 7/7 dental formula; three listed NIBR voucher identifiers; and one whole-worm 674-base-pair mitochondrial COI sequence deposited as GenBank KX683299. Preserve that host and worm counts, per-date allocation, sampling effort and absence checks were not reported; the host remained Neocaridina sp. without a stated voucher or molecular identification; only three NIBR identifiers were printed despite additional Inha University deposition; individual images, morphology, sequence and vouchers were not mapped; and the single sequence was not tested by phylogeny or species delimitation. Immediate preservation prevented live or host-response observation. Do not infer prevalence, continuous persistence, geographic range, N. davidi equivalence, native or introduced origin, aquarium-trade transmission, harmlessness, a phone-image diagnosis, quarantine duration or treatment. This DOI was one of the frozen census unmatched title records and is now a documented decision.
Changes in activity rates in the cherry shrimp Neocaridina davidi Bouvier, 1904 (Decapoda: Caridea: Atyidae) in response to concentrations of neuropeptides and glucose
2019; high priority; full text needed
Adds a direct N. davidi movement-response experiment while separating short chemical-exposure activity counts from hunger, stress, welfare and home feeding advice. The official Oxford Academic record authenticates this six-page 2019 Journal of Crustacean Biology article and exposes its abstract, but both available browser sessions report no current article access and the direct PDF endpoint returned only an access-challenge HTML page. Preserve only the abstract-reported 20-minute observations in 4-litre tanks after chemicals were applied directly to the water: MSG increased movement and became more stimulatory over time, glucose increased movement with a declining response over time, dopamine reduced movement, insulin reduced activity, insulin plus glucose showed no effect, dopamine plus glucose increased activity and dopamine plus MSG reduced activity. The abstract also says the MSG response was statistically similar to food-pellet filtrate. A related conference abstract describes groups of ten shrimp and supplies concentrations, but it is not the final article and conflicts with the article abstract wording about observations of shrimp individuals. Full text is required to verify animal source, morph and life stage, acclimation, fasting, tank number and volume, animals per tank, whether shrimp or tanks were reused, independent replication, allocation, water chemistry, treatment preparation and achieved exposure, matched vehicle controls, movement definition and coding, observer blinding, time bins, statistical model, multiplicity, raw denominators, effect sizes and uncertainty. Do not dose MSG, glucose, dopamine, insulin or haloperidol in an aquarium; call activity a direct measure of hunger, food seeking, stress or welfare; infer a feeding amount; or treat a brief pharmacological exposure as ordinary husbandry. This DOI was one of the frozen census unmatched title records and is now a documented abstract-only decision.
Reproductive Biology of Neocaridina denticulata denticulata and Latreutes planirostris
2006; high priority; method reviewed
Adds direct genus-level brood, egg-volume and seasonal gonad measurements while separating selected wild females from aquarium fecundity and repeated-spawning promises. Intake complete from the official five-page KoreaScience image PDF after bilingual OCR and every-page visual review. Preserve one wild Korean N. denticulata denticulata population collected by scoop net during 2001, fixation in 5 percent neutral formalin, selection of ovigerous females, 43 brood-count females measuring 5.69 to 7.85 mm carapace length, 47 to 117 eggs with mean 82 +/- 18, five sampled eggs per female for volume, mean egg volume 0.70 mm3, mean reproductive output 41.84 percent, monthly groups of 48 to 60 females for gonadosomatic index, and separate ovarian regressions for 35 non-eyed-stage and 48 eyed-stage females. Preserve that ovarian dry weight was higher in eyed-stage females at a common carapace-length slope, which supports rematuration during embryo development but not an observed second spawning. The paper does not report a taxonomic key or voucher, exact collection dates or effort, water temperature or chemistry, total female source denominator, annual replication, fertilization, egg retention, hatch, juvenile survival or individual repeated broods. Do not transfer a selected wild-population clutch distribution, May gonadosomatic peak or potential consecutive-spawning inference to captive N. davidi, a temperature target, a seller promise or a home-colony forecast. This DOI was one of the frozen census unmatched title records and is now a documented decision.
Occurrence of Scutariella worms on Neocaridina davidi shrimp (Bouvier, 1904) in Hungary
2023; high priority; method reviewed
Adds a direct captive-shrimp identification case while separating visible worm morphology from prevalence, harm, transmission and an unsupported fenbendazole recipe. Intake complete from the open eight-page University of Veterinary Medicine Budapest repository PDF after extracted-text and every-page visual review. Preserve 15 selected diagnostic submissions from different breeders, seven females and eight males, five shrimp in each of three approximately 18-litre holding aquaria, 2 to 8 visible worms on each shrimp head, antennae or rostral region, reported worm length of 0.8 to 2.0 mm, and eggs visible in the branchial chamber. Morphological identification used live stereomicroscopy and light microscopy with paired anterior projections, two eyespots, internal reproductive structures and a posterior horseshoe- or heart-shaped sucker. Preserve that host identity was not independently tested, source counts and clustering were omitted, the number of worms examined was not stated, and no molecular confirmation or voucher was reported. This was a selected case series without untreated controls or respiration, gill-lesion, molt, mortality, transmission, spontaneous-clearance or treatment endpoints. Harm statements came from cited literature. The one-sentence fenbendazole discussion supplied no product, dose, exposure, efficacy, recurrence or host-safety result. Do not infer prevalence, prove source transmission, identify a distant white shape, prescribe fenbendazole or use treatment response as diagnosis. This DOI was one of the frozen census unmatched title records and is now a documented decision.
Effects of Thiacloprid on Freshwater Systems Dominated by Neocaridina Denticulate and Physa Fontinalis
2024; high priority; full text needed
Adds a direct 28-day neonicotinoid-system lead while keeping a blocked preprint download, an unresolved taxon spelling and abstract-level NOECs out of aquarium limits. Crossref authenticates this as a 2024 SSRN preprint by Jilin Wang and Shao-nan Li, and the SSRN abstract reports one indoor-system application series at nominal 0.3, 0.9, 2.8, 8.3 and 25.0 micrograms/L thiacloprid with Neocaridina denticulate and Physa fontinalis. Preserve only the abstract-reported time-weighted-average wet-weight NOEC and LOEC of 0.72 and 2.7 micrograms/L with effects through 21 days, and antibody-corrected free-living chitobiase NOEC and LOEC of 1.79 and 5.49 micrograms/L with effects through 28 days. The abstract also reports stimulation of water fleas, chlorophyll-a and phycocyanin, suppression of selected bacterial functional groups and increased phosphate and ammonium. The 31-page SSRN manuscript download returned HTTP 403, and no separate peer-reviewed publication or lawful repository copy was located. Full text and supplements are required to verify whether the printed N. denticulate name means N. denticulata, animal source and identification, life stage, vessel and animal counts, independent replication, allocation, controls, nominal-versus-measured exposure series, dissipation and time-weighted-average calculation, water chemistry, feeding, endpoint definitions, antibody validation, statistical tests, multiplicity, raw denominators and uncertainty. Do not use a preprint abstract as a thiacloprid care threshold, infer N. davidi equivalence, interpret stimulation as benefit, or transfer results from the related tebufenpyrad and diflubenzuron systems. Crossref classifies this DOI as posted content rather than a journal article, so it does not change the frozen 198-title journal-article census.
Effects of tebufenpyrad on freshwater systems dominated by Neocaridina palmata, Physa fontinalis, and Ceratophyllum demersum
2022; high priority; full text needed
Adds a direct N. palmata acaricide-system study while separating abstract-level biomass and chitobiase endpoints from mortality, home exposure and N. davidi safety. Crossref, PubMed PMID 35643160 and the official Chemosphere record authenticate this CC BY article. Its abstract reports one application in indoor systems containing Neocaridina palmata, Physa fontinalis, Ceratophyllum demersum, Simocephalus vetulus and Dolerocypris sinensis. Preserve only the abstract-reported time-weighted-average wet-weight NOEC and LOEC of 0.67 and 2.33 micrograms/L with a dose-related effect lasting 21 days, and antibody-corrected free chitobiase NOEC and LOEC of 1.41 and at most 5.64 micrograms/L. The abstract reports plant suppression, stimulation of the cladoceran and ostracod, bacterial-community changes and mixed water-chemistry responses. The publisher PDF and text-mining endpoints rejected automated retrieval, while OpenAlex reports no repository full text and Europe PMC reports no PDF or supplement. Full text and supplements are required to verify shrimp identity and stock, acclimation, animal and vessel counts, replication, allocation, exposure concentrations, analytical recovery and dissipation, time-weighted-average calculation, controls, feeding, endpoint definitions and denominators, antibody correction, statistics, multiplicity and uncertainty. Wet weight and free-living chitobiase are population-production proxies, not direct mortality, individual growth or reproduction measurements. Do not convert either NOEC into an aquarium limit, assume N. palmata equals N. davidi, or transfer the result to another pesticide. This DOI was one of the frozen census unmatched title records and is now a documented decision.
Effects of diflubenzuron on shrimp (Neocaridina palmata) in freshwater systems dominated by submerged plant (Ceratophyllum demersum)
2023; high priority; full text needed
Adds a direct N. palmata insect-growth-regulator study while preventing a sensitive molting-linked proxy from becoming a tank dose or product rule. Crossref and the official open-access Chemosphere record authenticate this CC BY article. The indexed abstract reports nominal diflubenzuron treatments of 0, 0.74, 2.222, 6.667, 20 and 60 micrograms/L in 18 indoor systems divided among six groups, with three systems per group, Neocaridina palmata and Ceratophyllum demersum. Preserve only the reported highest NOEC of 0.167 and LOEC of 0.536 micrograms/L based on chitobiase activity or immunoreactive content, plus the statement that a subcellular LOEC was below 0.107 micrograms/L. Indexed full-page text says measured day-zero concentrations were 9 to 41 percent below nominal and half-lives ranged from 2.8 to 4.0 days. A 2026-08-12 retrieval audit found that ScienceDirect required human verification, the official Elsevier API returned only minimized metadata without authorized full text, Crossref confirmed the CC BY version link, and OpenAlex located no repository full text. The complete article and 3 MB supplementary document were not retrieved. Full text and supplements are required to verify shrimp stock identity, acclimation, animals per system, allocation, independence, measured concentration table, time-weighted-average derivation, controls, feeding, water chemistry, endpoint sampling and denominators, antibody validation, statistical model, comparison pairs, multiplicity and uncertainty. Chitobiase is a molting-linked production proxy, not a direct ecdysis-failure count, mortality threshold or N. davidi care target. Do not infer a safe product concentration, a household contamination trigger or equivalence with the related tebufenpyrad or thiacloprid systems. This DOI was one of the frozen census unmatched title records and is now a documented decision.
Environmental exposure and ecological risk of perfluorinated substances (PFASs) in the Shaying River Basin, China
2023; high priority; full text needed
Adds a previously missing direct 28-day PFBA and PFBS mortality lead while preventing regulatory species-sensitivity values from becoming aquarium water limits. The official Chemosphere record, PubMed PMID 37478992 and EPA HERO record 11412305 authenticate a field-occurrence, eight-species toxicity and aquatic-life-criteria study. Indexed publisher tables report Neocaridina denticulata 28-day mortality NOEC values of 0.420 g/L PFBA and 0.070 g/L PFBS, species mean acute values of 7.866 and 0.713 g/L, and acute-to-chronic ratios of 18.73 and 10.19. These are chemical-specific test results, not measurements of ordinary aquarium exposure. The complete article and supplement remain required to verify shrimp source and identity, size and life stage, acclimation, vessel number and volume, animals per vessel, independent replication, allocation, controls, PFAS salt and purity, concentration series, renewal, analytical verification, water chemistry, feeding, mortality checks and definition, censoring, NOEC test and multiplicity, raw denominators, uncertainty and whether each species test was newly run or imported. ScienceDirect presents human verification and no lawful repository manuscript was located in this access pass. Do not convert the NOECs, species mean acute values, acute-to-chronic ratios, predicted no-effect concentrations or aquatic-life criteria into an N. davidi home threshold, product-safety claim, treatment trigger or permission to expose animals. This title does not contain Neocaridina and therefore expands the priority queue without changing the frozen 198-title DOI census.
Toxic Effects of Ammonia on the Freshwater Shrimp Neocaridina denticulata
2007; high priority; full text needed
Identifies the strongest located chronic ammonia lead while preventing an abstract-level maximum acceptable concentration from becoming an aquarium target or intervention threshold. The official National Taiwan University record identifies a 79-page 2007 Fisheries Science MSc thesis, but its 623.1 KB PDF is restricted and requires authorization. Preserve only what the detailed Chinese abstract reports: acute 24-, 48-, 72- and 96-hour total-ammonia LC50 values of 109.84, 76.60, 53.15 and 37.82 mg N/L for 4.42 +/- 0.28 mm shrimp and 332.95, 266.12, 207.97 and 171.97 mg N/L for 9.22 +/- 0.41 mm shrimp; chronic nominal total-ammonia groups of 0, 0.38, 1.14 and 3.80 mg N/L; poorer growth above 1.14 mg N/L; lower female ovigerous rate, hatchling count and male appendix-masculina index above 1.14 mg N/L; no ovigerous females plus altered feeding and oxygen consumption at 3.80 mg N/L; and an abstract-labeled maximum acceptable concentration of 0.38 to 1.14 mg N/L total ammonia-N and 0.0013 to 0.0038 mg N/L NH3. Full text is required to verify stock identity, taxonomic determination, vessel number and volume, replication, animals per vessel, chronic duration, schedules and endpoint denominators, water pH, temperature and hardness, ammonia preparation and renewal, analytical verification and decay, unionized-ammonia calculation inputs, feed and intake, allocation, mortality and censoring, exact tests, uncertainty and how the maximum acceptable concentration was derived. Do not use the abstract range as a care threshold, assume N. denticulata is interchangeable with aquarium N. davidi, or treat the reported acute values as chronic limits. This non-DOI source expands the priority queue but does not change the frozen 198-title DOI census.
Estudos do comportamento do camarão Neocaridina davidi var red quando exposto a diferentes espetros de luz
2018; high priority; method reviewed
Adds the closest located intact-animal light-colour comparison while preventing a short location-count signal from becoming a red-light recommendation, blue-light warning or welfare claim. Intake complete from the open 102-page University of Lisbon dissertation after extracted-text review and visual inspection of the complete methods, results, discussion, conclusion and statistical appendices. Preserve two trials using 15-shrimp groups in four 15-litre aquaria, left-side illumination over one of two black-stone Petri dishes, counts every five minutes, relative lamp spectra and reported lit-dish means ordered red, green, white and blue. Trial one replaced the groups weekly but kept one colour on each aquarium, completely confounding colour with tank. Trial two rotated lamps every five days across four fixed groups, but lamp sequence, washout, carryover handling, model formula, response family and random effects were not reported. Preserve the abstract-method conflict of n = 120 versus 240 in trial one, the English-abstract typo of n = 6 versus 60 in trial two, and the stated 20:00 to 08:00 light period that does not overlap the stated 09:00 to 19:00 observations. Irradiance or illuminance was neither measured nor equalized, the observer was not reported blind, coloured illumination can alter visibility of red shrimp, and no welfare, growth or reproductive endpoint was tested. Do not recommend red light, warn against blue light, infer colour vision, specify a spectrum or photoperiod, or propose a light trap. This non-DOI repository source expands the queue and evidence corpus but does not change the frozen 198-title DOI census.
Ageing the unageable: investigating novel methods of ageing crustaceans
2020; high priority; method reviewed
Directly tests whether bounded-age aquarium cohorts support molecular age estimation while preventing an assumed lifespan, destructive cross-sectional assay or failed research marker from becoming a consumer age test. Intake complete from the open 214-page University of East Anglia doctoral thesis after extracted-text review and visual inspection of all relevant pages in chapters 2, 4 and 6. Preserve two separate analytical-method studies: a 100-sample global-methylation ELISA comparison at 7, 40, 75 and 120 days after fertilization, and a 151-sample mitochondrial-sequencing study across 7 to 210 days, with 128 empirical samples passing sequencing and mapping quality control and 127 retained after one influential 40-day animal was removed. Preserve 5 to 7 berried mothers per cohort tank, fertilization windows up to eight days, age as a maximum rather than exact value, one selected cohort tank per sampled age, one mother for all egg samples, 50 percent tap plus 50 percent reverse-osmosis water, 22 to 24 C and ad libitum fish wafers. The ELISA conclusion depended on recalibration after only 30 of 100 raw readings fell within the supplied standard curves and before-recalibration inter-plate variation was 61.7 percent. The mitochondrial analysis found no age-group difference across approximately 6 kb after outlier removal, but only 5 of 9 sampled 210-day animals passed quality control, probable nuclear mitochondrial copies affected approximately 9.5 kb and technical replicate counts agreed 71 percent of the time. Do not infer a 13-month lifespan, hatch-to-death survival, exact age from appearance, a commercial age test, oxidative-damage diagnosis, inheritance pattern or named-line marker. The approximate lifespan was cited from another source, not measured. This non-DOI repository source expands the queue and evidence corpus but does not change the frozen 198-title DOI census.
Females weigh more: evaluation of Neocaridina davidi growth and use of the alternative food Biomphalaria glabrata snail
2023; high priority; method reviewed
Directly tests a tempting pest-to-food reuse claim while separating one short growth comparison from nutritional completeness, food safety and responsible snail control. Intake complete from the open 21-page UNESP repository PDF after extracted-text and every-page visual review. Preserve 42 one-week-old juveniles randomized individually across pellet-only, Biomphalaria glabrata mantle-only and equal-offering groups, excess daily feeding, 56 days, 600 mL beakers, Java moss, daily partial water changes and periodic biofilm removal. The analysis detected no feeding-treatment main effect on mass gain, but this was not an equivalence or noninferiority design and intake, leftovers, leaching, feed conversion and snail composition were not measured. Preserve that the snails were raised on the comparator pellet, 42 starters became 40 analyzed shrimp despite reported 100 percent survival, abstract and results swap the snail-only and mixed sex counts, one mixed-female table value is impossible relative to final mass and the plot, and no diet-by-sex interaction, power calculation or raw data was reported. Snail identity and infection status were not verified. Do not infer a complete diet, formulated-feed replacement, safe carcass reuse, humane preparation method, pathogen safety or infestation-control recommendation. This non-DOI repository source expands the queue and evidence corpus but does not change the frozen 198-title DOI census.
Autophagy and apoptosis in starved and re-fed Neocaridina davidi (Crustacea, Malacostraca) midgut
2019; high priority; method reviewed
Adds direct adult midgut evidence while separating tissue responses to prolonged food deprivation from a fasting schedule, survival threshold, re-feeding recipe, visible diagnosis and health benefit. Intake complete from the lawful 39-page university-repository accepted manuscript after extracted-text and every-page visual review. Preserve individually isolated 250 mL containers, algae suppression, daily excrement and exuviae removal, 7-, 14- and 21-day deprivation groups, 4-, 7- and 14-day re-feeding observations, TEM and three confocal methods. Preserve that non-starved controls came from the authors 2016 paper rather than a concurrent group, so this linked research sequence is not independent replication. Most 21-day animals reportedly died without counts, timing or survival analysis, while Table 1 still lists ten TEM specimens for each post-21-day re-feeding row. Table 1 animal counts conflict with n = 5 in Tables 2 and 3, animal-to-cell mapping is unresolved, comparison pairs and multiplicity are unspecified, and Table 3 contains impossible zero means with positive standard deviations for nonnegative percentages. Food amount, frequency and intake during re-feeding were not reported. No supplement or underlying dataset was located. Do not infer a routine fast, safe missed-feeding duration, recovery ration, biofilm adequacy, visible diagnosis, whole-animal recovery or health benefit.
Locomotor behavior of Neocaridina palmata: a study with leachates from UV-weathered microplastics
2021; high priority; method reviewed
Adds direct N. palmata behaviour evidence while separating a bacterial leachate response from particle exposure, a consistent shrimp locomotor effect, overall harm and household-plastic safety. Intake complete from the open 23-page article and official six-page supplementary DOCX. Preserve four separate material-by-weathering experiments, five concentrations, eight one-shrimp vessels per concentration, 14-day repeated observations, particle-filtered extracts and a separate three-run bacterial assay. Preserve that duplicate 24-hour leachates were combined into one 5000-fold concentrated extract per material and weathering condition, so the shrimp vessels did not independently replicate chemical preparation. The source-plastic-equivalent unit is not a measured compound concentration, particle density or aquarium dose. The two locomotor endpoints had high individual variation, few isolated differences and no consistent concentration-response. Do not infer safety, absence of harm, a named chemical culprit, natural-weathering equivalence, N. davidi response or a rule for recycled, biodegradable or household plastics. The sodium-chloride control was lethally high and excluded from the 896-trajectory analysis. The study did not measure growth, reproduction, histology or chronic aquarium exposure. Four official raw XLSX workbooks exist but were not audited in this intake because the required workbook runtime was unavailable.
Postembryonic development and differentiation of the midgut in the freshwater shrimp Neocaridina davidi (Crustacea, Malacostraca, Decapoda) larvae
2021; high priority; full text needed
Could improve the anatomy and early-development map, but the abstract and public peer-review history cannot resolve the final staging definitions, microscopy units, denominators or statistical analysis needed for care guidance. Keep full text needed after checking the official publisher record, PubMed PMID 33074574, institutional pages, scholarly indexes and all six public peer-review artifacts. The reviews authenticate a detailed ultrastructural study comparing zoea I and zoea III with microtomography, light microscopy, transmission electron microscopy, histochemistry, phosphohistone H3 labeling and a TUNEL apoptosis assay. The author response says zoea I were non-feeding and lecithotrophic while zoea III were feeding, but it does not expose the final spawning and hatching definitions, specimen counts, allocation across methods, independent microscopy units, field selection, TUNEL controls, denominators, comparison pairs or statistical results. Reviewers required correction of a duplicated image, R-cell versus E-cell terminology, cell labels, table headlines, histochemical interpretation and apoptosis-versus-necrosis wording. The response also says endocrine-cell identity could not be established because peptide-appropriate histochemistry was not performed. These revisions improve the audit trail but do not substitute for the final 18-page article, supplements or data. Do not use the abstract or reviews to overturn direct-development descriptions, define a home feeding stage, diagnose midgut health, infer probiotic effects, predict molt timing or establish maturity. Retrieve and audit the complete article, supplements and underlying image or measurement data through lawful library access or a corresponding-author request.
Particle shape does not affect ingestion and egestion of microplastics by the freshwater shrimp Neocaridina palmata
2021; high priority; method reviewed
Adds direct particle-ingestion and short egestion observations while separating particle recovery from toxicity, clearance, tissue transfer, shape causation and a household-plastic safety claim. Intake complete from the open nine-page article and official five-page supplementary DOCX. Preserve one independent run, eight one-shrimp 500 mL vessels per treatment, 24-hour exposures, seven to eight surviving replicates, a separate food comparison and separate immediate versus four-hour groups. Preserve that the supplement contains group means and standard deviations rather than animal-level data; its only actual-concentration example delivered 13 plus or minus 3 fragments versus 10 nominal per vessel; immediate and four-hour particle means came from different highly variable animals; bead and fragment shape comparisons also changed polymer, size distribution, suspension preparation and detection; fragments at or below 5 micrometres were omitted; and post-hoc Grubb outlier identities and corrected results were not disclosed. The study supports concentration-associated recovery in rinsed whole-shrimp lysates, recovery of particles in excretions and no detected food effect under this protocol. Do not infer complete clearance, a precise egestion fraction, gut-to-tissue transfer, shape independence, selective feeding, chronic harm, absence of harm, a safe aquarium concentration or that an unnamed household plastic caused exposure. Three deaths in different treatments were not a survival experiment or a demonstrated particle-toxicity mechanism. The purchased White Pearl N. palmata identity was not independently diagnosed, and N. palmata results are not automatically N. davidi results.
First record and DNA barcodes of the aquarium shrimp, Neocaridina davidi, in Central Europe from thermally polluted River Oder canal, Poland
2018; high priority; method reviewed
Adds a strongly identified repeated field occurrence while separating a heated-canal record from cold tolerance, establishment certainty, density, aquarium origin and environmental-impact claims. Intake complete from the full five-page open article and official metadata. Preserve 15 field animals collected qualitatively from submerged vegetation in July 2003, November 2013 and June 2017; only the 2017 sample had a reported one-square-metre area and approximately 15-minute effort. Preserve six amateur-aquarium comparators, 21 morphologically examined animals, one ovigerous field female from 2013, 13 newly generated 610-base-pair COI sequences, seven field and six aquarium accessions, and one shared haplotype across those new sequences. Also preserve the heated 4.5-km canal, reported 27 to 29 C June-July temperature and 15 C November temperature, formaldehyde preservation of the 2003 sample, absence of winter temperature or sampling, and the authors explicit alternative of repeated yearly introductions. Three positive years spanning more than a decade support repeated occurrence and possible persistence, not a measured continuous population, direct observation of reproduction, cold tolerance, winter survival, abundance estimate or release trace. One shared mitochondrial haplotype does not identify the aquarium source, seller, release event, nuclear ancestry or direction of transfer. Do not convert secondary discussion values into a 27 to 28 C breeding optimum, interpret low qualitative catch as density, claim no ecological effect from no detected threat, or treat a thermally polluted canal as evidence that outdoor release is safe.
The population dynamics of some freshwater carideans (Crustacea: Decapoda) in Hong Kong, with special reference to Neocaridina serrata (Atyidae)
1985; high priority; method reviewed
Exposes a historical-name false positive and prevents field correlations, inferred lifespan, maturity timing and clutch results from a Caridina population becoming Neocaridina care rules. Taxonomic screening complete from the official 1985 publisher record and the complete 1999 revision at https://doi.org/10.1080/002229399299789. Dudgeon reported a 15-month Lam Tsuen River field study under the name Neocaridina serrata, but Cai and Ng later examined Lam Tsuen material, including later Dudgeon-collected lots, and identified that population as Caridina cantonensis. They also explained that neither C. cantonensis nor C. serrata belongs in Neocaridina because the diagnostic male first pleopod condition differs. The population article remains subscription-only, so its sampling gear, dates, effort, animal counts, cohort model, exact tests and uncertainty were not audited from complete text. That access gap does not restore Neocaridina relevance after the specimen-based taxonomic revision. Do not transfer its seasonal abundance correlations, above-20-C ovigerous observation, presumed fourteenth molt, approximately 12-month inferred maximum longevity, seventh-month reproduction or clutch-size result to N. davidi, captive aquaria, a temperature optimum or a universal calendar. Keep the original title searchable, classify the census hit as a method-reviewed taxonomic exclusion and cite the later revision when explaining the correction.
De novo assembly transcriptome analysis reveals the genes associated with body color formation in the freshwater ornamental shrimps Neocaridina denticulate sinensis
2022; high priority; full text needed
Adds a public nine-library red, blue and chocolate cephalothorax transcriptome while separating expression associations and mined SSRs from inherited colour genes, named trade lines and breeding forecasts. Complete methods and supplements are still required through a library or author request. PubMed and official Elsevier metadata authenticate the closed article. The publisher abstract and preview report 1.5 to 2 cm adults from one Xiamen supplier; red, blue and chocolate phenotypes selected from forward-cross and backcross progeny and then bred within phenotype for five generations; nine cephalothorax cDNA libraries, three per phenotype; Illumina HiSeq 4000 sequencing; 75,022 assembled unigenes; 829, 554 and 3,194 differentially expressed unigenes in the three pairwise comparisons; and 6,328 mined SSRs. Official ENA project PRJNA382065 independently confirms nine PolyA paired-end runs, sample aliases RD_1 to RD_3, BL_1 to BL_3 and CH_1 to CH_3, adult cephalothorax metadata, a 2018-12-25 collection date and Xiamen location. The archive does not state the shrimp count or pooling behind each library, sex, family and parental contribution, tank allocation or independence, and the accessible article preview does not expose the complete culture conditions, phenotype measurement, RNA sampling, differential-expression thresholds, multiplicity handling, qPCR validation units or supplements. Nine libraries are not automatically nine animals or nine independent tanks. The phenotype labels are not evidence for Blue Dream, Bloody Mary, Sunkist, Chocolate or another named seller line. Pairwise expression differences in mixed cephalothorax tissue do not establish causal DNA variants, dominance, segregation, inheritance, a cross outcome or a breeding target. The 6,328 SSR sequences are mined candidates, not validated polymorphic markers or consumer line tests. Retrieve the complete article and supplements before evidence intake, establish the experimental and family units, and determine whether PRJNA382065 contains any reused 2018 skin libraries outside the nine-study subset before combining datasets.
