Aquaculture Welfare

Aquaculture Fish Anaesthesia Welfare Standards

Anaesthesia during handling and medical procedures in aquaculture reduces stress and pain - standards for its use are developing across species.

Key Facts

MS-222 (tricaine methanesulfonate) is the most widely used fish anaesthetic in research and aquaculture
Clove oil (eugenol) is a more widely accessible alternative used in smaller scale operations
Recovery times and dosage are species-specific and require careful calibration
Anaesthesia reduces cortisol responses and injury during sampling, vaccination, and grading
Welfare-conscious aquaculture certification increasingly requires anaesthesia for invasive procedures

Welfare Considerations

Fish anaesthesia reduces the suffering associated with handling and medical procedures in aquaculture. As fish sentience evidence grows, the routine use of anaesthesia for invasive procedures is becoming an ethical standard, not an optional extra.

What You Can Do

Support aquaculture welfare certification requiring anaesthesia for invasive procedures
Advocate for fish anaesthesia standards in national aquaculture welfare regulations
Purchase fish from certified producers with documented welfare handling protocols