Barramundi is a high-value aquaculture species in Australia and Asia with welfare challenges across its production cycle.
Barramundi welfare is shaped by their territorial, predatory nature in a high-density culture environment. Cannibalism during size-disparate cohort rearing causes suffering and mortality that frequent grading seeks to minimize, though grading itself is a stressful handling event. Temperature management is both a welfare and production priority — cold stress causes immune suppression and behavioral abnormalities. The differential between Australian welfare standards and Southeast Asian production demonstrates that barramundi welfare improvement is achievable but requires both regulatory will and market pressure. Consumer demand for certified, welfare-monitored barramundi creates the economic signal needed to drive improvement across the production range.