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Methods to Induce Analgesia and Anesthesia in Crustaceans: A Supportive Decision Tool.

Guiomar Rotllant1, Pol Llonch2, José A García Del Arco1

  • 1Institut de Ciències del Mar, Spanish National Research Council (CSIC), Passeig Marítim de la Barceloneta, 37, 08003 Barcelona, Spain.

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Summary

This review evaluates methods for crustacean anesthesia and analgesia across 71 species, offering an online tool to aid researchers in selecting humane and effective agents for improved animal welfare.

Keywords:
analgesiaanesthesiacrabscrayfisheslobsterspainprawnsshrimpswelfare

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Area of Science:

  • * Marine Biology and Animal Welfare
  • * Invertebrate Physiology and Pharmacology

Background:

  • * Anesthesia and analgesia are crucial for humane crustacean research, handling, transport, and stunning.
  • * Previous research has primarily focused on decapod crustaceans, leaving a gap in knowledge for other species.

Purpose of the Study:

  • * To comprehensively review and evaluate anesthetic and analgesic methods for a wide range of crustacean species.
  • * To provide a user-friendly online tool for selecting appropriate methods based on species and experimental conditions.
  • * To offer recommendations on suitable and unsuitable anesthetic agents and techniques for crustaceans.

Main Methods:

  • * A non-systematic literature search was conducted to identify existing methods for crustacean anesthesia and analgesia.
  • * Data on drugs, non-chemical methods, species, life stages, environmental conditions, and administration details were compiled.
  • * An interactive, web-based database (Datasette) was developed for data exploration and download.

Main Results:

  • * The review covers anesthetic and analgesic methods used in 71 crustacean species, extending beyond decapods.
  • * An online tool allows filtering and downloading data by various parameters, including method, agent, species, and environmental factors.
  • * Several current techniques and chemicals were identified as unsuitable for crustacean anesthesia, with justifications provided.

Conclusions:

  • * The study provides a valuable resource for researchers to select appropriate and humane methods for crustacean anesthesia and analgesia.
  • * The online tool facilitates data-driven decision-making for optimizing crustacean welfare.
  • * Evidence suggests crustaceans experience pain, necessitating humane treatment and the application of stress and pain management principles.