Bluefish is an aggressive, active predatory species with specific welfare needs that make intensive aquaculture challenging. Tank design and stocking management are key welfare factors.
Bluefish welfare challenges arise from their active, predatory natural history that contrasts sharply with the confined conditions of aquaculture. Insufficient swimming space causes chronic stress evidenced by cortisol elevation and stereotypic circling. Cannibalism at mixed sizes results in significant injury and mortality. Providing large volume tanks with high water exchange, strict size-grading, and minimal handling reduces welfare compromise. The species may be inherently poorly suited to intensive aquaculture welfare standards.