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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.

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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
Neocaridina davidi
Environment
Diagnostic examination of an imported commercial group during a multifactorial outbreak
Life stages
submitted adult or subadult shrimp
Reviewed
2026-08-12

What was studied

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

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

Claim boundary

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.

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 (6)

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

  • anatomy 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.
  • health 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.
  • quarantine 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.
  • anatomy practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
  • health practical guide Practical guide
    The guide uses this evidence record and its practical wording must remain inside the revised source boundary.
  • quarantine 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 (16)

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

Field observation: Animals were observed in a field population. Occurrence and association do not create a home-aquarium optimum or prove causation.

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

Topics: Health, Anatomy, Species and taxonomy

Critically appraise this source without a score

These questions fit this record's field observation 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. Sampling frame: How were sites, dates, habitats and animals selected, and what population can that sampling represent? Convenient or uneven sampling limits prevalence, abundance and seasonal inference.
  8. Sampling effort: Was effort standardized or recorded across sites, times and environmental conditions? Observed counts can change because detectability or effort changed rather than the population.
  9. Association: Which co-varying environmental or biological factors could explain the observed association? Field correlation does not by itself identify cause or a husbandry intervention.
  10. Detection and absence: Could non-detection reflect gear, visibility, season, behavior or identification limits? Not observed is not equivalent to absent.

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