Farmed Salmon Welfare: Challenges in Aquaculture

Farmed Atlantic salmon face significant welfare challenges in intensive aquaculture systems. Understanding these issues is important for consumer awareness and welfare improvement.

Key Facts

Norway produces over 1.4 million tonnes of farmed salmon annually
Sea lice infestations are a major welfare and conservation problem in salmon farming
Salmon in farms experience higher rates of injury, disease, and mortality than wild fish
Mortality rates in Norwegian salmon farms average 15-20% over the production cycle
Evidence increasingly supports fish sentience and capacity for pain in salmon

Welfare Considerations

Farmed salmon experience welfare challenges throughout their production cycle. High stocking densities limit normal swimming behavior and create water quality challenges. Sea lice infestations cause painful wounds on the skin and gills. Treatments for sea lice using chemicals or mechanical methods including hydrolysers cause significant trauma. Gill disease from algal blooms, viral pathogens, and amoebic gill disease causes breathing difficulties. Crowding during harvesting and slaughter methods used in some facilities may not achieve rapid insensibilization. Despite growing evidence of fish sentience, welfare regulation of aquaculture remains less stringent than for terrestrial livestock.

What You Can Do

Choose salmon certified to higher welfare standards where available
Reduce salmon consumption given the scale of welfare concerns
Support organizations advocating for improved aquaculture welfare legislation
Ask seafood retailers about the welfare standards of their salmon suppliers
Support research into improved sea lice management that minimizes fish trauma
Consider plant-based omega-3 sources as an alternative to salmon