Identification of Functional SSR Markers in Freshwater Ornamental Shrimps Neocaridina denticulata Using Transcriptome Sequencing
2020; high priority; method reviewed
Adds five transcriptome-derived SSR loci from super red, chocolate and reciprocal-cross breeding material while separating sampled genotype-frequency differences from a universal colour-purity or trade-line test. Intake complete from the full article, official Springer record and all eleven official supplementary files. Preserve one apparent pooled HiSeq 2000 library per young super red and chocolate phenotype, 105,892 assembled unigenes, 25,355 mined SSRs, 26 selected candidates, 16 feasible amplicons and five reported polymorphic loci. Supplementary Figure S4 adds the largest eight females and males from each source strain and three families per pure or reciprocal cross group. Also preserve that the stated 50 offspring per group conflicts with Table 6 hybrid frequencies in exact eighths; no individual genotype data, missing-call denominator, family allocation, standardized colour phenotype, parent-offspring segregation, linkage, independent validation population or family-aware analysis is supplied. The article and supplements do not derive the claimed 4.31 percent single-marker or 0.0018 percent combined-marker misrecognition rates, and no held-out classifier test measured them. One pooled expression library per phenotype is not replicated differential-expression evidence. Treat the five loci as marker-development candidates within the sampled Larmax material, not causal colour genes, a purity certificate, a diversity diagnosis, a named-line genotype, a dominance chart or a cross forecast. Super red in this paper is not evidence for Painted Fire Red, Bloody Mary or any other modern seller label.
Arsenic metabolism in a freshwater food chain: Blue-green alga (Nostoc sp.) to shrimp (Neocaridina denticulata) to carp (Cyprinus carpio)
1993; high priority; full text needed
Could add a second direct Neocaridina arsenate experiment while separating waterborne survival and accumulation from dietary transfer, methylation, nitrogen effects and aquarium safety. Complete methods are required through a library or author request. Crossref publisher metadata and abstract plus the EPA HERO record authenticate a Nostoc to Neocaridina denticulata to carp sequence, survival below reported 1000, 2 and 60 mg As(V) per cubic decimetre for the three organisms, a nitrogen-associated change in Nostoc accumulation, waterborne arsenate accumulation and partial methylation, carp gut distribution, and lower total accumulation with a higher methylated fraction across dietary trophic steps. The accessible abstract distinguishes route-dependent arsenic profiles: monomethylarsenic predominated in carp gut after aqueous accumulation, while food-chain transfer produced no or only trace monomethylarsenic in the three organisms. It does not expose survival duration or definition, animal count, organism source and identity, size or sex, acclimation, vessels, replication, allocation, controls, nitrogen levels, water chemistry, renewal, measured exposure, mortality schedule, tissue and whole-body allocation, feeding duration, food biomass, consumed ration, depuration, extraction, arsenic-speciation recovery, statistics or uncertainty. This is a distinct paper from the 1992 and 1994 food-chain publications but shares authors and program logic, so it is not independent laboratory replication. Do not treat survived below 2 mg/L As(V) as a safe or chronic limit, combine aqueous and dietary routes, equate methylation with detoxification, infer universal biodilution, recommend Nostoc or contaminated biomass as food, or claim that nitrogen addition controls aquarium arsenic. Retrieve all ten pages and any supplement before evidence intake.
Biomethylation and biotransformation of arsenic in a freshwater food chain: Green alga (Chlorella vulgaris) to shrimp (Neocaridina denticulata) to killifish (Oryzias latipes)
1994; high priority; full text needed
Could add direct arsenic-species tolerance, aqueous accumulation, depuration and experimental food-chain evidence while separating LC50, biotransformation and biodilution from aquarium safety claims. Complete methods are required through a library or author request. Crossref publisher metadata and abstract plus the EPA HERO record authenticate naturally collected Neocaridina denticulata, disodium arsenate, methylarsonic acid, dimethylarsinic acid and arsenobetaine comparisons, abstract LC50 values of 1.5, 10, 40 and 150 micrograms As per millilitre, selected aqueous accumulation exposures, transfer to arsenic-free medium, excretion and a Chlorella to shrimp to killifish food-chain sequence. The accessible records do not expose LC50 duration, animal count, source locality, taxon verification, size or sex, acclimation, water chemistry, vessel, replication, allocation, renewal, analytical concentration verification, mortality schedule, concentration-response model, arsenic extraction and speciation recovery, feeding duration, food biomass, consumed ration, depuration duration, excrement collection, controls, statistical units or uncertainty. Do not convert LC50 mortality medians into safe concentrations, treat total arsenic as interchangeable with chemical species, assume methylation means detoxification, infer universal biomagnification or biodilution, use the food-chain result as a feeding recommendation, or claim that transfer to clean water guarantees complete recovery. Retrieve all nine pages and any supplement before evidence intake.
Neocaridina denticulata: A Decapod Crustacean Model for Functional Genomics
2015; high priority; method reviewed
Preserves the historical model-organism recommendation while preventing its secondary pH, temperature, maturity, molt, egg and disease-resistance statements from becoming universal care rules. Review complete from the full seven-page policy paper and official Oxford metadata. Preserve that it arose from a symposium workshop, compared Neocaridina denticulata with two crayfish candidates, reported no new animals or analyses, used no systematic search or risk-of-bias method, and made a recommendation from selected earlier publications. Treat the preliminary genome as incomplete because a complete genome was an explicit next step. Treat proposed transgenesis, reporter expression, mutant screening and targeted gene control as future possibilities at publication, not demonstrated methods. Trace the pH 6.5 to 8.0, temperature up to 30 C, preferred 22 to 25 C and pH 7.0 to 7.5, 15 to 16 day intermolt, 20 to 30 egg, approximately 30 day hatch and 4 to 6 month maturity summaries to their primary sources before reuse. Do not infer a universal care range, breeding clock, stocking density, genome-completeness figure, consumer genetic tool or general resistance to bacterial infection.
Rapid Change of Microbiota Diversity in the Gut but Not the Hepatopancreas During Gonadal Development of the New Shrimp Model Neocaridina denticulata
2015; high priority; method reviewed
Separates an ovarian-stage-associated 16S profile from causation, probiotic benefit, fertility improvement, disease diagnosis and a Coxiella species claim. Intake complete from the full author-uploaded article and official metadata. Preserve nine adult females, three per visually assigned ovarian stage; three linked tissues per female; two days of starvation; 27 individually sequenced libraries; technical PCR triplicates pooled within libraries; 97 percent OTUs; low 0.5 taxonomic confidence; relative read abundance; and public SRA accession SRR1735538. Also preserve the cross-sectional design, unclear stage and egg-carrying boundary, within-female tissue dependence, underspecified t tests, no multiplicity correction or formal beta-diversity group test, no reported contamination controls and no absolute bacterial load, isolate, function, intervention, fertility, hatch, survival or disease outcome. Do not infer that microbes cause ovarian maturation, that changing tank bacteria improves breeding, that the Coxiella-type OTU is a probiotic or pathogen, or that it identifies Coxiella burnetii.
Identification of putative ecdysteroid and juvenile hormone pathway genes in the shrimp Neocaridina denticulata
2015; high priority; method reviewed
Adds a foundational hormone-pathway gene catalogue while separating candidate sequence homology from hormone measurement, demonstrated gene function, molt treatment and breeding intervention. Intake complete from the full author-uploaded article and official publisher, PubMed and institutional metadata. Preserve draft-genome TBLASTN, reciprocal BLASTX, domain and Bayesian phylogenetic checks; selected cloned partial transcripts; public GenBank accessions; and a semiquantitative JHAMT gel with three reported individual samples per group. Also preserve the one-animal draft-genome origin, unspecified RNA-stock identity and culture history, missing sex, age and molt-stage detail, inaccessible supplementary alignments and primers, absent shade hit, no hormone concentration or protein and no live-animal manipulation or outcome. Do not infer a hormone supplement, molt diagnosis, breeding treatment, mineral rule, commercial-line marker or consumer test.
Long-Term Exposure of the Red Cherry Shrimp Neocaridina Davidi to Diclofenac: Impact on Survival, Growth, and Reproductive Potential
2022; high priority; method reviewed
Resolves a high-ranked census lead as a preprint duplicate of the published 2023 diclofenac experiment rather than independent replication or a new evidence record. Duplicate intake complete from the nineteen-page CC BY Research Square preprint and the published article identity. Preserve 22 aquaria per treatment, measured means of 0.0075, 0.1320 and 1.0730 mg/L, the nonzero control, first eggs partly developed before exposure, survivor-conditioned later endpoints, non-significant among-treatment hatchling counts and the small second-spawn abnormality samples. Do not count the SSRN or Research Square posting as an independent experiment, replication, trace threshold, household medication limit or aquarium treatment.
A type I crustin with an inhibitory effect on proteases and strong binding capacity to chitin from Neocaridina denticulata sinensis
2025; high priority; method reviewed
Separates an antimicrobial-peptide family name, tissue expression and recombinant-protein assays from demonstrated disease resistance, shrimp treatment or chitin-supplement benefit. Intake complete from the official Europe PMC full text, all eleven article figures, supplementary text and supplementary figures. Preserve three healthy individuals for the ten-tissue qPCR comparison, unclear ovary and testis sampling allocation, market stock without voucher or diagnostic identity confirmation, commonly reported n = 3 with incomplete biological-versus-technical mapping, no significant inhibition of Bacillus subtilis or Vibrio parahaemolyticus growth, selected in vitro protease inhibition, qualitative chitin and chitosan binding without an unrelated-protein control, and purified-protein 30 to 100 C pretreatment. No living-shrimp bacterial challenge, NdCrus1 manipulation, survival, pathogen-load, clearance or protection outcome was measured. Do not infer disease resistance, diagnosis, treatment, a feed or supplement, a molting aid, or an aquarium temperature rule.
Examining the Adaptive significance of colour change in the freshwater shrimp Neocaridina davidi
2025; high priority; method reviewed
Separates a short background-associated RGB response from inherited colour, commercial grade, health and demonstrated camouflage benefit. Intake complete after official preprint PDF, extracted text and all seventeen rendered-page review. The registry preserves 32 males and 32 females, seven days in white followed by seven assigned days in red, blue, green or white, no feed for all 14 days, survivor-only RGB ratios, a significant among-channel difference only in blue, about 56 percent survival in white, five barcoded colony representatives, unclear vessel allocation and replication, and unreported water chemistry, molt state and mortality timing. Do not convert matching-channel trends into inherited colour, grade enhancement, an optimal substrate, improved health, predator detection or a camouflage survival benefit.
Relationship between ROS production, MnSOD activation and periods of fasting and re-feeding in freshwater shrimp Neocaridina davidi
2019; high priority; method reviewed
Directly tests cell-level oxidative-stress responses after prolonged feed deprivation while showing why a starvation experiment is not a routine weekly-fast recommendation. Intake complete after official full-PDF, extracted-text and all nineteen rendered-page review. The registry preserves one 14-day deprivation followed by 4, 7 or 14 days of re-feeding, individually isolated 250 mL containers, deliberate algae suppression, daily excrement removal, reported ROS-positive cell means, qualitative MnSOD imaging, incomplete mapping between 24 animals and 5 to 6 duplicate assay samples, unreported allocation and blinding, omitted sex and ambiguous comparison-letter reporting. Do not convert cellular oxidative-stress markers into a survival benefit, weekly fasting schedule, missed-feeding danger, proof of adequate biofilm or a re-feeding recipe.
Effects of Dietary Manganese Supplementation on Antioxidant Enzyme Activity in the Shrimp (Neocaridina heteropoda)
2010; high priority; method reviewed
Tests a trace-mineral feed series while separating one formulation-specific growth and enzyme response from a universal dietary requirement, molt supplement or aquarium-water dose. Intake complete after official open-access PDF, extracted text and all eight rendered-page review. The registry preserves 900 wild-collected shrimp, six measured complete-diet manganese concentrations, three 50-shrimp tanks per diet, one shared recirculating-water reservoir, a 30-day duration, the highest reported growth and enzyme values at 62.69 micrograms per gram, a manganese-containing control diet, unclear biochemical sample-to-tank mapping, pooled hemolymph, conflicting water-manganese units, unresolved host identification, sex and life stage, and no reported survival, feed conversion, tissue manganese, deficiency signs, molting, reproduction or long-term safety. Do not convert the response peak into a universal requirement, finished-food supplement recipe, tank-water dose, incomplete-molt treatment or proof of better health.
Genomic Sequence and Experimental Tractability of a New Decapod Shrimp Model, Neocaridina denticulata
2014; high priority; method reviewed
Provides the foundational short-read Neocaridina genomic resource while showing why a core-gene recovery percentage is not whole-genome completeness, line ancestry or a consumer genetic test. Intake complete after official Europe PMC full-text XML and visual review of all eight official figures. The registry preserves one commercially sourced red-patched adult genome donor, 364,013,140 100-base-pair reads, an assumed approximately 3-gigabase genome, 1.284 gigabases assembled into 3,346,358 contigs, a 400-base-pair N50, 455 of 458 CEGMA core-gene hits, a 15,565-base-pair mitogenome, manual removal of three bacterial-like contigs, 3,750 cutoff-dependent Daphnia matches and a separate adult MS-222 method experiment with small duration cells and observed deaths. Do not convert 99.3 percent core-gene detection into 99.3 percent whole-genome completeness, one seller animal into population or named-line genetics, candidate sequence matches into unique function, or the anaesthesia protocol into home treatment, transport, euthanasia or a welfare guarantee.
Microinjection-based CRISPR/Cas9 mutagenesis in the decapoda crustaceans Neocaridina heteropoda and Eriocheir sinensis
2022; high priority; method reviewed
Demonstrates targeted embryo editing while showing why three altered survivors are not ten percent of all injected embryos, a heritable line or a commercial colour assay. Intake complete after publisher-preview full-text review. The registry preserves local-market animals cultured for more than six months, one-cell embryos collected four hours after spawning, a dextran-versus-Phenol-Red tracer pilot, about 0.8 nL injections containing Cas9 at 300 ng/uL and sgRNA at 200 ng/uL, three Nh-scarlet targets, 28 surviving injected embryos at the phenotype screen, two altered-eye-shape survivors, one absent-eye survivor and target-region sequence changes. The initial injected denominator, maternal-clutch contributions, tracer-table denominator and replicate basis, complete negative-control structure and systematic genotyping of phenotype-normal survivors were not reported. Do not convert 3 of 28 survivors into 10 percent of all injected embryos or into adult health, body colour, fertility, germline transmission, F1 inheritance, a stable line, named-trade-line genetics or a consumer test.
Barcoding of ornamental freshwater shrimp, Neocaridina denticulata (De Haan, 1844) from the aquatic ornamental market in Purbalingga, Central Java, Indonesia
2023; high priority; method reviewed
Tests whether several visible market colour labels separated into different CO1 groups while exposing why a barcode result is not a trade-line pedigree or colour-based species key. Intake complete after official full-PDF and eight-page image review. The registry preserves ten market sequence entries, one custom approximately 545-base-pair CO1 assay, 98.24 to 99.29 percent identity to one Chinese mitochondrial reference, reported zero distance among study entries, unknown seller and aquarium clustering, absent morphology and vouchers, missing new sequence accessions, the failed blue gel lane and sample-number mismatch, Jukes-Cantor versus Kimura-model inconsistency, limited branch support and the boundary against global trade-line identity, pedigree, purity, inheritance or identification from colour.
Confirmed by integrative taxonomy first and unusual occurrence of the exotic shrimp Neocaridina davidi (Caridea: Atyidae) in Brazil
2024; high priority; method reviewed
Adds a vouchered morphology-plus-four-locus South American occurrence while separating one specimen from a population, marine tolerance and a traced aquarium release. Intake complete after official SciELO full HTML, publisher PDF, extracted text and all nine rendered pages. The registry preserves one 6.52 mm adult female, one date, one marine coastal site, three incompletely quantified trawls, voucher CCDB 6963, COI, 16S, 18S and H3 work, a COI-only comparative phylogeny, zero reported COI distance to selected Polish and Canadian records, unreported diagnostic morphology states, no ambient salinity or animal-outcome measurements, no nearby freshwater sampling and no evidence of establishment or reproduction. The H3 value is reported as a submission identifier, and a trade release or European source remains a hypothesis. Do not convert one specimen into a Brazilian population, marine tolerance, salinity guidance, introduction route, seller lineage, impact estimate or permission to release aquarium life.
Investigating the Expression and Function of HIF-1alpha in Neocaridina davidi During Embryo Cleavage Stage
2025; high priority; method reviewed
Separates a direct embryo gene-knockdown result from an aquarium hypoxia test, oxygen threshold or hatch countdown. Intake complete after full publisher-PDF and twelve-page image review. The registry preserves the nominal 300-female and 100-male groups, 600 nL dsHIF-1alpha versus dsEGFP injections, one shared-water tank, three-shrimp embryo pools with incomplete replicate mapping, missing female and embryo outcome denominators, three selected affected image sequences, no direct dsRNA tracing, no uninjected or rescue control, paired-test and significance-threshold conflicts, and the mislabeled embryo-stage gene-expression figure. No oxygen treatment was assigned and dissolved oxygen was not measured. Do not convert the HIF name, 27 C culture history, 428-hour control image sequence or photographed arrest into an aeration rule, oxygen limit, hatch calendar, viability test or home intervention.
First report of microsporidians in the non-native shrimp Neocaridina davidi from a temperate European stream
2022; high priority; method reviewed
Adds the earliest direct field detection, host-identification and molecular-sampling boundary for Enterocytozoon hepatopenaei and an unresolved microsporidian isolate in N. davidi. Intake complete after official open-access PDF, extracted-text and all six rendered-page review. The registry preserves one site and date, 75 ethanol-preserved adults, PCR from muscle tissue, host CO1 confirmation in only three randomly selected shrimp, four microsporidian-positive animals, two of three E. hepatopenaei-like sequences suitable for phylogeny, one unresolved isolate, and unreported extraction blanks, PCR negative controls and product lengths. No histology, lesions, clinical signs, survival, transmission or treatment endpoint was reported. Do not convert the four of 75 field result into aquarium or trade prevalence, visible diagnosis, disease severity, growth suppression, pathogenicity, treatment, zoonotic risk, organism origin or proof that the shrimp introduced either organism.
Paradise under threat: the successful invasion of the freshwater shrimp Neocaridina davidi (Bouvier, 1904) and its microsporidian parasites on La Reunion Island
2025; high priority; method reviewed
Adds a second direct field sample that links responsible no-release guidance to measured host and parasite occurrence without inventing prevalence, clinical disease or an introduction route. Intake complete after official repository PDF, extracted text and all eighteen rendered-page review. The registry preserves one date, three sites in two catchments, 40 shrimp per site, five of 120 molecular positives representing four reported sequence types, zero of 40 at one site, one host CO1 haplotype, no epibiont analysis, no native-shrimp parasite test, no histology, lesions, clinical signs, survival, experimental transmission, pathogenicity or treatment endpoint, and a Table 2 conflict that lists 16 immatures while reporting two positives as 2 of 14. Do not convert occurrence into aquarium or trade prevalence, proof of absence, disease severity, parasite origin, a single introduction, seller lineage, movement between catchments, proof that N. davidi introduced an organism or a treatment.
Cell Death in the Epithelia of the Intestine and Hepatopancreas in Neocaridina heteropoda (Crustacea, Malacostraca)
2016; high priority; method reviewed
Provides a direct adult tissue baseline showing why autophagy, apoptosis, necrosis and mitochondrial markers require method and comparison context before anyone calls them disease or treatment targets. Intake complete after official open-access PDF, extracted text and all twenty rendered-page review. The registry preserves no assigned external stressor, local-breeder adults maintained at 24 C, pH 7 and 15 degrees German hardness, method-specific specimen groups, only three adults behind quantitative autophagy and necrosis cell counts, an unstated TUNEL animal denominator, an arbitrary fluorescence threshold, no host-identification or health-screening method, no sex-stratified results, and a Table 1 row that prints 938 autophagic cells from 231 total where 40.26 percent implies 93. Do not convert cellular turnover into a visible diagnosis, pathogen, cause of colony decline, healthy baseline percentage, welfare state, treatment target, aquarium optimum or safe exposure.
Omnivorous shrimp Neocaridina denticulata sinensis enhances the growth of submerged macrophyte Vallisneria denseserrulata
2019; high priority; method reviewed
Directly separates a measured reduction in leaf periphyton from plant growth, water-column algae, nutrients and physical export. Intake complete after full PDF and page-image review. The registry preserves four mesocosms per treatment, eight shrimp per 75-litre tank, one plant species, 119 days, naturally varying 17 to 30 C water, repeated leaf removal, no pheophytin correction, a water-column chlorophyll unit conflict and the boundary against an aquarium cleaning rate, stocking formula or release-based restoration advice.
Freshwater shrimp (Neocaridina denticulata) as a nature-based restoration tool for macrophyte recovery and improved water quality in eutrophic ponds
2025; high priority; full text needed
Could test filamentous-algae consumption, macrophyte recovery and water-quality outcomes across feeding trials, microcosms and field evaluation while defining the boundary against aquarium cleanup and animal introduction. Full methods still needed. The official publisher abstract reports feeding trials, controlled microcosms, long-term field evaluation, reduced filamentous algae, improved clarity, an 11-fold macrophyte-abundance result and a self-sustaining shrimp population. The publisher page and official metadata do not expose animal and vessel counts, treatment allocation, controls, shrimp density, endpoint definitions, intervention timing, field comparators, replication, analysis units or the numerical water-quality results here. OpenAlex reports no repository full text or PDF. Do not convert the abstract into a home algae list, stocking rate, water-quality promise or instruction to introduce or release shrimp. Retrieve the article and supplements through the publisher, a library or the corresponding author.
Development and testing of a sedation protocol for Neocaridina davidi
2024; high priority; method reviewed
Could improve humane imaging, measurement and specimen handling while defining a clear research-only boundary. Intake complete. The registry now preserves missing vehicle control, short recovery follow-up and the boundary against home use.
Post-embryonic tail development through molting of the freshwater shrimp Neocaridina denticulata
2025; high priority; method reviewed
Clarifies the first-molt tail transition and separates developmental anatomy from a home molt clock or visible diagnosis. Intake complete. The registry preserves method-specific sample sizes, probable microscope-temperature acceleration, invasive live imaging, possible injury artifacts and the boundary against adult timing or mineral advice.
Ectoparasites in Ornamental Shrimps Neocaridina denticulata and Neocaridina palmata from Purbalingga Fish Market Aquariums
2025; high priority; method reviewed
Turns a dramatic market-sample percentage into a practical lesson about clustered sampling, organism identification and the difference between detection and measured disease. Intake complete. The registry preserves the one-seller sampling frame, shared aquarium history, missing host and organism confirmation, unreported tank clustering and the absence of any measured harm or treatment endpoint.
Experimental measurement of enzyme activity during initial crustacean growth using the ornamental shrimp, Neocaridina denticulata, as a model and changes in activity with growth
2025; high priority; method reviewed
Adds known-age size observations while showing why one pooled rearing tank and whole-body enzyme pools cannot define adulthood, cold tolerance or a stage-specific diet. Intake complete. The registry preserves destructive cross-sectional sampling, the shared tank, unknown survival denominator, unassigned temperature, whole-body pooling, incomplete statistical reporting and unclear 75-day adult identity.
Comparative transcriptomic analysis primarily explores the molecular mechanism of compound eye formation in Neocaridina denticulata sinensis
2024; high priority; method reviewed
Separates visible embryo eye stages from a universal hatch countdown, viability claim or reason to alter the aquarium. Intake complete. The registry preserves three roughly 50-embryo pools per stage, unknown female and brood contributions, missing incubation and time-to-hatch data, whole-embryo expression associations and the absence of functional or hatching endpoints.
The occurrence process of chromatophores in three body color strains of the ornamental shrimp Neocaridina denticulata sinensis
2022; high priority; method reviewed
Shows when pigment-cell types first appeared in three laboratory strains while separating microscopy stages from a universal juvenile grading clock. Intake complete. The registry preserves six-individual observations, one tank per strain, unknown family contributions, in-vitro egg culture, incomplete statistical reporting and the boundaries against diet, inheritance, named-line and adult-grade claims.
Genome-wide identification of the crustacyanin gene family in Neocaridina denticulata sinensis based on comparative genomics and localization analysis
2025; high priority; method reviewed
Explains what a pigment-binding protein family map can reveal while preventing gene count from becoming a trade-line inheritance chart, grading claim or colour-food recommendation. Intake complete. The registry preserves one unpublished source genome, 15 tissue libraries with unresolved animal-versus-pool provenance, undefined qPCR biological units, antibody cross-recognition, missing colour phenotypes and the boundary against assigning individual-gene functions or commercial-line traits.
Enhancing Histological Techniques for Small Crustaceans: Evaluation of Fixation, Decalcification, and Enzymatic Digestion in Neocaridina Shrimp
2025; high priority; method reviewed
Shows why post-mortem preparation can change tissue appearance and why a laboratory slide or deceased specimen image is not automatically evidence of disease. Intake complete. The registry preserves five animals per processing variant, specimen-level subsampling, subjective unblinded scoring, one breeder line without species identification, laboratory chemical hazards and the boundary against live-health, treatment or home euthanasia claims.
Annoying noise: effect of anthropogenic underwater noise on the movement and feeding performance in the red cherry shrimp, Neocaridina davidi
2023; high priority; method reviewed
Directly addresses vibration and noise questions that hobbyists often infer from short behaviour observations. Intake complete. The registry now preserves the single-tank design, unmeasured particle motion and equipment-transfer limits.
Impacts of sublethal concentrations of 17 alpha-ethinylestradiol on growth, reproductive performance and survival in red cherry shrimp during consecutive spawnings
2023; high priority; method reviewed
Provides long reproductive endpoints for a defined water contaminant and may improve chemical-exposure claim boundaries. Intake complete. The registry preserves nominal-only exposure, the unmatched solvent control, conflicting ethanol reporting, low control survival, artificial egg incubation and the boundary against a beneficial low dose.
Long-Term Exposure of the Red Cherry Shrimp Neocaridina davidi to Diclofenac: Impact on Survival, Growth, and Reproductive Potential
2023; high priority; method reviewed
May add a long-duration direct toxicant design with survival, growth and reproductive endpoints. Intake complete. The registry preserves aquarium replication, measured concentrations, endpoint denominators and the boundary against a household threshold.
The lifecycle of Neocaridina denticulata and N. palmata in aquariums
2020; high priority; method reviewed
Tests a widely repeated 75-day maturity claim against the source tanks, offspring denominators, life-stage language and water-measurement record. Intake complete. The registry preserves one initial aquarium per market label, unclear female and offspring units, absent survival denominators, inconsistent dates, tables and figures, and the boundary against a 75-day maturity calendar, 27 C optimum or water-quality threshold.
Breeding and Life Cycle of Neocaridina denticulata sinensis (Kemp, 1918)
2013; high priority; method reviewed
Adds direct breeding and known-cohort observations while showing why one selected shared cohort cannot create a universal maturity calendar or salt-treatment protocol. Intake complete after official full-HTML, repository-PDF and page-image review. The registry preserves one breeding tank, one shared 30-offspring life-cycle tank, selection of only healthy one-week-old offspring, missing survival and maturity denominators, unexplained extra points in the brood-mass graph, its 0.3589 figure versus 0.9587 and 0.959 text conflict, and the absence of an assigned salinity treatment, untreated control, dose-duration, host-safety endpoint or recurrence follow-up. Do not convert the observed 15-day incubation, 75-day maturity, 27 C water, 40 percent protein feed or 5 to 10 ppt salinity claim into a universal calendar, optimum, feeding recipe or treatment.
Estimation of the size of sexual maturity in reproducers of Neocaridina heteropoda under laboratory conditions
2020; high priority; method reviewed
Shows why selected adult broodstock and an incompletely documented F1 cannot validate a universal age or size of sexual maturity. Intake complete. The registry preserves six nominal 2-litre aquaria, selected adults, undefined F1 hatch and age assignment, conflicting maturity-week summaries, incomplete egg and water reporting, mortality-driven density changes and statistical inconsistencies.
Functional Analysis of NdBCO-like4 Gene in Pigmentation of Neocaridina denticulata sinensis
2025; high priority; method reviewed
