European sea bass is one of the most important Mediterranean aquaculture species, facing welfare challenges from intensive production methods that are increasingly subject to scientific scrutiny.
Sea bass welfare in Mediterranean aquaculture reflects broader challenges of intensive fish farming applied to a species with ecological requirements that resist easy captivity. Sea bass evolved as active pelagic hunters, and the confinement, crowding, and social disruption of cage culture creates chronic behavioral and physiological stress. Parasitic gill disease causes pain and respiratory compromise that would be severe in any animal capable of suffering. The diversity of production and slaughter standards across Mediterranean countries means welfare outcomes vary enormously between producers with little consumer-visible differentiation. Welfare science for sea bass is less developed than for salmon, partly because Mediterranean aquaculture has faced less regulatory and consumer pressure for welfare improvement.