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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.

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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
Freshwater shrimp including Neocaridina davidi and Neocaridina denticulata
Environment
About 1,200 field specimens from forty-six sites in Henan Province
Life stages
field-collected specimens
Reviewed
2026-08-12

What was studied

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

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

Claim boundary

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.

Publication status audit

Canonical DOI outside query result

The record has a canonical DOI but did not appear in the broad Neocaridina query. It requires DOI-specific or alternative-registry status review before any no-update statement.

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 (6)

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

  • genetics 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 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.
  • A published species name is evidence context, not permanent identity Curated evidence comparison
    The bounded reconciliation and unresolved question use this record in an explicit comparison.
  • genetics practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
  • species practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
  • round1-taxonomy-identity Curated first-round reviewer assignment
    The frozen reviewer scope or consequential-failure check uses this record through the assigned claim trace or comparison and must be reconsidered before invitation or response.

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.

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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.

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Where this result is compared

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