Adds a direct functional pigment-gene experiment while testing whether one associated SNP can identify commercial colour lines or predict crosses. Intake complete. The registry preserves the five paired maternal RNA-interference units, artificial removed-embryo exposure, unknown culture-tank replication, contradictory significance and SNP descriptions, unreconciled genotype totals, wild-versus-transparent label switch and the boundary against a named-line genetic test.
Role Analysis of the scarb1 Gene in the Pigmentation of Neocaridina denticulata sinensis
2025; high priority; method reviewed
Tests a carotenoid-transport candidate and a yellow-population SNP while showing why a strong sampled association is not a consumer test for Sunkist or another named line. Intake complete after full XML review. The registry preserves five maternal split-clutch RNAi units, failed later-stage silencing, unreported statistical methods for most comparisons, 345 reported of 384 planned genotypes per population and the absence of crosses, causation, independent-line validation or individual prediction.
Identification of a new ABCB6 gene correlated with economic trait for pigmentation of cherry shrimp (Neocaridina denticulata)
2026; high priority; full text needed
Could add another functional pigment-transport candidate while testing whether an economic-trait title is being overextended into commercial-line genetics. Full methods still needed. The publisher abstract reports red, yellow, blue and wild laboratory strains, expression profiling, in situ hybridization and RNA interference, but accessible records do not expose animal and maternal units, strain and tank replication, controls, allocation, phenotype scoring, analysis units or full statistical methods. Do not convert the abstract into a named-line marker, inheritance model, colour-food claim or breeding test. Retrieve the article and supplements through a library or corresponding-author request.
Crustacyanins as regulators of functional complementation, cuticle development, lipid metabolism, pigmentation, and immunity in shrimp
2026; high priority; full text needed
Could clarify functional overlap among 24 crustacyanin-family genes while preventing multi-omics pathway labels from becoming named-line genetics, colour recipes, molting advice or disease-resistance claims. Full methods still needed. The official publisher preview reports 24 NdCRCN genes, separate RNA-interference targeting of the highest-expressed A and C subunits, transcriptomic and proteomic comparisons, compensatory expression among family members, and anti-NdCRCN co-immunoprecipitation followed by LC-MS/MS. Accessible records do not expose shrimp and vessel counts, stock identity, sex or molt state, dsRNA and injection controls, allocation, knockdown denominators, library pooling, phenotype measurements, co-immunoprecipitation controls, endpoint-specific replication or full statistical methods. The preview reports pathway and interacting-protein results, not named trade-line crosses, standardized visible-colour change, carotenoid chemistry, whole-animal molt outcomes, bacterial challenge, survival or disease protection. A retained crustacyanin PDF was verified page by page as the distinct 2025 BMC Genomics article at DOI 10.1186/s12864-025-12371-6 and cannot satisfy this 2026 Aquaculture lead. Do not convert gene-family membership, pathway enrichment, compensatory expression or protein interaction into a breeding marker, colour-food recipe, molt intervention, immune supplement or disease-resistance claim. Retrieve the article and supplements through a library or corresponding-author request.
Mechanistic insights into novel triclosan target pathways in Neocaridina denticulata revealed by multi-omics integration
2026; high priority; full text needed
Could add a direct acute household-antimicrobial exposure with measured body accumulation, molecular pathways and biochemical validation. Full methods still needed. PubMed, Crossref and the publisher abstract report 24-hour nominal exposures of 1, 5 and 10 micrograms per litre with whole-body multi-omics and biochemical endpoints, but the accessible material does not expose animal and vessel counts, replication, allocation, solvent control, measured water concentrations, omics pooling, endpoint-specific denominators or analysis units. Do not convert the abstract into an aquarium threshold, product warning, clinical sign or decontamination protocol. Retrieve the article and supplements through a library or corresponding-author request.
Genes are differentially expressed at transcriptional level of Neocaridina denticulata following short-term exposure to nonylphenol
2011; high priority; method reviewed
Adds direct chemical-response evidence while teaching why a pooled transcript change is not automatically protein change, whole-animal harm, a household diagnosis or a safe concentration. Intake complete from PubMed and indexed author-personal-copy article content. The registry preserves one-day nominal exposures, pooled whole-animal RNA, no reported independent exposure-vessel replication or random allocation, no multiplicity correction, the abstract-versus-results conflict over six or five responsive transcripts at 0.01 mg/L, the PBS-versus-DMSO control-label conflict and the boundary against a protein, functional-harm, chronic, diagnostic, threshold or biomarker-protocol claim.
Development of Ecotoxicogenomic Biomarkers on the Freshwater Shrimp (Neocaridina denticulate) Following Short-Term Exposure to Dipropyl Phthalate
2013; high priority; method reviewed
Adds an open bilingual molecular exposure paper and a concrete example of why transcript direction, pooling, solvent controls and treatment-vessel replication must be checked beyond the abstract. Intake complete after full official-PDF text and 12-page rendered review. The registry preserves the two-hour exposure plus 12-hour clean-water discovery design, one-day concentration validation, pooled whole-animal RNA, unreported independent exposure-vessel replication and allocation, unmatched acetone control, nominal-only concentrations, inconsistent ten-versus-at-least-five shrimp pool wording, hidden control dispersion, no multiplicity correction, the English-abstract-versus-main-results direction conflict and the table footnote that mistakenly names nonylphenol. Do not convert selected transcript changes into protein abundance, immune competence, toxicity, survival, disease susceptibility, chronic harm, a plastic-product diagnosis, threshold or validated biomarker panel.
Research on the Response of Neocaridina denticulate to the Toxicity of Cu2+ and Chlorpyrifos
2014; high priority; full text needed
Identifies the acute mortality and mixture experiment that supplied the 96-hour LC50 values inherited by the 2015 copper and chlorpyrifos biomarker paper. The exact eight-page journal PDF and source identity are located. Its extracted text exposes a 96-hour semi-static design, three parallel beakers per nominal concentration, blank and chlorpyrifos vehicle controls, probit LC50 analysis and a copper-ion plus chlorpyrifos mixture analysis, but the embedded font drops the decisive concentration, interval and additive-index table cells. Direct rendered-page inspection is still required before intake. A 2026-08-12 retrieval audit found that the official PDF returned HTTP 418 to a direct request and an access-blocked page in a normal browser; a focused exact-title search found citations but no accessible primary copy. Keep this lead outside evidence. Do not promote the 3.44 mg/L copper-ion or 0.06 micrograms/L chlorpyrifos values repeated by the 2015 companion paper, the later 0.4 micrograms/L 24-hour chlorpyrifos citation, the reported synergy classification or the unquantified molting observation into primary table evidence, an N. davidi threshold, a safe aquarium level or a mixture prediction.
Physiological Response of Neocaridina denticulate to the Toxicity of Cu2+ and Chlorpyrifos
2015; high priority; method reviewed
Corrects the claim that no direct controlled Neocaridina copper exposure was located while preserving the species, water, chemical-form, biomarker and safe-level boundaries. Intake complete from the official full journal HTML. The registry preserves wild-source animals labelled Neocaridina denticulate without a reported identification method, three parallel beakers per concentration, nominal copper-ion and chlorpyrifos series, daily renewal, five-day fasting, unclear destructive-sample mapping to beakers, repeated concentration-by-day testing and concentration-label inconsistencies. The 96-hour LC50 values used to select treatments came from the now-identified 2014 acute predecessor, not this experiment; that predecessor remains full text needed because its extracted numerical tables are incomplete. Do not convert inherited LC50 values, muscle biomarkers or zero mortality in the selected sublethal groups into N. davidi identity, a no-effect level, safe home concentration, diagnosis or dosing instruction.
Gene expression profiling and expression analysis of freshwater shrimp (Neocaridina denticulata denticulata) using expressed sequence tags and short-term exposure to copper
2018; high priority; method reviewed
Adds a second direct copper transcript experiment while showing why pooled RNA, an unreported exposure unit and an internally inconsistent water record do not validate a field biomarker or safe level. Intake complete after full official-PDF text extraction and rendered review of all seven pages. The registry separates the ten-animal non-exposed baseline cDNA library from the three-animal pooled copper series, preserves the figure-labelled 0 to 100 micrograms per litre 24-hour dose range, the unstated time-series concentration, unreported exposure vessels and allocation, nominal-only water concentration, sole beta-actin reference, unclear biological replication, missing multiplicity model and the 28 PSU salinity statement that conflicts with the freshwater lake description. Do not convert selected pooled whole-body mRNA changes into protein abundance, toxicity, molting impairment, immune competence, diagnosis, a safe concentration or validated biomarker panel.
Transcriptome analysis of Neocaridina denticulate sinensis under copper exposure
2021; high priority; full text needed
Could add a cephalothorax RNA-seq copper experiment and clarify whether immune and molting pathway interpretations reproduce across tissues and better-defined biological units. Full methods still needed. The official publisher preview reports 20 adult shrimp per control or nominal 2.5 micromoles per litre copper-ion group for 48 hours, one described tank per group, three separately dissected cephalothorax samples per group, six RNA-seq libraries, 122,512 assembled unigenes, 219 differentially expressed genes and seven qPCR checks. The accessible material does not expose complete tank replication, water chemistry, copper verification, sample-to-animal mapping, RNA-seq contrasts, qPCR denominators, reference genes or full statistical methods. Do not convert abstract pathway enrichment or transcript direction into molting impairment, immune competence, whole-animal toxicity, a biomarker panel, diagnosis or safe aquarium concentration. Retrieve the full article and supplements through a library or corresponding-author request.
Transcriptomic analysis of Neocaridina denticulate sinensis hepatopancreas indicates immune changes after copper exposure
2022; high priority; full text needed
Could add a 12-hour hepatopancreas RNA-seq comparison to the same laboratory group's 48-hour cephalothorax study while testing whether tissue and time differences are being mistaken for independent replication. Full methods still needed. The official publisher preview reports laboratory-bred adults, 20 shrimp randomly selected per 0 or nominal 2.5 micromoles per litre copper-ion group, analytical-grade copper sulfate pentahydrate, a 12-hour endpoint, six hepatopancreas RNA-seq libraries, 23,266 assembled unigenes, 16,423 differentially expressed genes and eight qPCR checks. The accessible material does not expose the completed copper-preparation sentence, treatment-vessel count and volume, water chemistry, analytical copper verification, sample-to-animal and sample-to-tank mapping, library pooling, qPCR denominators and reference genes, full differential-expression thresholds, multiplicity handling or whether this cohort was independent of the same group's 2021 cephalothorax paper. ResearchGate offers an author-request page rather than full text. Do not convert abstract immune-pathway enrichment or transcript direction into immune competence, detoxification, copper tolerance, toxicity, disease resistance, a diagnosis, safe concentration or independent replication. Retrieve the article and supplements through a library or corresponding-author request.
Membrane-bound trehalase enhances cadmium tolerance by regulating cell apoptosis in Neocaridina denticulata sinensis
2024; high priority; full text needed
Tests a cadmium-responsive trehalase candidate while exposing the crucial difference between shrimp molecular responses and metal tolerance measured in recombinant bacteria. Full methods still needed. PubMed, the publisher abstract and the Hebei University laboratory summary report NdTre2 cloning, gill-biased expression that decreased 12 hours after cadmium stimulation, double-stranded-RNA knockdown, gill transcriptomics, selected apoptosis-pathway validation, DNA fragmentation and TUNEL/DAPI staining. The reported cadmium-tolerance assay overexpressed recombinant NdTre2 in Escherichia coli and measured bacterial survival and growth, not shrimp survival or recovery. Accessible sources do not expose shrimp and vessel counts, cadmium concentrations and preparation, water chemistry, measured water or tissue cadmium, exposure and injection controls, allocation, RNA-seq pooling, endpoint denominators, blinding, complete statistical methods or whole-animal shrimp outcomes after knockdown. ResearchGate offers an author-request page rather than full text. Do not convert the title, pathway enrichment, gill apoptosis staining, recombinant-protein binding or bacterial assay into demonstrated shrimp cadmium tolerance, immune competence, molting control, a safe concentration, diagnosis, treatment, supplement or genetic test. Retrieve the article and supplements through a library or corresponding-author request.
Identification and functional analysis of a novel L-type lectin (NdLTL1) from Neocaridina denticulata sinensis
2025; high priority; full text needed
Separates shrimp challenge-responsive expression from recombinant-protein binding and bacterial agglutination while preventing an in vitro assay from becoming disease-resistance or supplement advice. Full methods still needed. PubMed, the publisher preview and the Hebei University laboratory summary report a market source, one-week acclimation at 25 C, genome-wide mining of 179 lectin-like sequences, high cardiac NdLTL1 expression, increased gill expression after Vibrio parahaemolyticus exposure, recombinant NdLTL1 produced in Escherichia coli, binding to several bacteria and carbohydrates, calcium-dependent bacterial agglutination and in vitro bacterial-growth assays. Accessible sources do not expose challenge animal and vessel counts, independent tank replication, bacterial dose and route, controls, allocation, tissue pooling, sampling denominators, recombinant-protein and assay controls, complete replication or full statistical methods. No accessible record reports shrimp survival, disease signs, bacterial load, clearance or protection after manipulating NdLTL1. ResearchGate states that no full text is available and offers a request page. Do not convert challenge-responsive expression, binding, bacterial clumping, calcium dependence or in vitro bacterial growth into demonstrated shrimp immune competence, disease resistance, a diagnosis, treatment, probiotic, prebiotic, sugar product or calcium supplement. Retrieve the article and supplements through a library or corresponding-author request.
RNA-seq analysis revealing the immune response of Neocaridina denticulata sinensis gill to Vibrio parahaemolyticus infection
2022; high priority; full text needed
Adds the direct gill transcript experiment cited by the later NdLTL1 paper while separating PBS-versus-bacterial stimulation from infection severity, disease protection and treatment evidence. Full methods still needed. PubMed and the publisher preview report market-source animals 1.5 plus or minus 0.2 cm long, one month in a 25 C laboratory circulating-water system, a PBS control and Vibrio parahaemolyticus stimulation comparison, six gill RNA-seq libraries labelled C12_1 through C12_3 and S12_1 through S12_3, 1,358 differentially expressed genes and qPCR checks of six selected lysosome-pathway genes. Accessible material does not expose the complete bacterial preparation, challenge dose and route, animal and vessel counts, independent tank replication, allocation, whether gill libraries pooled animals, sample-to-animal and sample-to-tank mapping, qPCR denominators and reference genes, tissue-damage methods, complete statistical thresholds or multiplicity handling. No accessible record reports shrimp survival, clinical signs, bacterial load, clearance, transmission or protection. Do not convert transcript direction or pathway enrichment into natural-infection risk, disease diagnosis, pathogenicity, immune competence, disease resistance, treatment, prevention or a validated biomarker panel. Retrieve the article and supplements through a library or corresponding-author request, then compare its animals and challenge protocol with the same laboratory group's later NdLTL1 paper rather than assuming an independent replication.
Transcriptome analysis of Neocaridina denticulate sinensis challenged by Vibrio parahemolyticus
2022; high priority; full text needed
Adds a hepatopancreas transcript comparison while separating an injected challenge discussed in an AHPND context from evidence that the tested strain carried PirAB toxins or caused AHPND or whole-animal disease in Neocaridina. Full methods still needed. PubMed and the publisher preview report open-fair animals maintained in the laboratory for two years, 30 healthy shrimp approximately 1.5 plus or minus 0.5 cm long, 25 plus or minus 1 C circulating water, hepatopancreas sampling after Vibrio parahaemolyticus injection, six cDNA libraries, 23,624 genes, 21,464 differentially expressed genes and eight qPCR checks. The accessible preview cuts before the complete acclimation and bacterial-challenge methods and does not expose group allocation, bacterial dose and volume, strain characterization, injection and control details, animal and vessel counts per treatment, independent tank replication, library pooling, sample-to-animal and sample-to-tank mapping, qPCR denominators and reference genes, complete differential-expression thresholds or multiplicity handling. It reports no shrimp survival, clinical signs, bacterial load, clearance, transmission or hepatopancreas pathology. The title, abstract and keywords discuss AHPND, but the accessible record does not establish that the challenge strain carried PirAB toxins or caused AHPND in Neocaridina. Six libraries are not automatically six animals or tanks, and 21,464 changed transcripts are not 21,464 disease mechanisms. Do not infer natural aquarium infection risk, an AHPND diagnosis, pathogenicity, immune competence, disease resistance, treatment, prevention or a validated biomarker panel. Retrieve the article and supplements through a library or corresponding-author request, then establish whether this was a distinct animal cohort and challenge protocol from the same laboratory group's 2022 gill RNA-seq paper rather than calling the two independent replication.
Exploiting the Freshwater Shrimp Neocaridina denticulata as Aquatic Invertebrate Model to Evaluate Nontargeted Pesticide Induced Toxicity by Investigating Physiologic and Biochemical Parameters
2021; high priority; method reviewed
Adds direct movement, heartbeat and maxilliped-movement endpoints for one insecticide while teaching why animal-level videos do not repair unreplicated treatment tanks. Intake complete after full publisher-PDF and 24-page rendered review. The registry preserves a commercial 28.8 percent imidacloprid formulation, nominal-only exposures, no formulation-only control, apparent one-tank-per-treatment assignment, conflicting 12-versus-20 animal descriptions, fasting effects, repeated individual measurements, small whole-animal assay groups, one-tank rescue groups, active effects of acetylcholine and docking to a snail acetylcholine-binding protein rather than a shrimp receptor. Do not convert movement or cardiac effects into a home diagnosis, recovery claim, acetylcholine antidote, product rule, aquarium dose or universal threshold.
Acute toxicity of mixture of acetaminophen and ibuprofen to Green Neon Shrimp, Neocaridina denticulate
2014; medium priority; method reviewed
Adds a direct 96-hour juvenile mortality experiment while showing why a lower mixture LC50 is not automatically proof of synergy or an aquarium threshold. Intake complete after review of the author-uploaded full text and tables. The registry preserves river-source animals, 10- to 14-day-old approximately 1.5 mm juveniles, 20 shrimp per reported group, 1-litre beakers, nominal static-renewal exposures, DMSO stocks, sodium-chloride reference tests, four stated repeats, duplicate treatments, Table 2 n = 4, five mortality times and full LC10, LC50 and confidence intervals. The paper does not reconcile repeats, duplicates and n; report measured concentrations, DMSO fraction or vehicle control; define whether the 1:1 concentration is per component or summed; or add the fixed 0.5 mg/L co-exposure to unequal-series LC50 labels. Its synergy and antagonism language lacks a concentration-addition, independent-action, toxicity-unit, model-deviation or isobologram analysis, and the abstract pairs non-significance with p < 0.05. Do not convert acute nominal mortality in tiny juveniles into a safe aquarium level, chronic outcome, medication instruction, disposal rule, wastewater prediction or universal mixture rule.
Differential immune responses of the green neon shrimp (Neocaridina denticulate) to dipropyl phthalate
2011; high priority; full text needed
Could connect DPrP exposure to time-specific immune assays and bacterial-challenge mortality without inferring disease resistance from transcript levels alone. Full methods still needed. PubMed and the publisher abstract report nominal 0, 1, 5, 10 and 50 mg/L DPrP exposures, six immune parameters, Aeromonas veronii challenge and mortality on days 1, 3, 5 and 10, but the article is paywalled and the indexed request page exposes no complete methods. Animal and vessel counts, treatment replication, acetone control, exposure renewal, bacterial dose and route, challenge allocation, endpoint denominators, censoring and analysis units remain unverified. Do not convert abstract mortality percentages into an aquarium threshold, plastic-product warning, infection diagnosis, immune supplement claim or treatment protocol. Retrieve the article through a library or corresponding-author request.
Effect of different substrates on growth and biochemical composition of the ornamental red cherry shrimp Neocaridina davidi
2022; high priority; full text needed
Could separate substrate effects on growth from colour preference and general habitat assumptions. Full methods still needed. The 90-day abstract compares Vesicularia, Ceratophyllum, Cabomba and plastic net and reports growth, survival and ovigerous-female outcomes. The official 710291-byte CONICET published-version deposit is restricted, Wiley exposes only the abstract without access, and scholarly indexes locate no open copy. Aquarium replication, allocation, conditioning, surface area, feeding and analysis units remain unverified, so the percentages do not support a habitat recommendation. Request the article or study data from the corresponding author.
Characterization of the moult cycle in Neocaridina denticulata sinensis Kemp, 1918: the moulting frequency, moulting stages, and haemolymph ecdysteroid levels
2022; high priority; full text needed
Could replace generic molt-frequency calendars with life-stage, temperature and visible-stage observations from a direct Neocaridina study. Full methods still needed. The abstract reports 14 molts from hatch through first complete pleopod development at 25 C, four main periods, five premolt substages and adult male-versus-female ecdysteroid patterns. The publisher article is paywalled and no legal public manuscript was located. Animal counts, observation intervals, rearing units, independence, censoring and the exact definition of first complete pleopod development remain unverified, so the abstract does not support a home molt calendar or intervention. Request the article or study data through a library or corresponding author.
Effect of social environment on sexual differentiation in the highly gregarious red cherry shrimp Neocaridina davidi
2019; high priority; method reviewed
Directly tests whether adult sex composition changes juvenile phenotypic sex under one controlled protocol. Intake complete. The registry preserves brood-level replication, one excluded brood, pleopod-based sexing and the boundary against a universal genetic mechanism.
Effects of dietary incorporation of Arthrospira platensis meal on growth, survival, body composition, and reproductive performance over successive spawnings
2017; high priority; method reviewed
Measures several outcomes that hobby food claims frequently combine without a controlled denominator. Structured after author-uploaded full-text review. Keep fish-meal replacement, three aquarium replicates, artificial egg incubation, low control survival and the dry-formulation boundary visible.
Leaf-litter preferences of the introduced freshwater shrimps Atyaephyra desmarestii and Neocaridina davidi
2017; high priority; full text needed
Could replace generic botanical claims with a bounded comparison of conditioned leaf species, life stages and consumption. Full methods still needed. The official University of Cologne record and OAI metadata identify the accessible 174 kB file as a four-page Thesis Abstract. The German National Library catalogs a physical 63-page 2018 dissertation, and its official contents page places the leaf-litter article in chapter III on pages 34 to 50. It supplies no electronic dissertation file. OpenAlex reports no repository with full text, and its apparent University of Cologne OAI identifier 24511 is stale because the repository returns idDoesNotExist. The publisher reader stops at human verification and its machine-readable article route denies access. The abstracts report adult versus juvenile preferences, nighttime activity and a 51.0 percent leaf-litter dry-weight result normalized to body dry weight, but choice-vessel replication, conditioning duration and water, leaf mass or area normalization, position rotation, other feeding, decomposition and biofilm controls, non-consumption mass-loss correction, observation schedule, body dry-weight estimation, experimental unit and analysis remain unverified. These abstract findings do not support a leaf recommendation, aquarium ration, replacement interval, complete-diet claim or health claim. Request the 16-page article, physical dissertation or study data through a library, repository or corresponding author.
Promotive performance of shrimp Neocaridina denticulata on Typha angustifolia leaf litter decomposition
2019; high priority; method reviewed
Separates direct shrimp contact from fecal effects on one leaf litter and shows why decomposition, ingestion, water chemistry and shrimp nutrition are different claims. Intake complete after full author-uploaded article review. The registry preserves 64 four-litre treatment-by-time buckets, four units per treatment and destructive 35-day harvest, eight river-collected shrimp plus 3 g air-dried cattail litter in each shrimp unit, weekly filtered river-water replacement, no formulated-food baseline, derived rather than measured grazing shares, inconsistent Typha angustifolia versus Typha orientalis labels, conflicting animal holding descriptions, no reported random allocation or obvious sham-mesh control, and the unexplained use of repeated-measures analysis for destructive units. Reported zero mortality cannot establish dietary adequacy without intake, growth, condition, molting, reproduction or health endpoints. Do not convert litter mass loss into a cattail, catappa or alder recommendation, ration, complete-diet claim, replacement interval, home water-safety promise or shrimp-per-leaf formula.
Effects of different aquarium feeds on growth performance and survival rate of red cherry shrimp Neocaridina denticulata
2016; high priority; method reviewed
Direct feed comparison could improve practical feeding guidance if the products, ration and units are recoverable. Structured after full-method review. Keep product formulation and physical form confounded, feeding to satiation explicit and the aquarium as the experimental unit.
The effectiveness of natural feed in enhancing color and survival rate of ornamental shrimp Neocaridina sp.
2025; high priority; method reviewed
Directly tests common live-food and colour claims while exposing why a treatment mean is not a complete-food, biosecurity or grade recommendation. Intake complete after full open-PDF and page-image review. The registry preserves three aquaria per feed, an unresolved integer starting count, genus-only stock identity, unmeasured ad-libitum intake, unidentified control pellets, the conflicting four-versus-five colour scale, contradictory significance note and discussion, pooled water ranges and the boundary against a Tubifex dose, complete-food claim, colour-grade method or instruction to introduce live worms.
Effect Of Market Vegetable Waste Fermented Feeding On The Growth Of Red Cherry Ornamental Shrimp (Neocaridina davidi)
2023; high priority; method reviewed
Directly addresses vegetable-feeding folklore while separating one fermented preparation comparison from fresh produce, food-safety and complete-diet claims. Intake complete. The registry preserves three aquaria per feed, ad-libitum availability, unstandardized intake and dry matter, unresolved analysis unit, substantial handling-associated mortality and the boundary against grocery-scrap or home-fermentation recipes.
Effects of chlordane and lindane on testosterone and vitellogenin levels in green neon shrimp Neocaridina denticulata
2004; medium priority; method reviewed
Adds the acute-to-juvenile start of a three-paper pesticide sequence while separating mortality, biochemical proxies and later reproductive outcomes. Intake complete after full repository-PDF and page-image review. Preserve triplicate beaker wording alongside the absent chronic sampling denominator and beaker-to-assay mapping, the acute group-count and confidence-interval conflicts, nominal concentrations, nonspecific alkali-labile phosphate proxy, unmatched alcohol positive-control vehicle and repeated paired tests without multiplicity correction. Do not use the reported LC50 values as aquarium targets or call this an independent replication of the later male or female experiments.
Effects of the endocrine disrupter chemicals chlordane and lindane on the male green neon shrimp Neocaridina denticulata
2004; medium priority; method reviewed
Adds direct male hormone-associated and appendage endpoints while preventing a variable morphometric response from becoming a visible diagnosis. Intake complete after full repository-PDF and page-image review. Preserve three exposure beakers per group, unexplained mapping of figure n values to beakers, nominal concentrations, no reported renewal schedule, nonspecific alkali-labile phosphate proxy, unmatched alcohol positive-control vehicle and repeated paired tests without multiplicity correction. Appendage effects varied by time and concentration and reproductive competence was not tested. Treat it as a separate linked experiment, not an independent replication.
Reproduction obstacles for the female green neon shrimp after exposure to chlordane and lindane
2006; medium priority; method reviewed
May add direct endocrine and reproductive toxicology with historical taxon identity retained. Structured after repository full-text and page-image review. The female hormone groups used triplicate beakers, but the separate reproductive comparison used one shared treatment beaker per group and only 0 to 8 of 20 females became ovigerous. Keep the pooled hormone samples, unclear beaker-to-assay mapping, nominal concentrations, unmatched alcohol positive-control vehicle, repeated paired tests and conditional brood denominators visible. Treat this as a third linked experiment, not an independent replication of the juvenile or male papers.
Reproduction and population dynamics of the temperate freshwater shrimp Neocaridina denticulata denticulata in a Korean stream
2003; medium priority; method reviewed
Could broaden field life-history context without turning a Korean stream population into aquarium timing. Structured after full-method review. Retain the five monthly box samples, length-frequency modeling, published taxon and field-to-aquarium boundary.
Population ecology of Neocaridina denticulata in the Sugow River, Japan
1990; medium priority; method reviewed
Adds an older field baseline for seasonality, density and population structure under a historical name. Structured after bilingual full-text review. Retain time-based netting, mesh selectivity, inferred cohorts and the allocated sex ratio for animals below 8 mm.

