Largemouth bass are cultured for sport fish stocking in the USA. Their aggressive predatory nature creates welfare challenges in intensive hatchery production.
Largemouth bass welfare in hatcheries is challenged by their aggressive predatory nature. Cannibalism in mixed-size groups causes injury and mortality requiring intensive management. Live prey are required for early feeding stages, raising welfare questions about prey species. Transition to pelleted diets causes a period of food refusal and stress. Post-stocking welfare in catch-and-release fisheries depends on handling technique, water temperature, and recovery time after landing. Minimum-contact release and warm-water avoidance reduces catch-and-release welfare harm.