European sea bass is a major Mediterranean aquaculture species. Welfare concerns including high stocking density, crowding stress, and sea lice management are increasingly scrutinized.
European sea bass aquaculture sits at a crossroads: consumer demand for affordable Mediterranean fish has driven intensification that compromises welfare, while growing certification pressure from premium markets is pushing for higher standards. Sea bass in overcrowded conditions experience chronic stress, elevated disease susceptibility, and restricted behavioral expression. The fish also suffer during harvest crowding and transport. Welfare improvements — lower stocking density, better disease management, and humane slaughter — are achievable but require market incentives or regulatory standards to drive adoption at scale. Mediterranean aquaculture certification schemes are the primary lever for improvement.