Next scheduled census: February 12, 2027.

How to read the labels

Evidence classWhat the label means
Controlled experiment An assigned treatment or controlled comparison. The treatment, unit, duration and endpoint still limit the claim.
Field observation Animals were observed in a field population. Occurrence and association do not create a home-aquarium optimum or prove causation.
Morphology or taxonomy Anatomy, specimen identification or taxonomic relationships were studied with stated methods. A trade name or photograph cannot replace those methods.
Review or synthesis A source assembled findings and gaps across studies. It is useful for scope, but is not a new direct species experiment.
System observation or method study An aquarium, analytical or biological system was observed without an assigned Neocaridina animal treatment. The species relationship still identifies whether the evidence is biological or system-adjacent.
Species relationshipWhat the label means
Direct Neocaridina evidence The source measured animals named within Neocaridina. Direct still does not mean universal or sufficient.
Neocaridina identity evidence The source addresses identity, relationships or genetics within the Neocaridina complex.
Broader ornamental-shrimp review The source reviews several ornamental-shrimp taxa and may include Neocaridina literature.
Adjacent biological evidence The source studied another organism or a broad biological group. The inference to Neocaridina must remain explicit.
Adjacent aquarium-system evidence The source studied aquarium chemistry, filtration, measurement or another engineered system rather than a Neocaridina animal endpoint.

