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Annoying noise: effect of anthropogenic underwater noise on the movement and feeding performance in the red cherry shrimp, Neocaridina davidi
Azarm-Karnagh, López Greco and Shafiei Sabet, 2023. Frontiers in Ecology and Evolution 11: 1091314.
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
- Single laboratory test aquarium comparing 20-minute ambient playback near 96.54 dB with broadband playback near 110.40 dB re 1 micropascal over 400 to 2000 Hz
- Life stages
- mature male, mature female
- Reviewed
- 2026-08-12
What was studied
Study shape: Two behavioural experiments each used 70 food-deprived shrimp, with 35 individual trials per playback condition and treatment order randomized across sequential trials.
Experimental unit: Individual trial in one experimental aquarium; aquarium and speaker arrangement were not independently replicated
Endpoints: movement speed, horizontal position, feeding latency, food finding, food revisits, feeding distraction.
Claim boundary
What it can support: In the tested aquarium, broadband playback changed horizontal distribution and several food-finding and feeding measures compared with ambient playback; total movement speed did not differ between treatments.
What it cannot support: One small-tank sound field cannot identify a safe equipment noise level. Particle motion was not measured, the aquarium was not replicated and divider removal coincided with playback onset for part of the design.
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.
Registered version relationships: 10.1101/2022.10.10.511615. A preprint relationship is publication lineage, not independent replication.
Metadata snapshot reviewed 2026-08-12. Inspect the method, unmatched queue and limitations.
Correction impact
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Editorial review required (2)
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Generated from governing registry (10)
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How this record is classified
Controlled experiment: An assigned treatment or controlled comparison. The treatment, unit, duration and endpoint still limit the claim.
Direct Neocaridina evidence: The source measured animals named within Neocaridina. Direct still does not mean universal or sufficient.
Topics: Behaviour, Feeding, Habitat
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- 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.
- Treatment assignment: Were independent units assigned to treatments, and were baseline conditions comparable? Unclear allocation or baseline imbalance can confound the treatment comparison.
- Replication: Were treatment vessels or other exposure units independently replicated rather than subsampled? Repeated animals or assays inside one exposure unit do not replicate the environmental treatment.
- Exposure verification: Was the treatment, dose, feed intake or environmental exposure measured and maintained as described? Nominal treatment labels may not equal the exposure animals actually received.
- Analysis: Did the statistical model match the unit, repeated measures, multiplicity and missing outcomes? A precise p-value cannot repair a mismatched unit or unaccounted comparison structure.
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