Welfare of Animals in Wild Salmon Rivers

Wild salmon face welfare threats throughout their life cycle — from ocean bycatch to river barriers to the welfare implications of their natural semelparous death after spawning.

Key Facts

Pacific salmon die after spawning — a natural semelparous life strategy that sustains river ecosystems
Atlantic salmon are iteroparous and can survive spawning, returning to sea multiple times
Hydroelectric dams fragment salmon rivers and kill fish in turbines and at passage structures
Wild salmon populations have declined over 70% in many North American rivers since the 1960s
Salmon carcasses provide approximately 80% of the nutrient input to some boreal riparian ecosystems

Welfare Considerations

Wild salmon welfare encompasses a full life cycle: ocean bycatch, river navigation barriers, dam turbine passage injuries, and finally the natural process of spawning death. Dam passage creates welfare harm for both upstream migrating adults and downstream migrating smolts. Fish ladders reduce barrier effects but cause exhaustion. Turbine passage causes mechanical injury and pressure trauma. Dam removal — increasingly happening on rivers including the Klamath and Elwha — is the most welfare-positive and ecologically restorative intervention.

What You Can Do

Support dam removal campaigns on rivers where salmon populations can be restored
Donate to Pacific Coast Federation of Fishermens Associations salmon habitat restoration programs
Advocate for mandatory fish passage standards at all hydroelectric facilities
Reduce farmed salmon consumption to protect wild salmon rivers from aquaculture-linked disease pressure