European seabass is a major Mediterranean aquaculture species with growing selective breeding programs and welfare challenges centered on density and disease management.
Seabass aquaculture welfare is an emerging area of scientific and regulatory attention in Europe. The species demonstrates clear stress responses and social hierarchies that are disrupted by intensive production conditions. Genetic selection for rapid growth may inadvertently select against behavioral traits associated with welfare, such as reduced stress responsiveness — a pattern documented in other selectively bred species. Disease management through crowding-facilitated transmission creates a cycle of antibiotic use and stress that compounds welfare concerns. European aquaculture regulation under the EU Animal Welfare Action Plan is beginning to address fish welfare more explicitly, though species-specific guidance for seabass lags behind salmonid standards.