Breeding and Life Cycle of Neocaridina denticulata sinensis (Kemp, 1918)

Nur and Christianus, 2013. Asian Journal of Animal and Veterinary Advances 8(1): 108-115.

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: Aquarium-shop animals labelled Neocaridina denticulata sinensis; identification method not reported
Environment: Dechlorinated aerated tap water at 27 to 28 C, pH 6.5 to 7.5, dissolved oxygen above 4 mg/L, reported ammonia and nitrite below 0.1 mg/L, commercial 40 percent protein feed offered ad libitum twice daily and about 50 percent weekly water renewal
Life stages: shop-sourced adult, ovigerous female, egg, selected one-week-old offspring, reported juvenile, reported first maturity
Reviewed: 2026-08-12

What was studied

Study shape: About 30 females and 30 males were conditioned separately for one month. Ten selected male-female pairs then shared one breeding aquarium. Ovigerous females were moved to individual 7 by 7 by 10 cm containers for hatch observations. Thirty healthy one-week-old offspring were selected into one shared aquarium and observed through a reported life-cycle sequence.

Experimental unit: One shared breeding aquarium for the ten pairs and one shared aquarium for the 30-offspring life-cycle cohort; individual ovigerous-female containers supplied brood observations, but the methods do not explain the greater number of points visible in the brood-mass graph or whether females contributed repeated broods

Endpoints: mating and attached-egg timing, egg length, incubation time, hatchling total length, brood count, reported juvenile and first-maturity time, female mass and brood-count relationship, water context, observed Holtodrilus occurrence.

Claim boundary

What it can support: Under the reported culture history, selected adults mated and carried eggs, incubation was reported as 15 days at 27 C, hatchlings had a shrimp-like form and measured about 2.3 mm total length, observed broods ranged from 21 to 51, and the selected shared offspring cohort was reported to reach first maturity near 75 days and 2.3 cm total length.

What it cannot support: Species identity rested on an aquarium-shop label without a reported diagnostic method. There was one breeding tank and one 30-offspring life-cycle tank, with no independent tank replication. Only healthy one-week-old offspring were selected, and survival, losses, family contributions, observation intervals, individual tracking and the denominator reaching maturity were not reported. The brood-mass figure shows more observations than the ten-pair method explains and labels R squared as 0.3589, while the text reports 0.9587 and 0.959. Water conditions and the 40 percent protein feed were not assigned comparisons, so they are context rather than optima. High mortality during Holtodrilus occurrence lacks a denominator and causal control. The claimed 5 to 10 ppt salinity response had no assigned treatment, untreated control, dose-duration, host-safety endpoint or recurrence follow-up and cannot support a salt treatment. Study duration and season coverage were not reported, so year-round reproduction was not established. The work cannot validate a universal 15-day incubation, 75-day maturity calendar, body-size threshold, feeding recipe, water-quality target or parasite treatment.

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 (11)

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

breeding 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.
growth decision card Tank-side decision card
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health decision card Tank-side decision card
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sexing 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.
breeding practical guide Practical guide
The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
growth practical guide Practical guide
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health practical guide Practical guide
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sexing practical guide Practical guide
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treatment-efficacy knowledge gap Canonical knowledge gap
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treatment-efficacy research allocation Current research allocation
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Generated from governing registry (19)

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

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health portable decision card Generated decision-card text
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sexing portable decision card Generated decision-card text
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Breeding and Life Cycle of Neocaridina denticulata sinensis (Kemp, 1918) Canonical evidence page
The canonical evidence page derives from the current evidence registry record.
breeding evidence dossier Generated guide dossier
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growth evidence dossier Generated guide dossier
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health evidence dossier Generated guide dossier
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sexing evidence dossier Generated guide dossier
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Historical record needs follow-up decision (2)

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

Which common hobby treatments are both effective against confirmed targets and safe for Neocaridina? Dated literature search
The dated search used this exact source as a candidate (excluded: Breeding and life cycle of Neocaridina denticulata sinensis). Preserve the search history and decide whether a revised or additional search is required.
One life-cycle tank is not a universal 75-day maturity calendar Historical research change
The historical change cites this source. Preserve the old decision and decide whether a new public correction is required.

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How this record is classified

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.

Direct Neocaridina evidence: The source measured animals named within Neocaridina. Direct still does not mean universal or sufficient.

Topics: Breeding, Growth and lifespan, Anatomy, Water parameters, Feeding, Health

Critically appraise this source without a score

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

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.
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.
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.
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.
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.
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.
System relationship: Was the measured unit an aquarium system, analytical method, another taxon or another biological level? A system or method result is not automatically a Neocaridina animal response.
Inference mechanism: What explicit mechanism or shared property makes the adjacent evidence relevant? Similarity must be stated and tested rather than assumed from a broad label.
Target validation: Has the method or inference been validated in Neocaridina, the intended water, life stage and decision range? Analytical validity in one matrix or biological validity in another species may not transfer.
Permitted use: Is the source being used only for its method or system role rather than promoted to animal evidence? Useful adjacent evidence becomes misleading when its role is silently upgraded.

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