Aquaculture Welfare

Aquaculture Anaesthesia Welfare

Anaesthesia use in aquaculture for sampling, tagging, transport, and veterinary procedures requires attention to species-appropriate agents, dosing, and recovery conditions for fish welfare.

Key Facts

MS-222 (tricaine methanesulfonate) is the most commonly used fish anaesthetic
Clove oil (eugenol) is a natural alternative used in organic aquaculture contexts
Overdose of anaesthetics causes fish death while underdose fails to provide welfare benefit
Water temperature significantly affects the required dose of most fish anaesthetics
Recovery from anaesthesia requires well-oxygenated water and recovery time

Welfare Considerations

Anaesthesia is a welfare tool for fish that, when used appropriately, enables necessary interventions with minimised stress and pain. Inadequate anaesthetic practices either fail to provide welfare benefit or cause death, making species-appropriate protocols and training essential for aquaculture welfare.

What You Can Do

Support aquaculture training programs that include anaesthetic protocols for fish
Learn about the welfare implications of different aquaculture anaesthetic agents
Advocate for anaesthetic use requirements in aquaculture welfare standards