The experimental unit is the independently assigned or sampled unit. Ten shrimp sharing one exposure vessel are not ten independent water replicates. Treatment conditions also travel with the result. An acute mortality estimate is not a chronic aquarium target, and a field occurrence is not a species optimum.

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Controlled experiment Neocaridina identity evidence

Decoding color variation: genome-wide characterization and expression analysis of pigment pathways in Neocaridina denticulata

Bai et al., 2026. BMC Genomics 27: 535.
Source taxon as published: Purchased red, yellow and blue Neocaridina denticulata strains without reported voucher, diagnostic identity method, trade names or ancestry

Study shape: Pigment-pathway homologs were identified from public BioProjects and unpublished laboratory genomic and transcriptomic data. Six adult tissues and whole juveniles were compared by 18S-normalized qPCR with three biological samples and technical triplicates. CRCN abundance was compared by western blot, and fluorescence at 380/450 nm was measured after separate cephalothorax and abdomen extraction with hepatopancreas and intestine removed.

Experimental unit: Three biological samples per strain and endpoint were reported, but the number and sex of shrimp per sample, pooling, molt state, independent source-tank history, number of culture tanks and strain-to-tank allocation were not defined; technical triplicates are subsamples

Environment: Purchased red, yellow and blue strains held in 29 x 18 x 15 cm transparent recirculation-system tanks at 26 +/- 2 C and pH 7.2 to 7.5, with the number of tanks and strain-to-tank allocation unreported

Endpoints: candidate pigment-pathway homologs and phylogenies, adult-tissue and whole-juvenile relative gene expression, CRCN western-blot band intensity relative to tubulin, body-region relative fluorescence used as a pteridine proxy.

What it can support: The tested red, yellow and blue source strains differed in selected tissue and juvenile transcript levels, CRCN western-blot abundance and body-region relative fluorescence. These cross-sectional associations identify candidate carotenoid and pteridine pathways for follow-up; the tested blue strain had higher normalized CRCN band intensity than the red and yellow strains.

What it cannot support: The study did not manipulate candidate genes, cross strains, measure inheritance, quantify a standardized visible-colour phenotype, identify or quantify individual pteridine compounds, assay carotenoid composition, assign diets or validate seller lines. Its red, yellow and blue labels were not connected to named aquarium morphs, vouchers, diagnostic species confirmation, ancestry or pedigrees. Three biological samples per endpoint, unresolved animal pooling and tank history, an unreported calibrator for 2^-delta-delta-Ct comparisons, relative fluorescence without reported tissue-mass normalization, unpublished sequence inputs and low-powered distribution tests at n = 3 limit causal or reproducible pathway ranking. The work cannot provide a genotype test, dominance chart, feed or carotenoid prescription, colour-grade prediction, ancestry claim or commercial trade-line pedigree.

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Used in: /care/colours, /care/genetics, /care/species

Citation export: CSL-JSON or RIS. Both retain this record's support and limit notes.

Controlled experiment Neocaridina identity evidence

Functional Analysis of the NinaB-like Gene in Body Color Regulation of Neocaridina denticulata sinensis

Li et al., 2026. BioTech 15(1): 15.
Source taxon as published: Neocaridina denticulata sinensis

Study shape: Expression was compared across colour strains and stages; RNA interference and sampled SNP associations were examined.

Experimental unit: Embryo group or biological sample, depending on endpoint

Environment: Laboratory expression, association and RNA-interference study

Endpoints: NinaB-like expression, red pigment deposition, SNP association.

What it can support: Functional involvement and sampled genetic associations for body-colour regulation in the source taxon.

What it cannot support: The candidate SNPs do not certify Blue Dream, Sunkist, purity, relatedness or a universal named-morph genotype.

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Used in: /care/colours, /care/genetics, /care/species

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Field observation Direct Neocaridina evidence

First findings in Ukraine and current distribution trends of Neocaridina davidi in freshwaters of Europe

Sidorovskyi, 2026. Fisheries Science of Ukraine 1(75): 98-114.
Source taxon as published: Neocaridina davidi

Study shape: Hydrobiological dip-net collections at two coordinates were preserved in 96 percent ethanol and identified by stereomicroscopy; later visits were used to report non-detection after the initial records.

Experimental unit: Field collection event at either of two Kharkiv water bodies; sampling frequency, effort and detection probability were not reported

Environment: Two urban water bodies in Kharkiv, Ukraine, surveyed between June 2020 and December 2025

Endpoints: specimen occurrence, body length, sex count, ovigerous-female count, later non-detection, site context.

What it can support: The article documents 10 and 6 shrimp at one site in 2020 and 2021, seven at a second site in 2024, ovigerous females in every positive collection and later non-detection at both sites.

What it cannot support: Later non-detection does not prove extinction because sampling effort and detectability were not reported. Identification was described as stereomicroscopy without diagnostic character results or a molecular confirmation. The end of warm runoff was not an assigned temperature treatment, and no released source stock was traced. The observations do not establish a thermal threshold, prove release causation or make any climate release-safe.

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Morphology or taxonomy Direct Neocaridina evidence

Ectoparasites in Ornamental Shrimps Neocaridina denticulata and Neocaridina palmata from Purbalingga Fish Market Aquariums

Kusmintarsih et al., 2025. E3S Web of Conferences 609: 02003.
Source taxon as published: Market-labeled Neocaridina denticulata and Neocaridina palmata; no host-identification method reported

Study shape: One hundred market-labeled N. denticulata and 100 market-labeled N. palmata were transported in market aquarium water. Gill and cephalothorax material was scraped onto slides and examined by microscopy for organisms reported as sessile bdelloid rotifers, Vorticella sp. and Zoothamnium sp.

Experimental unit: Individual examined shrimp, clustered within an unreported number of sampled aquariums from one seller and one claimed river source

Environment: Two hundred shrimp sampled across more than eight aquariums operated by the only ornamental-shrimp seller at one fish market in Purbalingga, Central Java, Indonesia

Endpoints: presence of reported organism group, host label, reported sex, gill or cephalothorax location.

What it can support: In this one-seller sample, the authors reported at least one of the three organism groups on 156 of 200 examined shrimp, including 78 of 100 under each market species label.

What it cannot support: Aquarium identities and sample counts, collection dates, host-species identification, sexing method, microscope magnification, diagnostic key, stain, image vouchers, molecular confirmation, examiner blinding, confidence intervals and the named statistical test were not reported. The two market labels were reportedly kept together, and the analysis did not account for aquarium clustering. No tissue damage, respiration, behaviour, growth, reproduction, mortality, transmission, treatment or causal disease endpoint was measured. The 78 percent result is not a trade-wide prevalence estimate, does not validate a home diagnosis, does not prove every detected organism was parasitic or harmful and does not establish a treatment indication.

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Field observation Direct Neocaridina evidence

Paradise under threat: the successful invasion of the freshwater shrimp Neocaridina davidi (Bouvier, 1904) and its microsporidian parasites on La Reunion Island

Prati et al., 2025. BioInvasions Records 14(2): 403-419.
Source taxon as published: Neocaridina davidi; Ecytonucleospora hepatopenaei, Orthosomella lipae, Microsporidium sp. SRE01 and Microsporidium sp. SRE02 as named by the source

Study shape: Forty shrimp were dip-netted at each of three sites and preserved immediately in 96 percent ethanol. All were identified morphologically, measured, sexed or classified as immature, dissected, visually screened internally and tested molecularly. Host CO1 and microsporidian SSU rRNA amplicons were Sanger sequenced and placed with reference sequences in maximum-likelihood phylogenies with 1000 bootstrap replicates.

Experimental unit: Individual field-collected shrimp for morphology, internal visual screening and molecular detection; one date and three sites in two catchments for the field occurrence observations

Environment: Three freshwater sites in two catchments on La Reunion Island sampled on 15 April 2024 at 24.5 to 26.2 C and 76 to 268 microS/cm conductivity

Endpoints: host morphology and CO1 identity, sex and life-stage counts, carapace length, microsporidian PCR-positive count, sequence similarity and phylogenetic placement, site occurrence, one-day temperature and conductivity.

What it can support: Five of 120 sampled shrimp were PCR positive for four reported microsporidian sequence types: two Orthosomella lipae detections at the Salazie creek, and one Ecytonucleospora hepatopenaei, one Microsporidium sp. SRE01 and one Microsporidium sp. SRE02 detection at Bras Citronnier. None of the 40 Ravine Seche shrimp was positive. All 120 hosts shared one CO1 haplotype reported as 100 percent similar to the N. davidi reference set.

What it cannot support: This is a one-day field sample from three sites, not an aquarium or trade prevalence estimate. The paper reports no histology, tissue lesions, clinical signs, survival, experimental transmission, pathogenicity or treatment endpoint, and it did not test native co-occurring shrimp for parasites. Ethanol preservation prevented epibiont analysis. The single host CO1 haplotype cannot prove a single introduction, seller line, release event or movement route between catchments. Sequence similarity cannot establish parasite origin or that N. davidi introduced any organism. One Table 2 subgroup is internally inconsistent, listing 16 immatures while reporting two positives as 2 of 14, so subgroup percentages should not be repeated as settled denominators. The one-day site temperature and conductivity readings are not aquarium care limits, and zero of 40 at one site is not proof of absence.

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Morphology or taxonomy Neocaridina identity evidence

Confirmed by integrative taxonomy first and unusual occurrence of the exotic shrimp Neocaridina davidi (Caridea: Atyidae) in Brazil

Bochini et al., 2024. Boletim do Instituto de Pesca 50: e849.
Source taxon as published: One adult female identified by the source as Neocaridina davidi and deposited as voucher CCDB 6963

Study shape: Three double-bottom shrimp-boat trawls on one coastal sampling date yielded the single specimen. It was frozen, preserved in 100 percent ethanol, measured, compared with published morphology methods and sequenced at mitochondrial COI and 16S plus nuclear 18S and H3 loci. COI entered a maximum-likelihood analysis with a model selected by Bayesian information criterion and 1,000 ultrafast bootstrap replicates; the other loci were used as identity checks.

Experimental unit: One collected and vouchered adult female for morphology and all four molecular markers; one site, one date and three incompletely quantified trawls for the occurrence observation

Environment: One coastal sampling event on 14 February 2022 at Candeias beach, Pernambuco, Brazil, where three double-bottom shrimp-boat trawls recovered one live specimen among filamentous algae

Endpoints: voucher identity, carapace length, morphological identification, COI phylogenetic placement and genetic distance, 16S sequence, 18S sequence, H3 sequence.

What it can support: The source documents one vouchered adult female identified as N. davidi from a Brazilian coastal marine trawl. Its COI sequence was reported at zero genetic distance from selected Polish and Canadian N. davidi sequences, and the authors deposited reported COI, 16S and 18S sequence accessions.

What it cannot support: One animal establishes a specimen occurrence, not an established or reproducing Brazilian population. The study did not report ambient salinity, temperature, depth, capture duration, animal condition after capture, residence time, physiological measurements, osmoregulation, survival, reproduction, abundance, repeated sampling or sampling of the nearby lagoon and estuary. Diagnostic morphological character states were not tabulated, and only COI had a comparative phylogeny; identical short mitochondrial sequences cannot trace a European source, aquarium seller, release event, ancestry or route. The reported H3 identifier SUB14399993 is a submission identifier rather than a standard GenBank accession. An aquarium-trade origin was proposed as the most plausible hypothesis but was not directly tested. This record cannot establish marine tolerance, a salinity acclimation method, South American distribution, population impact, parasite transfer, a trade-line identity or permission to release aquarium animals.

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Field observation Direct Neocaridina evidence

Invisible invaders: range expansion of feral Neocaridina davidi offers new opportunities for generalist intracellular parasites

Prati et al., 2024. Biological Invasions 26: 2499-2523.
Source taxon as published: Neocaridina davidi

Study shape: Feral occurrence, environmental conditions and intracellular parasite relationships were investigated.

Experimental unit: Field population, site and sampled animal, depending on endpoint

Environment: European feral populations with field sampling and molecular parasite work

Endpoints: feral occurrence, range expansion, microsporidian detection, environmental context.

What it can support: Feral populations and intracellular parasite associations exist in the sampled locations.

What it cannot support: One site value is not a care boundary, and field parasite detection is not a prevalence estimate for the aquarium trade.

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Morphology or taxonomy Neocaridina identity evidence

Integrative Taxonomy Reveals Freshwater Shrimp Diversity from Kyushu and Southern Honshu of Japan, with a Discussion on Introduced Species

Shih et al., 2024. Zoological Studies 63: 18.
Source taxon as published: Eight Neocaridina species or provisional lineages from Japan

Study shape: COI DNA barcoding, morphology and geographic context were combined to identify native, non-native and provisional Neocaridina lineages.

Experimental unit: Collected specimen and locality, with sequences interpreted within the sampled phylogeny

Environment: Museum-deposited specimens from eighteen sites in Kyushu and southern Honshu

Endpoints: morphological characters, COI haplotypes, species delimitation, geographic occurrence.

What it can support: Integrative evidence distinguished several co-occurring Neocaridina lineages and exposed limits of a single barcode or character.

What it cannot support: The Japanese field result does not identify a commercial colour line, establish ancestry from a photograph or resolve every competing species treatment.

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Morphology or taxonomy Neocaridina identity evidence

Integrative Taxonomy Reveals New Insights into the Species Validity of the Neocaridina davidi-N. denticulata-N. heteropoda Complex

Yang et al., 2024. Current Issues in Molecular Biology 46: 12279-12298.
Source taxon as published: Neocaridina davidi, N. denticulata and N. heteropoda complex

Study shape: Morphological characters, mitogenomes, genetic distances and phylogeny were compared across three forms.

Experimental unit: Examined specimen and sequence

Environment: Integrative specimen study from the Baiyangdian drainage area

Endpoints: morphological differentiation, mitogenomic distance, phylogenetic placement.

What it can support: A published proposal to combine several named forms under Neocaridina denticulata.

What it cannot support: The current DecaNet authority has not adopted that proposal, and the paper does not identify aquarium stock from colour.

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Morphology or taxonomy Direct Neocaridina evidence

Occurrence of Scutariella worms on Neocaridina davidi shrimp (Bouvier, 1904) in Hungary

Hoitsy et al., 2023. Magyar Allatorvosok Lapja 145(6): 351-358.
Source taxon as published: Owner-submitted captive Neocaridina davidi from multiple breeders; host-identification method not reported

Study shape: Owners submitted 15 shrimp from different breeders after seeing moving white organisms on the day of introduction or within the following days. The shrimp were photographed, and associated live worms were collected into water drops, examined by stereomicroscopy and light microscopy, and identified from stated morphological references.

Experimental unit: Selected submitted shrimp for carrier observations and an unreported number of removed worms for morphological identification; five shrimp shared each of three holding aquaria, but no treatment or outcome comparison was assigned

Environment: Fifteen selected diagnostic submissions held five per approximately 18-litre aquarium at reported pH 6.8, conductivity 300 microsiemens and 25 C during examination

Endpoints: visible worm count and body region, worm length, live worm morphology, species identification, presence of worm eggs in the branchial chamber.

What it can support: All 15 selected shrimp carried visible opalescent-white moving worms, with 2 to 8 observed on the head, antennae or rostral region. Examined worms were reported as 0.8 to 2.0 mm long and identified as Scutariella japonica using paired anterior projections, two eyespots, internal reproductive anatomy and a posterior horseshoe- or heart-shaped sucker. Some worms contained eggs, and eggs were visible through the lateral carapace in the branchial chamber.

What it cannot support: This was a selected diagnostic case series, not a prevalence, transmission, quarantine-duration, water-quality or source-risk study. Host identity was not independently verified, source counts and clustering were not reported, the number of worms examined was omitted, and no molecular confirmation, voucher or image-accession record was stated. The study measured no respiration, gill lesion, molting failure, growth, reproduction, mortality, spontaneous clearance or treatment outcome. Harm statements were literature synthesis, not observations in these 15 shrimp. Fenbendazole was mentioned in one discussion sentence without product, dose, exposure, allocation, control, efficacy, recurrence or host-safety data. It cannot support a treatment recipe, a claim that every white worm is S. japonica or use of treatment response as diagnosis.

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Morphology or taxonomy Neocaridina identity evidence

Barcoding of ornamental freshwater shrimp, Neocaridina denticulata (De Haan, 1844) from the aquatic ornamental market in Purbalingga, Central Java, Indonesia

Kusmintarsih et al., 2023. Biodiversitas 24(7): 3766-3773.
Source taxon as published: Market-sourced ornamental shrimp reported as Neocaridina denticulata from Purbalingga, Central Java; no voucher-based identification was reported

Study shape: Abdominal tissue from ten visibly labelled market samples was extracted. A custom primer designed from a Neocaridina denticulata mitochondrial reference amplified an approximately 545-base-pair CO1 fragment. Bidirectional sequences were assembled, compared with one primary BLAST reference and placed in a neighbour-joining tree with selected GenBank sequences and one distant outgroup.

Experimental unit: One destructive tissue sample per visible colour entry, with ten sequence entries in the result tables; the paper does not report vouchers, specimen IDs, seller or aquarium clustering, replicate extractions, independent PCR confirmation or public accession numbers for the new sequences

Environment: Shrimp collected in August 2019 from the Purbalingga ornamental fish market and transported to a laboratory; seller, source farm, number of source aquaria and prior breeding history were not reported

Endpoints: CO1 PCR band, assembled fragment length, BLAST identity, neighbour-joining placement, reported pairwise genetic distance.

What it can support: Within this market sample and assay, the ten sequence entries labelled dark red, bright red, black, white, blue-black combinations or yellow were reported at 98.24 to 99.29 percent identity to the same Chinese N. denticulata mitochondrial reference, and the study reported zero pairwise distance among its sampled sequences. Visible colour labels therefore did not separate those sampled entries into different reported CO1 groups.

What it cannot support: This is a ten-specimen convenience sample from one market, not a survey of named global trade lines, farms, sellers or source populations. Collection wording does not resolve whether specimens came from one seller, aquarium, brood or colony. No morphological key, sex-based diagnostic structures, voucher deposition, extraction blank, PCR negative control, replicate extraction or new sequence accession is reported, so the specimen identity and sequence audit cannot be independently reconstructed from the article. The blue lane in Figure 2 has no band, the figure numbers lanes 1 to 10 while the text refers to samples 2 to 11, and Table 2 reports ten sequence entries without a standalone blue entry. The methods and Figure 3 describe a Jukes-Cantor tree, while Table 3 is labelled Kimura 2 parameter. The article reports 0.00 distance among the study entries even though their BLAST identities to the same reference vary from 98.24 to 99.29 percent, and its new sequences are not shown as deposited accessions. Low branch support appears across several reference relationships, the outgroup is a tunicate rather than a closer atyid, and the selected reference labels include disputed or inconsistent Neocaridina names. A short mitochondrial fragment records one maternally inherited locus; it cannot establish nuclear ancestry, pedigree, relatedness, genetic purity, line stability, inheritance, hybrid status or the species identity of another shrimp based on colour or a matching seller label.

