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Pain Recognition in Fish.

Lynne U Sneddon1, Jonathan A C Roques2

  • 1Department of Biology and Environmental Sciences, University of Gothenburg, Medicineragatan 18A, Gothenburg 413 90, Sweden.

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|November 19, 2022
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Summary
This summary is machine-generated.

Recognizing and assessing pain in fish is crucial for their welfare. Behavioral and physiological indicators, though species-specific, help evaluate fish pain effectively.

Keywords:
FishesNociceptionPainRainbow troutStressWelfareZebrafish

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Area of Science:

  • Animal Welfare Science
  • Fish Biology
  • Pain Research

Background:

  • Empirical evidence confirms fish can experience pain.
  • Assessing fish pain is vital for ensuring their welfare.
  • Current assessment methods include general, physiological, and behavioral indicators.

Purpose of the Study:

  • To review methods for recognizing and assessing pain in fish.
  • To highlight the importance of operational welfare indicators.
  • To discuss the validity and limitations of behavioral indicators for fish pain assessment.

Main Methods:

  • Review of empirical evidence on fish pain.
  • Categorization of pain indicators (general, physiological, behavioral).
  • Distinction between tank-side (operational) and laboratory-based assessments.

Main Results:

  • Behavioral indicators are valid and show significant differences between painful and non-painful conditions.
  • Operational welfare indicators can be assessed at the tank side.
  • Physiological indicators may require further analysis.
  • Behavioral responses to pain are not universal and exhibit species-specific variations.

Conclusions:

  • Recognizing and assessing pain in fish is essential for their welfare.
  • A combination of behavioral and physiological indicators provides a comprehensive approach.
  • Understanding species-specific differences in behavioral responses is critical for accurate pain assessment in fish.