Aquaculture Lumpfish Welfare - Cleaner Fish

Welfare of lumpfish used as cleaner fish in Atlantic salmon farms to control sea lice, and current knowledge gaps.

Key Facts

Lumpfish eat sea lice from salmon skin providing a biological control reducing chemical treatment needs
Approximately 50 million lumpfish are produced annually in hatcheries for the salmon farming industry
Lumpfish welfare standards lag significantly behind those for the host salmon species they serve
Tail fin erosion, skin lesions, and emaciation are common welfare problems in farm-deployed lumpfish
Research into lumpfish pain perception and stress physiology is beginning to inform welfare improvement

Welfare Considerations

This topic carries significant welfare implications. Evidence-based management and timely veterinary care can substantially improve outcomes for the animals involved.

What You Can Do

Consult your veterinarian or a specialist for guidance specific to your situation
Follow evidence-based management protocols and best practice guidelines
Monitor animals closely and intervene promptly when welfare concerns arise
Stay updated with current research, legislation, and industry standards
Share knowledge with others to improve welfare outcomes across the sector