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Morphology or taxonomy Direct Neocaridina evidence

Epibiont Cohabitation in Freshwater Shrimp Neocaridina davidi with the Description of Two Species New to Science, Cladogonium kumaki sp. nov. and Monodiscus kumaki sp. nov., and Redescription of Scutariella japonica and Holtodrilus truncatus

Maciaszek et al., 2023. Animals 13(10): 1616.
Source taxon as published: Neocaridina davidi

Study shape: One hundred shrimp from each of three locations within each source category were inspected individually in rostral, branchial, pereiopodal and pleopodal regions. Epibionts were isolated under clove-oil and ethanol sedation, identified morphologically at 500 to 1500x, and followed by an incompletely reported two-week quarantine observation. Prevalence models used source category and sex, microhabitat models used body region, and Spearman correlations assessed co-occurrence, egg production and molting.

Experimental unit: Individual examined shrimp nested within nine source locations and their transport bags; the reported individual-level GLMs do not describe source location or bag as a cluster or random effect

Environment: Nine hundred approximately 2.0 cm shrimp collected in November 2018 from three wild sites, three aquaculture-pond sources and three aquarium sources in Taiwan, then air-freighted in habitat water to Poland and inspected after a 10-hour acclimation in the transport-bag water

Endpoints: morphological identity and measurements, prevalence and mean intensity, co-occurrence, body-region distribution, egg-production association, molting association, observed cuticle traces and recolonization after molt.

What it can support: The authors distinguished Cladogonium kumaki, Monodiscus kumaki, Scutariella japonica and Holtodrilus truncatus, plus ciliates and rotifers. At least one recorded epibiont occurred on 688 of 900 shrimp and H. truncatus on 390 of 900. All four named taxa occurred in all four body regions with different distributions; H. truncatus was relatively associated with rostral and pereiopodal regions. Live H. truncatus and temnocephalids were observed leaving shed exuviae and seeking a host, sometimes recolonizing the nearby original shrimp.

What it cannot support: The source categories were observed, not assigned treatments, and are represented by only three locations each. Transport, ten-hour acclimation and microscopy handling may have changed organism abundance or location. Source-level clustering was not included in the reported GLMs, the sample was strongly female-skewed, and the sexing method was not stated. Morphological identification required microscopy and does not validate a phone-image diagnosis. Egg and molt analyses were correlational; the H. truncatus molt row reports rho -0.26 with p 0.847, an internally inconsistent combination for the surrounding interpretation. The quarantine allocation, denominator, water conditions, removal exposure and outcome measurements were not fully reported. Molting did not clear live worms, and the paper did not assign or compare a salt, medication or home-removal treatment. The sample is not prevalence for every seller, home colony or geographic trade route.

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Morphology or taxonomy Neocaridina identity evidence

First record of Scutariella japonica from Hokkaido, Japan, and notes on its host shrimp Neocaridina sp. aff. davidi

Kakui and Komai, 2022. Aquatic Animals 2022: AA2022-1.
Source taxon as published: Neocaridina sp. aff. davidi

Study shape: Associated worms and host shrimp were examined for a regional record and taxonomic identification.

Experimental unit: Collected host or associated worm specimen

Environment: Field-collected host and associated worm specimens from Hokkaido, Japan

Endpoints: worm identification, host association, regional occurrence.

What it can support: A method-based record of Scutariella japonica associated with the source host identification.

What it cannot support: Occurrence does not establish aquarium prevalence, severity, treatment efficacy or identification from a distant white shape.

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Morphology or taxonomy Neocaridina identity evidence

Rediscovery of a native freshwater shrimp Neocaridina denticulata and expansion of an invasive species in and around Lake Biwa

Onuki and Fuke, 2022. Conservation Genetics 23: 967-980.
Source taxon as published: Neocaridina denticulata and invasive Neocaridina davidi

Study shape: Genome-wide SNPs, mitochondrial data and morphology were combined across sites.

Experimental unit: Field-collected specimen nested within site

Environment: Nineteen field sites around Lake Biwa

Endpoints: species assignment, population structure, site occurrence.

What it can support: Native and invasive lineages can require combined genetic and morphological evidence to distinguish.

What it cannot support: Colour or a seller label cannot reproduce the identification, and occurrence does not create aquarium care limits.

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Field observation Direct Neocaridina evidence

First report of microsporidians in the non-native shrimp Neocaridina davidi from a temperate European stream

Schneider et al., 2022. Diseases of Aquatic Organisms 150: 125-130.
Source taxon as published: Neocaridina davidi; Enterocytozoon hepatopenaei and Microsporidium sp. EFB01 as named by the source

Study shape: Seventy-five ethanol-preserved adults were identified morphologically and screened for microsporidians by PCR from muscle tissue. Three randomly selected hosts received CO1 sequencing. Positive microsporidian amplicons were sequenced, compared with GenBank and placed in maximum-likelihood trees with 999 bootstrap replicates.

Experimental unit: Individual field-collected shrimp for PCR detection and carapace length; three randomly selected shrimp for host CO1 confirmation; one stream, one site and one sampling date for the population observation

Environment: One dip-net collection on 14 December 2021 from the Finkelbach, a German tributary of the River Erft, at 9 C, pH 7.65, dissolved oxygen 9.8 mg/L and reported conductivity 620 microS/cm

Endpoints: host identification, PCR-positive microsporidian count, sequence similarity, phylogenetic placement, sex, carapace length, visible epibiont and parasite examination.

What it can support: Four of 75 sampled shrimp were PCR positive for microsporidians. Three yielded sequences reported as 99.56 percent similar to Enterocytozoon hepatopenaei isolates, although only two were suitable for phylogenetic analysis; the fourth yielded the unresolved Microsporidium sp. EFB01 sequence. The three host CO1 sequences were 99.68 percent similar to one Taiwanese N. davidi reference.

What it cannot support: This is a one-date field detection from one German stream, not an aquarium-trade prevalence estimate or a transmission study. Only three hosts received molecular confirmation, and the paper does not report extraction blanks, PCR negative controls, product lengths, histology, tissue lesions, clinical signs, survival, transmission tests or treatment. PCR from muscle tissue cannot establish visible diagnostic characters or disease severity. The three E. hepatopenaei-positive shrimp were smaller than the 71 uninfected shrimp, but no supported inferential comparison was reported and three positives cannot establish growth suppression. Sequence similarity does not establish where either organism originated, that N. davidi introduced it, pathogenicity to native fauna, zoonotic risk or a home treatment.

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Field observation Direct Neocaridina evidence

Association of the alga Cladogonium sp. with a multifactorial disease outbreak in dwarf shrimp

Bauer et al., 2021. Diseases of Aquatic Organisms 146: 107-115.
Source taxon as published: Neocaridina davidi

Study shape: Twenty submitted shrimp were assessed with clinical examination, wet mounts, microbiology, histology and sequencing of green pleopodal structures.

Experimental unit: Submitted shrimp, tissue section or algal sample, depending on method

Environment: Diagnostic examination of an imported commercial group during a multifactorial outbreak

Endpoints: organism morphology, sequence placement, cuticle penetration, co-occurring microbes, outbreak mortality history.

What it can support: The green organism was placed near Trentepohliales and rhizoids were observed penetrating cuticle into subcutaneous tissue.

What it cannot support: The multifactorial case does not assign every death to the alga, establish prevalence or let a green phone image confirm the organism.

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Morphology or taxonomy Neocaridina identity evidence

Species diversity of freshwater shrimp in Henan Province, China, based on morphological characters and COI mitochondrial gene

Zhou et al., 2021. Ecology and Evolution 11: 10502-10514.
Source taxon as published: Freshwater shrimp including Neocaridina davidi and Neocaridina denticulata

Study shape: Male morphology, COI barcodes and several molecular-delimitation methods were compared across freshwater shrimp samples.

Experimental unit: Collected specimen and sequence, nested within sampling locality

Environment: About 1,200 field specimens from forty-six sites in Henan Province

Endpoints: morphological identification, COI haplotype, molecular operational taxonomic unit, genetic distance.

What it can support: Morphological variation and molecular partitions did not reduce to one simple visual species rule in the sampled freshwater shrimp.

What it cannot support: The survey does not authenticate aquarium trade names, grades, purity or lineage, and a COI similarity threshold is not a universal species test.

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System observation or method study Neocaridina identity evidence

Identification of Functional SSR Markers in Freshwater Ornamental Shrimps Neocaridina denticulata Using Transcriptome Sequencing

Huang et al., 2020. Marine Biotechnology 22: 772-785.
Source taxon as published: Supplier-sourced super red shrimp and chocolate shrimp labelled Neocaridina denticulata, plus a native black-shell strain used in marker development; no voucher or diagnostic identity method was reported

Study shape: RNA from three young super red and three young chocolate shrimp supplied one aggregate sequencing result per phenotype on an Illumina HiSeq 2000. Transcriptome SSR candidates were screened by PCR, sixteen amplified, and five polymorphic loci were reported across offspring from super red, chocolate and reciprocal crosses. Supplementary Figure S4 reports the largest eight females and males from each source strain as parents and three families per cross group.

Experimental unit: The transcriptome comparison appears to contain one pooled library per phenotype rather than independent biological libraries. The paper states 50 offspring in each of four cross groups, but Table 6 frequencies for both reciprocal hybrids occur in eighths and no individual genotype file, missing-call denominator, family allocation or family-aware analysis is supplied.

Environment: Separate supplier strains maintained in a flow-through breeding system at 22 to 25 C, pH 6.5 to 7.0 and GH 3 to 4; tank count, strain allocation and family history before the reported crosses were not defined

Endpoints: assembled transcriptome and annotation, phenotype-group expression counts, SSR discovery and PCR feasibility, allele and genotype counts, heterozygosity and polymorphic information content, genotype frequencies across four cross groups.

What it can support: The study developed five polymorphic transcriptome-derived SSR loci and found different genotype-frequency patterns among its sampled Larmax super red, chocolate and reciprocal-cross groups. The loci are candidates for population and cross validation within the sampled breeding material.

What it cannot support: One apparent pooled RNA library per phenotype cannot support replicated differential-expression inference. The study did not report standardized colour measurements, individual phenotypes, complete genotype denominators, parent-to-offspring assignments, Mendelian segregation, linkage, causal variants, blind classification or an independent validation population. The stated 200-offspring method conflicts with hybrid frequencies in eighths, and the claimed 4.31 percent single-marker and 0.0018 percent combined-marker misrecognition rates are not derived in the article or supplements and were not measured on a held-out test set. Multiple genotype tests were reported without a multiplicity correction and p values were printed as 0.000. These loci do not certify purity, pedigree, ancestry, diversity, Blue Dream, Sunkist, Bloody Mary or any other seller line, and super red is not evidence for equivalence to a current red trade name.

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Morphology or taxonomy Neocaridina identity evidence

Geographical and temporal origins of Neocaridina species in Taiwan

Han et al., 2019. BMC Genetics 20: 86.
Source taxon as published: Four Neocaridina species or provisional lineages from Taiwan

Study shape: COI sequences, phylogeographic structure and demographic models were used to infer species boundaries and colonization histories.

Experimental unit: Collected specimen, haplotype and sampled locality depending on analysis

Environment: Four hundred seventy-nine specimens from thirty-five Taiwanese localities

Endpoints: COI lineage, haplotype structure, species delimitation, colonization-time inference.

What it can support: The sampled Taiwanese Neocaridina contained multiple geographically structured lineages with different inferred histories.

What it cannot support: Phylogeographic inference does not establish the ancestry, relatedness, purity or species of a commercial colour morph.

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Field observation Neocaridina identity evidence

Life-history traits and ecological characteristics of the ornamental shrimp Neocaridina denticulata, recently introduced into the freshwater systems of Israel

Levitt-Barmats et al., 2019. Aquatic Invasions 14(4): 684-702.
Source taxon as published: Neocaridina denticulata, with identity uncertainty discussed by the authors

Study shape: Field occurrence, morphology and mitochondrial markers were combined with an unreplicated laboratory lineage; 18 third-generation larvae were separated for individual molt and growth observations.

Experimental unit: Field specimen or sampling site for field endpoints; individual jar for 18 third-generation growth observations

Environment: Thirty Israeli field locations plus laboratory observation at 20 to 25 C across three generations

Endpoints: field occurrence, morphology, COI and 16S sequences, embryo count, age at first ovigerous stage, molt interval, growth.

What it can support: The study documents a wide field-occurrence range and follows known-hatch third-generation individuals for molt and growth observations over 49 weeks under one laboratory protocol.

What it cannot support: Taxonomic placement within the complex remained uncertain, field occurrence is not a water optimum, and losses plus an incomplete growth series do not provide a replicated hatch-to-death lifespan distribution.

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Morphology or taxonomy Direct Neocaridina evidence

Neocaridina fonticulata, a new land-locked freshwater shrimp from Hengchun Peninsula, Taiwan (Decapoda, Caridea, Atyidae)

Shih, Cai and Chiu, 2019. ZooKeys 817: 11-23.
Source taxon as published: Neocaridina fonticulata Shih, Cai and Chiu, 2019, described from type and additional material collected at Sheding, Kenting, southern Taiwan

Study shape: The authors described a holotype, multiple paratype lots and additional field material using external morphology and drawings, compared material of Neocaridina ikiensis, measured five eggs from each of four ovigerous females, and analyzed a 658-base-pair mitochondrial COI segment from four Sheding specimens with Bayesian and maximum-likelihood phylogenetic methods and pairwise distances.

Experimental unit: Individual deposited specimen for morphology, four source shrimp for COI that yielded one reported haplotype, and 20 eggs nested within four ovigerous females for egg measurements

Environment: A leaf-litter layer in a small, slow-flowing headwater stream beside a spring outlet on a limestone hill at Sheding, Kenting; the paper reports about 25 C water, pH 7.06 to 7.16 and dissolved oxygen 7.33 to 7.70 mg/L at the collection site, while examined specimens were preserved in 70 to 95 percent ethanol

Endpoints: type locality and deposited material, rostrum and appendage diagnostic characters, male first and second pleopod morphology, egg dimensions, live colour description, COI haplotype and phylogenetic placement, pairwise mitochondrial distance.

What it can support: The combined type material, comparative morphology and sampled COI evidence support recognizing N. fonticulata as a distinct Neocaridina species in the reviewed 2019 treatment. Diagnostic evidence includes the rostrum, pereiopods and male first and second pleopods. The four sequenced shrimp produced one 658-base-pair COI haplotype, LC427866, and the smallest reported K2P distances to sampled N. ketagalan and N. saccam were 5.42 and 5.43 percent.

What it cannot support: The species was then known only from one Sheding locality, so the report does not establish its complete distribution, population size, seasonal habitat range or conservation status; the authors prediction that it may occur in eastern Taiwan was not a sampled result. Several diagnostic characters require an adult male, dissection and specialist comparison, so body colour or one aquarium photograph cannot identify the species or distinguish it from a trade morph. The molecular result used four shrimp, one mitochondrial haplotype and no nuclear locus, cross, genomic ancestry test or blind identification validation. Mitochondrial separation in this sample does not authenticate a seller label, certify a colour line, prove reproductive isolation or identify another animal by appearance. Site temperature, pH and dissolved oxygen are locality observations without temporal replication or an assigned comparison, not aquarium optima, tolerances or care targets. Aquarium-held photographs were for observation after collection, not a husbandry experiment.

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Related source material: GenBank COI accession LC427866

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Field observation Direct Neocaridina evidence

First record and DNA barcodes of the aquarium shrimp, Neocaridina davidi, in Central Europe from thermally polluted River Oder canal, Poland

Jablonska et al., 2018. Knowledge and Management of Aquatic Ecosystems 419: 14.
Source taxon as published: Neocaridina davidi identified by morphology and a 610-base-pair COI fragment

Study shape: Qualitative hydrobiological hand-net samples collected field shrimp in July 2003, November 2013 and June 2017. Morphology was compared with published descriptions. COI sequences from field and amateur-aquarium animals were aligned with five Taiwan and Hawaii reference sequences, assigned to haplotypes and placed in a neighbour-joining tree.

Experimental unit: Collected animal nested within three field collection events and one aquarium comparison source. Only June 2017 reports standardized effort: one square metre sampled for approximately 15 minutes. The 2003 formaldehyde-preserved sample was unavailable for COI analysis.

Environment: A roughly 4.5 km artificial canal connected to the lower River Oder near Gryfino, Poland, receiving heated Dolna Odra Power Station cooling water, with fine sand and mud substrate, partial concrete banks and submerged vegetation

Endpoints: field occurrence by year, sex and ovigerous status, body length and diagnostic morphology, 610-base-pair COI sequence, haplotype assignment, neighbour-joining placement.

What it can support: Fifteen field shrimp were found in three positive collection years spanning 2003 to 2017, including one ovigerous female in November 2013. Morphology and seven field COI accessions supported N. davidi identity. The seven field and six amateur-aquarium sequences generated by the study shared one COI haplotype, supporting close mitochondrial similarity within that comparison.

What it cannot support: The three positive years were not continuous monitoring, and qualitative sampling with mostly unreported effort cannot estimate abundance, density, occupancy, population trend or detection probability. One ovigerous female supports reproductive condition, not observed hatching, recruitment or proof that local reproduction maintained the records. The authors explicitly retained repeated yearly introductions as an alternative. The canal was artificially heated; the paper reports 27 to 29 C in June-July and 15 C in November but no winter minimum, winter sample, thermal time series or comparison site. It cannot establish cold tolerance, winter survival, a home temperature range or a 27 to 28 C breeding optimum. A shared short mitochondrial haplotype does not trace an aquarium source, seller, release event, nuclear ancestry or transfer direction. The study measured no survival, growth, water chemistry beyond temperature, ecological impact, pathogen transfer or control outcome. Failure to find a threat is not proof of no impact, and field occurrence never makes release safe.

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Field observation Direct Neocaridina evidence

Life history of an invasive freshwater shrimp Neocaridina davidi in the Tomoe River

Mitsugi and Suzuki, 2018. Crustacean Research 47: 9-16.
Source taxon as published: Neocaridina davidi

Study shape: Monthly field samples were used for morphology, size-frequency cohorts and inferred life history.

Experimental unit: Monthly river sample

Environment: Tomoe River, eastern Japan, sampled monthly for one year

Endpoints: body and carapace length, sex characters, cohort structure, inferred lifespan.

What it can support: Defined measurement landmarks and field cohort estimates for the sampled population.

What it cannot support: Individuals were not marked from hatch to death, and the inferred lifespan is not an aquarium average or guarantee.

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Morphology or taxonomy Direct Neocaridina evidence

First report of the branchiobdellidan Holtodrilus truncatus (Annelida: Clitellata) found on the freshwater atyid shrimp Neocaridina sp. from Korea

Ahn and Min, 2016. Journal of Species Research 5(3): 459-462.
Source taxon as published: Wild stream shrimp identified only as Neocaridina sp.; no host voucher, diagnostic method or molecular host identification reported

Study shape: The authors removed worms from preserved host exoskeletons under a stereomicroscope, described external and internal morphology, deposited examined material at Inha University and the National Institute of Biological Resources, and extracted whole-body DNA from one worm for partial mitochondrial COI amplification and sequencing.

Experimental unit: An unreported number of Neocaridina hosts and removed worms across three collection dates; one whole worm for the 674-base-pair COI sequence; three National Institute of Biological Resources voucher identifiers were listed

Environment: Hand-net collections from Andeok Valley, Jeju-do Province, South Korea on 23 June 2010, 23 August 2015 and 18 May 2016; hosts were preserved directly in 95 percent ethanol at the collection site

Endpoints: geographic and host occurrence, whole-body and jaw morphology, body length, voucher deposition, partial mitochondrial COI sequence.

What it can support: The record establishes morphologically identified H. truncatus on wild Neocaridina sp. at one South Korean stream across material dated in 2010, 2015 and 2016. Described characters included a transparent terete body under 2 mm, no trunk appendages, a posterior sucker about the diameter of the head region and paired jaws with a 7/7 dental formula. Three NIBR voucher identifiers and the first reported 674-base-pair COI sequence for the genus, GenBank KX683299, provide checkable taxonomic anchors.

What it cannot support: The paper does not state the number of hosts collected, hosts carrying worms, worms examined per date, worms per host, sampling effort or whether absence was assessed, so three dated collections do not estimate prevalence, persistence between dates or geographic range. The host remained Neocaridina sp. without a reported voucher or molecular identification. Although examined material was deposited at two institutions, only three NIBR identifiers were listed and the paper does not map individual morphology, image, sequence and voucher records. The single COI sequence created a barcode reference but was not compared with an existing conspecific sequence or used in a phylogenetic or species-delimitation analysis. Immediate ethanol preservation precluded live attachment, movement and host-response observations. The study measured no lesion, respiration, molting, growth, reproduction, mortality, transmission, origin, treatment, recurrence or host safety. It cannot establish N. davidi prevalence, aquarium-trade origin, harmlessness, a phone-image diagnosis, a quarantine duration or a treatment protocol.

