Wild Atlantic Salmon: Life History and Welfare Threats

Atlantic salmon are anadromous fish with complex migratory needs that are threatened by multiple human pressures, creating welfare problems throughout their life cycle.

Key Facts

Atlantic salmon migrate from UK rivers to feeding grounds off Greenland and Norway
Only 3-5% of salmon that enter the sea survive to return and spawn
Dam, weir, and culvert barriers prevent many fish reaching spawning grounds
Diseases from salmon farms spread to wild fish migrating past cage sites
Pollution and abstraction degrade the cold, well-oxygenated water salmon require

Welfare Considerations

Wild salmon face welfare harms throughout their life cycle: struggling at migration barriers causes exhaustion and injury; sea lice from salmon farms cause skin damage and osmotic stress; pollution degrades habitat quality. Salmon failing to reach spawning grounds cannot complete their life cycle, representing profound frustration of one of the strongest biological drives any vertebrate can experience. Habitat restoration, barrier removal, and aquaculture regulation simultaneously address conservation and welfare concerns.

What You Can Do

Support the Atlantic Salmon Trust and Rivers Trust financially
Advocate for mandatory fish passes at all barriers on salmon rivers
Oppose salmon cage siting near wild salmon migration routes
Follow the progress of wild salmon population recovery programmes
Choose rod-caught salmon only from rivers with healthy, certified sustainable populations