The welfare dimensions of wild Pacific salmon conservation, from ocean survival to spawning migration challenges and hatchery supplement programs.
Wild Pacific salmon conservation engages animal welfare at population scale — the welfare of millions of individual fish is linked to the health of ecosystems and the accessibility of spawning habitat. Individual salmon expend enormous energy reserves during spawning migration, an evolved strategy that causes death after reproduction as part of the natural lifecycle. Human interventions — dam construction, overfishing, habitat loss — disrupt this lifecycle in ways that cause additional welfare harm by preventing fish from completing migration, wasting their reproductive effort, and collapsing populations. Conservation actions that restore habitat and migration access improve welfare at both individual and population levels.