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Related source material: Korea Citation Index open article record and licensed PDF

Used in: /care/health, /care/quarantine, /care/anatomy

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System observation or method study Direct Neocaridina evidence

Distribution of Holtodrilus truncatus, a Branchiobdellidan Ectosymbiotic on Atyid Shrimps in the Kii Peninsula, Western Japan, with Reference to Salinity Tolerance and Host Preference

Tanaka, Wada and Hamasaki, 2016. Zoological Science 33(2): 154-161.
Source taxon as published: Holtodrilus truncatus; field hosts included Paratya compressa, Caridina leucosticta, Caridina multidentata, Caridina typus and Neocaridina denticulata

Study shape: The field survey standardized dip-net sampling at ten waterside areas per site and repeated one river seasonally. The salinity study exposed 24, 20, 30, 25 and 12 host-removed worms to nominal 0, 0.5, 1, 1.5 and 3 percent salinity without food, with observation intervals that shortened as salinity rose. Host-choice tests placed one worm with a size-matched pair of Paratya compressa, Caridina leucosticta or Caridina multidentata for 40, 36 and 39 pairwise replicates.

Experimental unit: Field host shrimp for occurrence endpoints; an incompletely reported small plastic tank holding two or five isolated worms for salinity exposure; and one worm with one two-shrimp species pair for each host-choice replicate

Environment: Field collections at one to eight sites in each of 26 rivers on the Kii Peninsula, Japan, plus 22 to 27 C freshwater laboratory salinity and two-host choice tests

Endpoints: river and host occurrence, prevalence and intensity on Paratya compressa, host body location, Paratya compressa egg number association, isolated-worm attachment-defined survival, selected host in pairwise choice.

What it can support: Holtodrilus truncatus occurred in 10 of 26 surveyed rivers and on five atyid host species. The only two examined N. denticulata were both recorded with the worm, which establishes occurrence but not prevalence. Isolated-worm survival declined with increasing nominal salinity, including significantly lower survival at 0.5 than 0 percent. In pairwise tests that excluded Neocaridina, worms selected P. compressa over both Caridina species and C. leucosticta over C. multidentata. Cohabitation was not associated with egg number in the measured P. compressa model.

What it cannot support: The direct Neocaridina result is two field animals, not a representative sample. No Neocaridina entered the salinity, host-choice or egg-number analyses. Worms were removed after the host carapace was detached, so salinity was tested on isolated organisms rather than attached worms or living host shrimp. The work measured no treatment efficacy on a host, shrimp survival, sublethal host effect, recurrence or safety margin. Worms shared exposure containers in groups of two or five, the number of independent tanks was not reported, checking frequency differed by concentration, no food was provided, and floating or failure to attach was classified as death. Nominal salinity tolerance cannot validate a salt dip, 30-second exposure, host-safe dose or Neocaridina host preference.

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Controlled experiment Neocaridina identity evidence

Genomic Sequence and Experimental Tractability of a New Decapod Shrimp Model, Neocaridina denticulata

Kenny et al., 2014. Marine Drugs 12(3): 1419-1437.
Source taxon as published: Commercially sourced red-patched animals identified as Neocaridina denticulata denticulata; no voucher, morphology or molecular host-identification method reported

Study shape: One adult supplied a 100-base-pair paired-end Illumina HiSeq2000 library with 364,013,140 reads. ABySS assembly used k-mer 51 and an assumed approximately 3-gigabase genome. A separate method experiment tested ten adults at each of five MS-222 concentrations from 1000 to 3000 mg/L and varied bath duration from 10 to 40 minutes.

Experimental unit: One commercially sourced adult for the nuclear and mitochondrial sequence resource. Individual adults were the anaesthesia units, but duration cells shown in Figure 8 contained only one to five recoverable animals and some concentration-duration combinations were omitted after insufficient induction or mortality.

Environment: Laboratory stock held in a recirculating freshwater aquarium at about 25 C; one starved and dissected adult supplied genomic DNA, while separate adults entered aerated MS-222 bath trials

Endpoints: draft contig metrics, core eukaryotic gene hits, mitochondrial genome recovery, candidate developmental gene-family hits, Daphnia protein-sequence matches, anaesthesia induction, first movement, complete recovery, three-day mortality follow-up.

What it can support: The short-read resource recovered a 15,565-base-pair mitochondrial genome and recognizable hits for 455 of 458 CEGMA core genes at the stated threshold. It also demonstrates that MS-222 concentration and bath duration changed induction and recovery under the tested laboratory method.

What it cannot support: The 99.3 percent result is a core-gene hit rate, not 99.3 percent whole-genome completeness. The draft contained 3,346,358 contigs, an N50 of 400 base pairs and 1.284 gigabases of assembled sequence against an assumed approximately 3-gigabase genome; the authors explicitly described poor recovery of non-coding regions and manually removed three bacterial-like contigs. One unvouchered seller animal cannot establish population variation, named-line ancestry, pedigree, purity, phenotype prediction or a consumer genetic test. The 3,750 putatively crustacean-specific matches depend on database content and an E-value cutoff and do not establish unique function. The anaesthesia cells were small, some animals died at 3000 mg/L and one of three died after 30 minutes at 2000 mg/L, so the protocol is not a home treatment, transport method, euthanasia instruction or general welfare guarantee.

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System observation or method study Direct Neocaridina evidence

Microhabitat distribution and behaviour of Branchiobdellidan Holtodrilus truncatus found on the freshwater shrimp Neocaridina spp. from the Sugo River, Japan

Niwa et al., 2014. Central European Journal of Biology 9(1): 80-85.
Source taxon as published: Wild Sugo River shrimp identified only as Neocaridina spp.; the catch could include native N. denticulata denticulata and imported Neocaridina lineages

Study shape: The authors collected 271 host shrimp across nine years, mapped H. truncatus body locations on 141 hosts in 2011, measured 23 cocoons, observed 15 host-removed worms from 14 shrimp in no-added-food survival containers, and placed five removed worms sequentially with a reported pool of 28 potential host shrimp across several taxa.

Experimental unit: Individual host for mapped attachment location; individual cocoon for diameter; nominally individual host-removed worm, although only 13 of 15 worms receive a reported container and survival range; and an unresolved sequence of five worms exposed one host at a time in the host-exchange demonstration

Environment: Field collections at three Sugo River stations from 2003 to 2011 plus laboratory observations in source river water, aerated aquaria, individual bottles, dishes and 100 mL vials

Endpoints: host body location, cocoon diameter and embryo count, observed hatching and gill-chamber entry, days survived after host removal, attachment or predation during host exchange, movement from deteriorating to surviving captive hosts.

What it can support: Among 141 mapped wild hosts, reported H. truncatus locations were 55.3 percent between the first pleopod and fifth pereiopod, 17.0 percent on the carapace, 15.6 percent at the eye base, 8.5 percent on the antennule and 3.6 percent around the egg mass. Twenty-three cocoons measured 0.58 to 0.76 mm, and the largest observed cocoon contained 14 developing worms. Ten worms in 100 mL vials survived 7 to 46 days and three in dishes survived 12 to 21 days after host removal without added food. In the host-exchange observation, all five supplied worms attached to Neocaridina hosts within three hours.

What it cannot support: Host shrimp were resolved only to Neocaridina spp. in a river where native and introduced lineages were discussed, so the findings are not species-specific N. davidi evidence. The 271 total catch, 152 animals mentioned in the attachment procedure and 141 mapped hosts are not fully reconciled, station and date denominators are missing and the location percentages do not state whether each host contributed one location or all worms were counted. No molecular confirmation of host or worm identity was reported in this article. The survival containers differed in volume, light and temperature, two of 15 worms are absent from the reported ranges, ages were unknown, water was not renewed or analytically described, death criteria were not stated and there was no fed or host-present control. The five-worm host exchange omitted exposure order, reuse mapping, independent replication, container details and complete outcomes for 28 potential hosts. Disappearance under an opaque crayfish carapace was interpreted as migration rather than directly confirmed. Claims that egg-bearing hosts hatched healthy young had no defined denominator, comparison or follow-up. Observed migration from deteriorating hosts does not establish transmission probability or a quarantine duration. The study measured no controlled shrimp lesion, respiration, growth, reproduction, mortality causation, treatment efficacy, recurrence or host safety and cannot validate predatory tankmates, forced host deterioration, worm collection, medication or a fixed isolation period.

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Related source material: German National Library open full-text copy

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Morphology or taxonomy Adjacent biological evidence

A comprehensive molecular phylogeny of Dalytyphloplanida reveals multiple escapes from the marine environment and origins of symbiotic relationships

Van Steenkiste et al., 2013. PLOS ONE 8(3): e59917.
Source taxon as published: Dalytyphloplanida flatworms, not Neocaridina

Study shape: Complete 18S and partial 28S rDNA sequences were analysed with maximum-likelihood and Bayesian phylogenetic methods.

Experimental unit: Taxon sequence or specimen represented in the phylogeny

Environment: Molecular phylogenetic analysis across marine, freshwater and symbiotic flatworms

Endpoints: phylogenetic placement, freshwater transition reconstruction, symbiotic-lifestyle reconstruction.

What it can support: Flatworm lineages and life strategies cannot be inferred from a generic worm-like aquarium silhouette alone.

What it cannot support: The phylogeny does not identify a phone-video organism, demonstrate predation or determine whether an observed flatworm threatens shrimp.

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Used in: /care/pests, /care/health

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Morphology or taxonomy Direct Neocaridina evidence

Neocaridina iriomotensis, a new species of land-locked freshwater shrimp (Crustacea: Decapoda: Atyidae) from Iriomote Island, southern Ryukyus, Japan

Naruse, Shokita and Cai, 2006. Proceedings of the Biological Society of Washington 119(1): 25-31.
Source taxon as published: Neocaridina iriomotensis Naruse, Shokita and Cai, 2006, described from the upper reaches of Nishifunatsuki in the Nakama River, Iriomote Island, Japan

Study shape: The listed material contains one male holotype, 41 paratypes and 49 non-type specimens collected on seven dates from November 1999 through June 2000. Only specimens above 4 mm carapace length were used for the description. Characters were drawn with a camera lucida and measured to 0.01 mm; proportional summaries report medians, ranges and varying sample sizes from 73 to 83. The treatment compared the new species with published N. anhuiensis and topotypic N. ishigakiensis morphology.

Experimental unit: Individual field specimen for morphological ratios and qualitative seasonal comparison; the paper does not report the female or egg denominator underlying its egg-size and 21-to-82 clutch ranges

Environment: Field-collected from the lower part of a headwater reach in the upper Nakama River, described as about 5 to 10 m wide, approximately 1 m deep and slow-flowing, where shrimp occurred on aquatic vegetation and tree roots with Macrobrachium shokitai; no water chemistry or temperature was reported

Endpoints: deposited type and non-type material, rostrum armature and length, pterygostomian spine, pereiopod proportions, season-associated third-pereiopod form, male first and second pleopod morphology, egg dimensions and reported clutch range, habitat and distribution description.

What it can support: The 2006 morphological treatment supports recognizing N. iriomotensis within its stated species concept and distinguishes its sampled material from N. anhuiensis and N. ishigakiensis using combinations of rostrum, pterygostomian-spine, pereiopod and male pleopod characters. It also documents that the third pereiopod showed sex-associated form in summer specimens but no sexual difference in winter specimens, demonstrating that season can affect the availability of an identification character.

What it cannot support: All listed material came from one named upper-reach locality in the Nakama River, and qualitative wording that the shrimp was common lacks sampling effort and a population denominator. No molecular analysis was included; proposed headwater ecomorph populations had intermediate rostrum lengths and were retained only tentatively pending molecular and ecological study. Published comparisons relied partly on earlier descriptions rather than a balanced multi-population validation, character sample sizes varied because not every specimen contributed every ratio, and no blind key-performance test was conducted. Egg and clutch ranges lack female, clutch and egg denominators. The paper reports no water temperature, pH, hardness, conductivity, dissolved oxygen, nitrogen measurements, diet, culture comparison or aquarium outcome. It cannot identify an aquarium animal from colour or one photograph, authenticate a seller line, prove genetic separation or reproductive isolation, map the complete species range, establish population abundance, or supply a care target, breeding forecast or seasonal aquarium rule.

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Morphology or taxonomy Adjacent biological evidence

A revision of the Caridina serrata species group, with descriptions of five new species (Crustacea: Decapoda: Caridea: Atyidae)

Cai and Ng, 1999. Journal of Natural History 33(11): 1603-1638.
Source taxon as published: Caridina serrata species group, including Lam Tsuen material previously reported as Neocaridina serrata

Study shape: Published descriptions, neotypes and re-examined material were compared using rostral formula, stylocerite, pereiopod, pleopod and other morphological characters across the Caridina serrata group.

Experimental unit: Examined specimen and collection lot; the Lam Tsuen conclusion used later material from the same river population, including Dudgeon-collected lots, rather than a reported re-examination of every animal sampled for the 1985 population study

Environment: Museum and field-collected freshwater shrimp material from southern China, including Lam Tsuen River and other Hong Kong localities

Endpoints: taxonomic diagnosis, genus placement, species reassignment, morphological distinction, locality record.

What it can support: The Lam Tsuen population published by Dudgeon in 1985 and 1987 as Neocaridina serrata was reassigned to Caridina cantonensis. The revision also concluded that neither C. cantonensis nor C. serrata belongs in Neocaridina because the distal half of the male first pleopod lacks the Neocaridina condition.

What it cannot support: The revision does not make every aquarium animal sold as C. cantonensis taxonomically verified, resolve all later Caridina species-group relationships or convert Dudgeon field results into captive care guidance. It did not re-run the 1985 population study, and its reassignment does not establish temperature, lifespan, maturity, clutch or abundance rules for N. davidi.

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Supporting authorities

These sources define a measurement, professional practice, regulatory context, maintained taxonomic record or product instruction. They are part of the guide source base, but they are not counted as biological evidence records.

Source and roleWhat it supportsBoundary
General Information and Guidelines for Field-Measured Water-Quality Properties
U.S. Geological Survey
Analytical method or chemistry authority
Calibration, quality assurance, field records and method-context principles for measured water properties.
Used in: /care/testing
A professional field manual does not validate a specific hobby kit or establish a Neocaridina water target.
Open the authoritative source.
Specific Conductance
U.S. Geological Survey
Analytical method or chemistry authority
Professional measurement, calibration and reporting context for specific conductance.
Used in: /care/testing, /care/parameters
It does not turn conductivity or a converted TDS value into ionic composition or a shrimp-health verdict.
Open the authoritative source.
Measurement of pH
U.S. Geological Survey
Analytical method or chemistry authority
Professional pH calibration, sampling and reporting context.
Used in: /care/testing, /care/parameters
It does not validate every aquarium meter, reconstruct an old sample or define a species optimum.
Open the authoritative source.
Find a Fish Vet
American Association of Fish Veterinarians
Professional practice guidance
A directory for locating aquatic-veterinary practices in North America.
Used in: /care/chemical-safety, /care/health
A listing does not establish that a clinician accepts aquatic invertebrates or can diagnose a case remotely.
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Effluent Monitoring Procedures: Nutrients
U.S. Environmental Protection Agency
Analytical method or chemistry authority
Formula-mass conversions between nitrogen-basis and whole-ion nitrite and nitrate reporting.
Used in: /care/nitrogen, /care/testing
A conversion preserves chemical amount; it does not create a Neocaridina toxicity threshold.
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Definition and Procedure for the Determination of the Method Detection Limit, Revision 2
U.S. Environmental Protection Agency
Analytical method or chemistry authority
The defined scope and calculation of an EPA method detection limit.
Used in: /care/testing, /care/nitrogen
The procedure does not automatically apply to a hobby comparator, strip or unvalidated digital meter.
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Freshwater Aquatic Life Ambient Water Quality Criteria for Ammonia
U.S. Environmental Protection Agency
Analytical method or chemistry authority
Freshwater ammonia equilibrium calculations and the environmental-criteria framework.
Used in: /care/nitrogen, /care/acclimation
National ambient criteria are not Neocaridina-specific aquarium limits or transfer instructions.
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A Primer on Water Quality
U.S. Geological Survey
Analytical method or chemistry authority
General water-quality context, including evaporation and dissolved-material concentration.
Used in: /care/water-changes, /care/parameters
It does not prescribe an aquarium top-off schedule, water-change percentage or shrimp parameter range.
Open the authoritative source.
Shipping Practices in the Ornamental Fish Industry
USDA, NOAA and Hawaii Sea Grant
Professional practice guidance
Documented ornamental-fish packaging and receiving practices.
Used in: /care/acclimation, /care/quarantine
Fish-industry practice is extrapolation and does not validate a Neocaridina transfer rate or package.
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Don't Let it Loose, California!
California Department of Fish and Wildlife
Regulatory or ecological-risk authority
Current California prevention and responsible-rehoming guidance for unwanted aquatic organisms.
Used in: /care/surplus, /care/species
The page is not a species experiment and does not replace a permit, statute or case-specific agency answer.
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AVMA Guidelines for the Euthanasia of Animals: 2020 Edition
American Veterinary Medical Association
Professional practice guidance
General professional euthanasia principles and taxon-specific evidence boundaries.
Used in: /care/surplus, /care/health
The document does not provide a validated, humane home protocol for Neocaridina davidi.
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About Water Disinfection with Chlorine and Chloramine
U.S. Centers for Disease Control and Prevention
Professional practice guidance
The distinction between chlorine and chloramine in public drinking-water disinfection.
Used in: /care/chemical-safety, /care/water-changes
It does not validate an aquarium conditioner dose, diagnose exposure or establish a shrimp-safe residual.
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CADDIS: Ammonia
U.S. Environmental Protection Agency
Analytical method or chemistry authority
Environmental ammonia measurement, speciation and pH-and-temperature context.
Used in: /care/water-changes, /care/testing, /care/nitrogen
General environmental guidance does not establish a Neocaridina chronic limit or aquarium diagnosis.
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CADDIS: Nutrients
U.S. Environmental Protection Agency
Analytical method or chemistry authority
Nitrogen-analyte, reporting-basis and analytical-method distinctions.
Used in: /care/testing, /care/nitrogen
It does not make unlike analytes interchangeable or set a home-aquarium action point.
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Aquatic Life Criteria: Ammonia
U.S. Environmental Protection Agency
Regulatory or ecological-risk authority
The U.S. ambient aquatic-life criteria framework and ammonia chemistry context.
Used in: /care/acclimation, /care/nitrogen
Ambient criteria are not a direct Neocaridina transfer trial, home target or treatment rule.
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Aquatic Life Criteria - Copper
U.S. Environmental Protection Agency
Regulatory or ecological-risk authority
Copper essentiality, toxicity and the national ambient-water criteria framework.
Used in: /care/chemical-safety
The framework is not a Neocaridina product limit, food-label rule or diagnosis from mortality timing.
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Copper Biotic Ligand Model
U.S. Environmental Protection Agency
Analytical method or chemistry authority
Water-chemistry inputs that alter modeled copper bioavailability.
Used in: /care/chemical-safety, /care/testing
The model does not turn one total-copper reading into a Neocaridina effect or validate a home treatment.
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Procedures for the quarantine of live aquatic animals: a manual
Food and Agriculture Organization
Professional practice guidance
General risk-based quarantine, movement and biosecurity principles for aquatic animals.
Used in: /care/quarantine, /care/health
The manual does not establish a universal Neocaridina quarantine duration or prophylactic treatment.
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Ecological Risk Screening Summary: Cherry Shrimp
U.S. Fish and Wildlife Service
Regulatory or ecological-risk authority
A federal ecological-risk synthesis for Neocaridina davidi occurrence and establishment potential.
Used in: /care/surplus, /care/species
A screening summary is not a release permit, state law or proof of impact at every locality.
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Cherry Shrimp Neocaridina davidi (Bouvier 1904)
University of Florida IFAS Extension
Professional practice guidance
A peer-reviewed extension synthesis of common aquarium labels, gross anatomy, direct development and selected introduced-population records.
Used in: /care/species, /care/surplus
This secondary species profile is not a care experiment. It provides no aquarium parameter table, its morph labels do not establish line ancestry, and its unreferenced size, maturity, molting and cleanup statements do not create universal husbandry rules.
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Breathing Bags product instructions
Kordon
Manufacturer instruction
The intended handling and gas-exchange constraints for the named packaging film.
Used in: /care/acclimation
Manufacturer instructions are not independent Neocaridina transport evidence or proof of a package configuration.
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Neocaridina davidi (Bouvier, 1904), AphiaID 1579333
DecaNet editors
Maintained reference database
The maintained taxonomic authority record and currently accepted database treatment.
Used in: /care/species, /care/genetics
A database record does not identify a photographed animal, validate a trade line or erase competing published treatments.
Open the authoritative source.
Aquatics: Management of Animal Care and Use Programs
National Academies
Professional practice guidance
General aquatic-system management and ammonia-equilibrium context.
Used in: /care/acclimation, /care/nitrogen
Institutional animal-care guidance is not a Neocaridina transfer-rate or home-acclimation experiment.
Open the authoritative source.
Chemical Metrology
National Institute of Standards and Technology
Analytical method or chemistry authority
Measurement validation, matrix, traceability and uncertainty principles.
Used in: /care/testing
General metrology principles do not validate a specific aquarium result or assign biological meaning.
Open the authoritative source.
Conductivity meter manual
National Institute of Standards and Technology
Analytical method or chemistry authority
Conductivity measurement, temperature compensation and TDS-conversion-factor context for the named instrument.
Used in: /care/acclimation, /care/parameters, /care/testing
A conversion factor does not reveal dissolved composition, hardness or a Neocaridina optimum.
Open the authoritative source.
Alkalinity and Water
U.S. Geological Survey
Analytical method or chemistry authority
General acid-neutralizing-capacity and buffering context.
Used in: /care/parameters, /care/testing
Alkalinity is not a direct pH control, carbonate inventory or species optimum without method and water context.
Open the authoritative source.
Hardness of Water
U.S. Geological Survey
Analytical method or chemistry authority
The definition and conventional reporting of calcium-and-magnesium water hardness.
Used in: /care/parameters, /care/molting, /care/testing
Hardness does not reveal every ion, diagnose a molt or establish a Neocaridina optimum.
Open the authoritative source.
Aquatic Animal Health Code, Chapter 4.1: Biosecurity for aquaculture establishments
World Organisation for Animal Health
Professional practice guidance
General establishment-level aquatic biosecurity, movement and risk-management principles.
Used in: /care/quarantine, /care/health
The code does not certify a home colony pathogen-free or prescribe one Neocaridina quarantine interval or disinfectant protocol.
Open the authoritative source.
Crossmark and publication updates metadata
Crossref
Maintained reference database
Crossref documents public metadata for publisher-registered corrections, retractions and other updates, supplemented by Retraction Watch records in its REST API.
Used in: /research/maintenance#source-integrity
Absence of an update in one Crossref query does not prove that a work is unchanged, because publisher participation, metadata coverage, query matching, non-DOI sources and in-place revisions can be incomplete.
Open the authoritative source.

