Sea lions occupy a contested position in fishery management and are common zoo and aquarium animals. Their welfare needs span wild conflict zones and captive facilities.
Sea lion welfare spans genuinely different contexts. Wild California sea lions at salmon runs are healthy, recovering animals caught in a conflict between their natural foraging behavior and the economic and conservation priorities of salmon fishery management. Lethal removal in this context is a welfare cost incurred for disputed conservation benefit — non-lethal alternatives are frequently effective. Captive sea lions in performing shows raise behavioral welfare concerns when training methods are coercive or performance demands exceed animal motivation. Positive reinforcement-trained sea lions in modern zoos often show better welfare indicators, but the performance model remains ethically contested. Domoic acid poisoning events, which strand sea lions in acute neurological distress, require rapid, skilled veterinary response.