Aquaculture

Sea Bass Slaughter Welfare: Methods and Improvements

How slaughter method affects European sea bass welfare and what improvements are available.

Key Facts

Live chilling is the most common sea bass slaughter method — poor welfare outcome
Electrical stunning renders fish insensible within seconds when applied correctly
Percussive stunning is effective for larger sea bass but less practical for small fish
CO2 narcosis before killing is controversial — evidence suggests it causes distress

Welfare Considerations

European sea bass slaughter welfare is a major concern — live chilling in ice-water causes prolonged consciousness and distress. Electrical stunning applied correctly renders fish instantaneously insensible and is the welfare gold standard. Welfare-informed aquaculture has adopted electrical stunning at scale — certification schemes are increasingly requiring it as a minimum standard.

What You Can Do

Choose sea bass from producers using electrical stunning at slaughter
Advocate for mandatory electrical stunning requirements across Mediterranean aquaculture species
Support research into optimal electrical parameters for different sea bass sizes and temperatures