Questions the evidence does not answer yet

These are current search gaps, not proof that no study exists. Each boundary is dated to this corpus review. A useful gap also says what evidence would change the answer.

What are chronic ammonia and nitrite no-effect ranges for Neocaridina?

Current boundary: A direct N. davidi thesis provides a 96-hour acute juvenile experiment. An official abstract for a restricted 2007 N. denticulata thesis reports chronic total-ammonia growth and reproductive comparisons, but its complete methods and results are unavailable. Neither source establishes a chronic operating range, and no controlled chronic nitrite study was located.

What would answer it: The complete 2007 thesis methods and results plus independent replicated chronic ammonia and nitrite exposures across life stages with measured chemistry, exact nitrogen basis, confidence intervals and nonlethal endpoints.

Related guides: /care/nitrogen, /care/cycling

What photoperiod, intensity and spectrum support Neocaridina welfare and colony outcomes?

Current boundary: An open 2018 thesis found colour-associated differences in short-term lit-dish occupancy, but did not equalize light output, fully specify the repeated-measures model or measure welfare and long-term colony outcomes. Two recent studies also report short colour-specific responses after eyestalk gene knockdown, with incomplete public methods. None establishes an aquarium spectrum, intensity or photoperiod.

What would answer it: Replicated intact-aquarium comparisons that measure irradiance or illuminance at animal level, hold shelter, plants, algae, feed and temperature constant, and follow behaviour, molting, growth, survival and reproduction across life stages.

Related guides: /care/habitat, /care/behaviour, /care/molting

Which identified and conditioned leaf litters improve Neocaridina outcomes in home-like systems?

Current boundary: One abstract-level N. davidi study reports leaf choices and normalized consumption. A fully reviewed N. denticulata microcosm study separates direct shrimp contact from fecal contact on one cattail preparation and measures litter breakdown, enzymes and water chemistry, but not intake, dietary adequacy or long-term shrimp outcomes. The taxa, litter species and endpoints differ, and neither record establishes disease benefit or a replacement interval.

What would answer it: Replicated aquarium comparisons across identified litter species and conditioning histories, with a formulated-food baseline, non-consumption mass-loss controls, measured intake, water chemistry and shrimp survival, growth, reproduction and health endpoints.

Related guides: /care/habitat, /care/feeding, /care/algae

Which complete diet and ration combinations support Neocaridina across the full colony life cycle?

Current boundary: Direct studies compare particular commercial products, formulated ingredient replacements, live feeds, biofilm systems and feeding frequencies. Their formulations, physical forms, ration methods, life stages and endpoints differ, so no study establishes one complete commercial food, pellet count, live feed or nutrient target for every colony.

What would answer it: Replicated aquarium comparisons with fully reported stable formulations, dry-matter ration, measured intake and leaching, life-stage and sex denominators, water chemistry, survival, growth, molting, reproduction, offspring and long-term health endpoints.

Related guides: /care/feeding, /care/growth, /care/breeding, /care/colours

Which package combinations protect Neocaridina during real transport?

Current boundary: One wet closed-transport duration experiment and one atypical dry chilled experiment measured direct Neocaridina outcomes, but neither compared or validated the Molt & Moss breather-bag package, density, weather gate and receiving protocol.

What would answer it: Versioned package trials with internal temperature, bag chemistry, density, transit history and survival through at least seven days.

Related guides: /care/acclimation, /care/temperature

Which treatment doses are effective and safe for confirmed Neocaridina health agents?

Current boundary: One three-aquarium conference abstract reported complete Deugesia removal and three-day survival of all 12 shrimp after mebendazole or albendazole additions, but it omitted aquarium volume, usable concentration, replicated vessels, explicit control results, sublethal endpoints and recurrence follow-up. No controlled efficacy-and-safety trial was located for common hobby salt, fenbendazole, praziquantel or peroxide doses against named Neocaridina health agents.

What would answer it: Confirmed-agent trials with concentration verification, exposure duration, untreated controls, life-stage safety and recurrence follow-up.

Related guides: /care/health, /care/quarantine

Which microplastic histories affect individual growth, reproduction and survival in home-like systems?

Current boundary: Direct studies now cover a short high-concentration polystyrene activity and metabolism exposure plus a five-month smooth-sphere population exposure. Neither represents varied household particle histories or directly measures fecundity and repeated individual growth.

What would answer it: Replicated aquaria with verified particle concentration, polymer, shape and size; contamination controls; realistic source histories; and direct individual growth, fecundity, egg, hatch and survival endpoints.

Related guides: /care/chemical-safety, /care/health, /care/growth

How every current gap was searched

A statement that a study was not located is only as useful as its search trail. These dated reviews preserve the taxon names, concepts, search surfaces, candidate decisions and exact queries used. They are reproducible search records, not proof that an unlocated study does not exist.

Gap refined Reviewed August 12, 2026

Are there controlled chronic nitrate, ammonia or nitrite exposure studies in Neocaridina?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: nitrate toxicity, ammonia toxicity, nitrite toxicity, chronic exposure.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, institutional repositories.

Outcome: A restricted official thesis abstract identifies one chronic total-ammonia comparison in N. denticulata, but unavailable full methods prevent validation of its reported maximum acceptable concentration as a care threshold. No controlled chronic nitrate-only or chronic nitrite experiment was located. Both gaps remain open.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi nitrate toxicity chronic nitrate experiment
  • "Neocaridina heteropoda" nitrate toxicity
  • "Neocaridina denticulata sinensis" nitrate exposure
  • site:pubmed.ncbi.nlm.nih.gov Neocaridina nitrate ammonia nitrite
  • "Neocaridina denticulata" chronic ammonia growth reproduction thesis
  • "Toxic Effects of Ammonia on the Freshwater Shrimp Neocaridina denticulata"

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: chronic-nitrate, chronic-ammonia-nitrite.

Gap retained Reviewed August 12, 2026

Which dissolved-oxygen histories change Neocaridina survival, behaviour, growth or reproduction?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: dissolved oxygen, hypoxia, oxygen exposure, survival, reproduction.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes.

Outcome: A direct HIF-1alpha embryo knockdown study adds a molecular cleavage result but assigned no oxygen treatment and measured no dissolved oxygen. No controlled dissolved-oxygen treatment series establishing survival, growth or reproduction limits was located. The gap remains open.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi dissolved oxygen hypoxia experiment survival reproduction
  • "Neocaridina heteropoda" hypoxia oxygen
  • "Neocaridina denticulata sinensis" hypoxia dissolved oxygen
  • site:pubmed.ncbi.nlm.nih.gov Neocaridina hypoxia oxygen

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: dissolved-oxygen.

Gap refined Reviewed August 12, 2026

Which common hobby treatments are both effective against confirmed targets and safe for Neocaridina?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: Scutariella japonica, Holtodrilus, Cladogonium, Deugesia, planaria, salt treatment, hydrogen peroxide, mebendazole, albendazole.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, full-text repositories, multilingual university and journal repositories.

Outcome: A direct pilot abstract narrows the boundary for mebendazole and albendazole, but its incomplete dose, one-vessel-per-group design and three-day survival endpoint do not validate a treatment protocol. No controlled efficacy-and-host-safety trial for the named common hobby salt, fenbendazole, praziquantel or peroxide treatments was located. The gap remains open.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi Scutariella japonica treatment salinity experiment
  • Neocaridina heteropoda Holtodrilus treatment salt salinity
  • Neocaridina denticulata sinensis parasite treatment efficacy salt
  • Neocaridina davidi Cladogonium treatment hydrogen peroxide experiment
  • Neocaridina antiparasitic treatment in vivo efficacy
  • Neocaridina chemotherapy ectoparasite treatment bath
  • Neocaridina planaria albendazol mebendazol experimento aquario
  • Neocaridina heteropoda mebendazol
  • Neocaridina heteropoda albendazol
  • Neocaridina traitement parasite antiparasitaire etude
  • 樱花虾 寄生虫 治疗 实验 盐 浸浴
  • 米虾 寄生虫 药物 治疗 试验

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: treatment-efficacy.

Gap refined Reviewed August 12, 2026

Do direct transport studies validate a package combination or an acclimation rate for Neocaridina?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis, Neocaradina spelling variant, red cherry shrimp, udang red cherry.

Concepts: transport, shipping, closed system, dry transport, acclimation, survival.

Search surfaces: publisher and DOI records, scholarly web indexes, institutional and journal repositories.

Outcome: The package-evidence boundary is refined because two direct transport experiments were located. Neither tests the house package or any drip rate, duration or receiving-water formula, so both operational questions remain open.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi transport shipping experiment bag survival acclimation
  • "Neocaridina heteropoda" transport acclimation experiment
  • "Neocaridina denticulata sinensis" transport shipping survival
  • "Neocaradina denticulata sinensis" transport shipping survival
  • ornamental shrimp Neocaridina transport bag water study
  • "udang red cherry" transportasi penelitian
  • "red cherry shrimp" acclimation experiment water

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: transfer-rate, shipping-package-limits.

Gap refined Reviewed August 12, 2026

Does an assigned aquarium comparison establish a Neocaridina filter type, flow rate or turnover rule?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: filter type, turnover rate, flow rate, current velocity, juvenile density.

Search surfaces: publisher and DOI records, scholarly web indexes, full-text repositories.

Outcome: The gap is refined with a quantified field association. No assigned aquarium filter or turnover comparison was located, so no universal hardware or flow rule follows.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi filter flow rate experiment aquarium
  • "Neocaridina heteropoda" filter turnover flow experiment
  • "Neocaridina denticulata sinensis" current velocity aquarium

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: filter-turnover.

Gap refined Reviewed August 12, 2026

Do direct experiments establish combined GH, KH, pH and conductivity optima for Neocaridina?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: hardness, GH, KH, pH, conductivity, growth, reproduction.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, full-text repositories.

Outcome: The occurrence boundary is broader, but no replicated factorial water-parameter optimum study was located. Field ranges and culture values remain contexts rather than targets.

Exact queries and candidate decisions

Exact queries

  • Neocaridina davidi hardness pH conductivity experiment growth reproduction
  • "Neocaridina heteropoda" water hardness GH KH experiment
  • "Neocaridina denticulata sinensis" pH salinity water quality growth

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: water-parameter-optima.

Gap refined Reviewed August 12, 2026

Do assigned light spectrum, intensity or photoperiod comparisons establish an aquarium lighting regime for Neocaridina?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: photoperiod, light intensity, light spectrum, phototaxis, photosensitivity, molting.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, full-text repositories.

Outcome: The open thesis adds direct intact-animal location counts and a rotating-lamp phase, but its apparatus and analysis cannot establish preference, welfare or a home lighting regime. Molecular studies show that eyestalk pathways participate in short light responses and may connect with molt physiology. No reviewed source establishes an aquarium spectrum, intensity or photoperiod, so the gap remains open.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" photoperiod experiment
  • "Neocaridina heteropoda" light photoperiod growth reproduction
  • "Neocaridina denticulata sinensis" light color behavior
  • Neocaridina light intensity phototaxis experiment
  • "NdGATA123c" full text
  • "Soluble trehalase affects the light sensitivity" full text

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: light-environment.

Gap refined Reviewed August 12, 2026

Which direct leaf-litter studies separate preference, consumption, decomposition, water effects and long-term shrimp outcomes?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata, Neocaridina denticulata sinensis.

Concepts: leaf litter, botanicals, preference, consumption, decomposition, water quality, growth, reproduction.

Search surfaces: publisher and DOI records, Crossref, OpenAlex, Semantic Scholar, institutional repositories, author-upload indexes.

Outcome: One direct cattail-decomposition lead completed method review, while the direct leaf-choice study still needs complete methods. The microcosm supports faster litter breakdown with direct shrimp access under its tested conditions, but mass loss is not measured intake and zero reported mortality is not dietary adequacy. No replicated home-like leaf comparison links an identified treatment to water safety, complete nutrition, growth, reproduction or disease outcomes.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" leaf litter feeding decomposition experiment
  • "Neocaridina denticulata" Typha leaf litter decomposition
  • "Neocaridina davidi" alder catappa leaf preference consumption
  • Neocaridina botanical leaf water quality survival growth reproduction

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: botanical-litter-outcomes.

Gap refined Reviewed August 12, 2026

Does a direct feeding study establish one complete diet, live feed, ration or nutrient target for a Neocaridina colony?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata, Neocaridina sp..

Concepts: complete diet, commercial feed, live feed, ration, intake, survival, growth, reproduction, pigmentation.

Search surfaces: publisher and DOI records, Crossref, scholarly web indexes, open journal PDFs, institutional repositories.

Outcome: Direct feeding studies show that diet treatment can change growth, survival, colour and reproductive endpoints, but no reviewed source defines one complete food, live-feed requirement, pellet count or nutrient target across the full colony life cycle. The adequacy gap remains open.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" complete diet feeding trial survival reproduction
  • "Neocaridina davidi" commercial feed comparison ration intake
  • "Neocaridina" live feed Tubifex Chironomus Daphnia color survival
  • "Neocaridina" nutritional requirement protein lipid amino acid

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: complete-diet-adequacy.

Gap retained Reviewed August 12, 2026

Do controlled pedigrees report F1, F2 and backcross ratios for named aquarium colour lines?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: colour morph cross, F1, F2, backcross, inheritance ratio, trade line.

Search surfaces: publisher and DOI records, scholarly web indexes, genetics journal indexes.

Outcome: The new crustacyanin study adds another functional molecular candidate, but its public record does not expose the complete units or report controlled named-line pedigrees. No study reporting complete F1, F2 and backcross phenotype denominators was located, so the inheritance gap remains open.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" color morph cross F1 F2 inheritance experiment
  • "Neocaridina heteropoda" colour morph crossing genetics offspring
  • "Neocaridina davidi" trade line dominance backcross
  • "Crustacyanins as regulators of functional complementation" full text

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: named-morph-crosses.

Gap retained Reviewed August 12, 2026

Do named fish comparisons measure both adult Neocaridina retention and juvenile recruitment?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: fish tankmate, predation, adult survival, juvenile recruitment, shelter.

Search surfaces: publisher and DOI records, scholarly web indexes, behaviour journal indexes.

Outcome: No named-fish trial with a shrimp-only control and adult plus juvenile colony denominators was located. Coexistence claims remain unvalidated.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" fish tankmate survival recruitment experiment
  • "Neocaridina heteropoda" predator fish juvenile survival aquarium
  • Neocaridina named fish shrimp-only control recruitment

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: tankmate-recruitment.

Gap refined Reviewed August 12, 2026

Has a replicated known-hatch Neocaridina cohort been followed through individual deaths in home-like aquaria?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: lifespan, longevity, known hatch, individual survival, cohort.

Search surfaces: publisher and DOI records, scholarly web indexes, full-text repositories.

Outcome: The review now includes an open known-age-cohort thesis that rules out two simple molecular age markers under its protocols. It does not supply a lifespan distribution because no animal was followed to death and the approximate 13-month value was cited from another source. The lifespan gap remains open.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" individual lifespan laboratory hatch death
  • "Neocaridina heteropoda" longevity lifespan aquarium study
  • Neocaridina known-hatch cohort survival lifespan
  • "Neocaridina heteropoda" sexual maturity age aquarium
  • "Neocaridina denticulata" life cycle aquarium 75 days

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: aquarium-lifespan.

Gap refined Reviewed August 12, 2026

Do multigeneration complete-system experiments establish stable home-aquarium carrying capacity?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis.

Concepts: carrying capacity, population growth, density, multigeneration, recruitment.

Search surfaces: publisher and DOI records, scholarly web indexes, full-text repositories.

Outcome: The evidence base now distinguishes short grow-out density, field density and unreplicated multigeneration observation. No complete-system carrying-capacity experiment was located.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" carrying capacity multigeneration aquarium population experiment
  • "Neocaridina davidi" population growth density long term culture
  • Neocaridina complete-system capacity recruitment density

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: carrying-capacity.

Gap refined Reviewed August 12, 2026

Which direct Neocaridina microplastic studies measure individual growth, reproduction or survival under home-like histories?

Taxon names: Neocaridina davidi, Neocaridina heteropoda, Neocaridina denticulata sinensis, Neocaridina palmata.

Concepts: microplastics, polystyrene, growth, reproduction, survival, behaviour, metabolism.

Search surfaces: publisher and DOI records, PubMed, scholarly web indexes, full-text repositories.

Outcome: A third fully reviewed direct study adds particle-ingestion and short egestion observations in N. palmata without measuring chronic harm. The 2025 combined cadmium study remains a candidate until its methods can be verified, and the home-like growth and fecundity gap remains open.

Exact queries and candidate decisions

Exact queries

  • "Neocaridina davidi" microplastic exposure reproduction growth 2025 2026
  • "Neocaridina denticulata sinensis" microplastics experiment
  • "Neocaridina" polystyrene microplastics cadmium survival growth histopathology
  • site:pubmed.ncbi.nlm.nih.gov Neocaridina microplastic

Candidate sources

Next scheduled search: February 12, 2027. Related gaps: microplastic-exposure.

Challenge a claim or add a missing source

Disagreement is welcome when it is specific enough to review. Send the exact page and sentence, a DOI or stable source link, what the source actually measured and the wording you think the evidence supports. You can also say whether public credit is welcome. No contributor is named without permission.

Send a structured evidence challenge

Visible review outcomes

Every substantive challenge receives one of these outcomes. Accepted changes enter the public log above. When the wording remains unchanged, the review reason is preserved so the same question does not vanish into an inbox.

OutcomeWhat it means
Correction acceptedA factual, citation, transcription or calculation error changed the public record.
Scope clarifiedThe source stayed, but the wording changed to match its taxon, unit, duration or endpoint.
Source addedA relevant source completed method review and entered the evidence or supporting-authority registry.
Awaiting full textThe lead is relevant, but the accessible record cannot verify the methods needed to change guidance.
No changeThe current wording remains, with the review reason preserved when the challenge is substantive.

This is a research-review channel, not emergency animal care. Email is reviewed manually and has no guaranteed response time. Do not wait for an email reply when livestock face an active water-quality or exposure emergency.

Contribute a structured tank observation

A source challenge asks whether a published claim is represented correctly. A community observation asks what happened in one defined tank, group, interval and method. Keep those paths separate. The observation notebook accepts feeding response, fixed-view juvenile counts and exuvia sightings, including zeros and contrary outcomes.

Open the community observation notebook

Every record is manually reviewed. Publication means the reporting minimum was met, not that identity, causation or a general husbandry rule was established.

Compare all community contribution paths and safeguards.

What is kept outside this map

Molt & Moss house practice remains in the care guides and operating records. A house temperature, quarantine minimum, nitrogen action point or shipping gate is labelled as an operational choice. It does not become direct species evidence because it appears beside a citation.

Community observations can generate a question and a reproducible protocol. They remain observations until the design, denominator, comparison and uncertainty support something stronger.

Use the care guides or read the open grade standard.