Aquatic Animals

Sea Bass and Sea Bream Aquaculture Welfare

Sea bass and sea bream are widely farmed in Mediterranean aquaculture systems, with welfare challenges from crowding, handling, and slaughter practices.

Key Facts

European sea bass and gilthead sea bream are the two most important Mediterranean aquaculture species
They are carnivorous requiring significant wild fish in feed
Crowding causes fin erosion, aggression, and stress
Sea bass show preference tests and learning indicative of sentience
Stunning before slaughter is not universally practiced in Mediterranean aquaculture

Welfare Considerations

Sea bass and sea bream welfare in farming systems is affected by stocking density, water quality, feeding management, and slaughter practices. CO2 narcosis is a common but welfare-poor slaughter method causing distress before loss of consciousness. Electrical or percussive stunning provides more humane killing. Consumer demand for higher welfare Mediterranean fish products can drive improvement.

What You Can Do

Ask retailers about welfare standards for their sea bass and sea bream
Support MSC or ASC certification for Mediterranean aquaculture products
Advocate for EU-wide stunning requirements before fish slaughter
Choose suppliers with documented humane slaughter commitments
Support research into welfare indicators for Mediterranean aquaculture species