Barramundi farming is a growing aquaculture sector in Australia and Southeast Asia with specific welfare challenges related to crowding, temperature, and handling.
Barramundi welfare presents challenges characteristic of farming highly territorial, predatory fish at commercial densities: cannibalism management through continuous size grading imposes repeated handling stress, while high-density rearing creates the social environment that triggers territorial aggression. Temperature management is a welfare necessity — barramundi experiencing cold stress show suppressed immunity and behavioral changes that indicate physiological distress. The Australian barramundi aquaculture industry has invested more than average in welfare research, creating a foundation for developing evidence-based standards. Applying these standards consistently across the larger Southeast Asian industry where barramundi production volume is highest represents the next welfare improvement frontier.