Aquatic Animal Welfare

Salmon Sea Cage Enrichment and Behaviour

Environmental enrichment in sea cage salmon aquaculture is an emerging welfare area, exploring whether structural additions can improve fish behaviour and welfare.

Key Facts

Salmon in barren sea cages show circling stereotypy and surface orientation
Underwater lighting, current-creating jets and structural complexity alter swimming behaviour
Enrichment effects on welfare indicators including cortisol and fin erosion are being studied
Salmon show learning and preference behaviour suggesting capacity to engage with enrichment
Economically viable enrichment must balance welfare benefit with practical cage management

Welfare Considerations

Sea cage enrichment for salmon is an area of active research translating principles from terrestrial welfare science to aquatic settings. Early evidence suggests environmental complexity reduces stereotypy and improves activity patterns. Practical enrichment design must account for the challenges of marine cage environments.

What You Can Do

Support aquaculture research institutes working on fish welfare enrichment
Choose certified salmon from producers committed to welfare improvement programmes
Advocate for welfare enrichment requirements in advanced aquaculture certification standards