The Berried Clubby Molt & Moss
Menu

Open this record in the complete research map

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.

Open the source

This record is a claim boundary, not a quality badge. Evidence class and species relationship describe what was studied. They do not make the result universal, complete or automatically applicable to a home aquarium.

Source taxon as published
One adult female identified by the source as Neocaridina davidi and deposited as voucher CCDB 6963
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
Life stages
one adult female with 6.52 mm carapace length
Reviewed
2026-08-12

What was studied

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

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

Claim boundary

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.

Publication status audit

Matched in dated Crossref query

The canonical DOI appeared in the dated broad query and carried no registered update in that response. This is a metadata observation, not proof that the work has never changed.

Metadata snapshot reviewed 2026-08-12. Inspect the method, unmatched queue and limitations.

Correction impact

If this source boundary changes, these are the known downstream consumers. The list distinguishes scientific re-review from generated parity and historical follow-up.

Editorial review required (4)

This curated wording or synthesis must be reconsidered when the source boundary changes. A passing generator test cannot decide the new scientific meaning.

  • species decision card Tank-side decision card
    The card translates this guide into an observation, first action, next record and stopping boundary, so all four require editorial review when the source changes.
  • surplus decision card Tank-side decision card
    The card translates this guide into an observation, first action, next record and stopping boundary, so all four require editorial review when the source changes.
  • species practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
  • surplus practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.

Generated from governing registry (13)

This surface derives from a governing registry and should update with it, but release tests must still prove parity and routing.

Historical record needs follow-up decision (1)

Do not silently rewrite history. Decide whether the prior change record remains accurate and publish a new correction or scope note when needed.

Inspect the corpus-wide propagation audit.

How this record is classified

Morphology or taxonomy: Anatomy, specimen identification or taxonomic relationships were studied with stated methods. A trade name or photograph cannot replace those methods.

Neocaridina identity evidence: The source addresses identity, relationships or genetics within the Neocaridina complex.

Topics: Species and taxonomy, Wild populations, Genetics

Critically appraise this source without a score

These questions fit this record's morphology or taxonomy role. They are prompts, not automatic judgments. Open the original source to answer them.

  1. Identity and provenance: How were the organism, population, stock and life stage identified and sourced? A published name or seller label can hide a taxonomic, population or life-stage transfer.
  2. Independent unit: What unit was independently assigned or sampled, and how many units support each comparison? Animal counts do not create independent replication when animals share a vessel, site, family or treatment history.
  3. Comparison and context: What was the actual comparator, allocation process, environment, duration and material condition? A result has meaning only against the comparison and conditions that produced it.
  4. Endpoint and measurement: Which endpoint was measured, with what method, unit, timing, resolution and decision rule? One endpoint cannot silently become survival, welfare, diagnosis, reproduction or long-term population performance.
  5. Denominators and missingness: Are starting counts, exclusions, losses, missing observations and analysis denominators reconciled? Unreported or changing denominators can alter the apparent direction, precision and applicability of a result.
  6. Transfer boundary: What is the nearest tempting aquarium claim that this source design cannot establish? Direct evidence can still be narrow, and adjacent evidence can be useful only while the inference remains visible.
  7. Examined material: Which specimens, localities, sexes, stages, types or sequence accessions were actually examined? A diagnosis applies to examined material and methods, not automatically to a trade-line photograph.
  8. Diagnostic characters: Which characters or loci distinguish the taxon, and were alternatives explicitly compared? Color alone may be variable, convergent or unrelated to the diagnostic character.
  9. Name history: Were synonyms, historical combinations, type material and later revisions checked? An older title can describe a population that later work placed in another taxon.
  10. Consumer identification limit: Can the required character or method be observed reliably in an ordinary live-animal image? A valid taxonomic method may still be unavailable to a keeper examining one photograph.

Read the complete appraisal framework.

Where it is used

Reuse the reviewed citation boundary

Download CSL-JSON or download RIS. Both retain this record's support, limitation and review note.

Challenge a transcription, interpretation or missing boundary. A challenge changes the record only after editorial review.