Wild salmon face welfare challenges throughout their life cycle from pollution and habitat degradation to fishing practices and predation.
Wild salmon welfare spans an extraordinary life cycle from freshwater birth to ocean maturity and return migration. Climate change-driven river temperature increases in some systems exceed the thermal tolerance of salmon, causing direct welfare harm through heat stress. Dam removal programs have significantly improved salmon welfare and survival in several North American rivers by restoring migration routes. Catch-and-release angling in warm water conditions causes welfare harm through both handling stress and elevated post-release mortality when combined with high temperatures. Protecting wild salmon welfare requires addressing the full range of threats from dam removal to climate action.