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Cited by 215Crustacean biology and ecologyPhilosophy and Theoretical ScienceAnimal Behavior and Welfare Studies

Sentience in decapod crustaceans: a general framework and review of the evidence

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Crump, Andrew, Browning, Heather, Schnell, Alex, Burn, Charlotte, Birch, Jonathan·2022·Animal Sentience
DOI 10.51291/2377-7478.1691
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Abstract

We outline a framework for evaluating scientific evidence of sentience, focusing on pain experience. It includes eight neural and cognitive-behavioural criteria, with confidence levels for each criterion reflecting the reliability and quality of the evidence. We outline the rationale for each criterion and apply our framework to a controversial sentience candidate: decapod crustaceans. We have either high or very high confidence that true crabs (infraorder Brachyura) satisfy five criteria, amounting to strong evidence of sentience. Moreover, we have high confidence that both anomuran crabs (infraorder Anomura) and astacid lobsters/crayfish (infraorder Astacidea) meet three criteria—substantial evidence of sentience. The case is, as yet, weaker for other infraorders, such as penaeid shrimps, highlighting important research gaps. Having demonstrated our framework’s application to decapod crustaceans, we hope that future research will apply it to other taxa.

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Authors
Crump, A., Browning, H., Schnell, A., Burn, C., & Birch, J.
Affiliations
Royal Veterinary College (GB)
ORCID
Venue
Animal Sentience
Publisher
WellBeing International Publications
Published
2022-01-01
Volume
7
Issue
32
ISSN
2377-7478 (ISSN-L)
DOI
10.51291/2377-7478.1691
OpenAlex
W4285143868
Cited by
215
References
7
Citations by year
2026: 17 · 2025: 44 · 2024: 55 · 2023: 50 · 2022: 48 · 2021: 1
FWCI
26.24
Type
journal article
Language
en
Open access
Licence
Locations
  • Animal Sentience (publishedVersion, cc-by)
  • ePrints Soton (University of Southampton) (acceptedVersion, cc-by)
  • London School of Economics and Political Science Theses Online (London School of Economics and Political Science) (acceptedVersion, cc-by)
  • London School of Economics and Political Science Research Online (London School of Economics and Political Science) (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • WBI Studies Repository (submittedVersion, cc-by)
Funders
  • Department for Environment, Food and Rural Affairs, UK Government (AW0517)
  • European Commission (851145, HORIZON2020)
Topics
  • Physical Sciences › Environmental Science › Ecology › Crustacean biology and ecology
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Philosophy and Theoretical Science
  • Health Sciences › Veterinary › Small Animals › Animal Behavior and Welfare Studies
Keywords
sentience, Decapoda, pain experience, Brachyura, Anomura, Astacidea, penaeid shrimp, animal welfare

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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