Farmed Seabass Welfare in Mediterranean Aquaculture

European seabass is a major Mediterranean aquaculture species - welfare challenges include handling stress, sea lice, net pen conditions, and slaughter practices.

Key Facts

European seabass production exceeds 200,000 tonnes annually, mainly from Greece, Turkey, and Italy
Sea bass are farmed primarily in offshore net pens in the Mediterranean Sea
Handling during grading, health treatments, and harvest causes acute stress responses
Sea bass show cortisol spikes during net crowding and air exposure comparable to salmonids
Stocking densities in intensive systems can impair swimming behaviour and increase injury risk
Slaughter typically involves iced seawater - evidence suggests this is not a humane method

Welfare Considerations

Seabass welfare has historically received less attention than salmon, but growing evidence shows European seabass have comparable sentience and welfare needs. Stress during handling, disease treatment, and slaughter is a significant welfare concern given annual production volumes. Iced seawater slaughter causes prolonged loss of consciousness (minutes) compared to electrical stunning (seconds), representing a clear welfare opportunity for improvement. Higher welfare certification schemes are beginning to address seabass alongside salmonids.

What You Can Do

Choose seabass certified by ASC or equivalent welfare-inclusive standards where available
Reduce farmed seabass consumption or diversify to welfare-certified species
Support campaigns for improved welfare slaughter standards in Mediterranean aquaculture
Engage with retailers and restaurants about seabass supplier welfare requirements
Advocate for mandatory electrical stunning before slaughter in EU aquaculture legislation
Follow fish welfare organisations campaigning for seabass-specific welfare improvements