Aquaculture certification schemes claim to assure consumers about the welfare and environmental standards of farmed seafood. Understanding what different certifications actually require helps consumers make informed choices.
Aquaculture certification provides useful but imperfect welfare assurance. The most rigorous schemes require welfare outcome monitoring, limit stocking densities, and have specific criteria for disease management and humane slaughter. However, the most widespread schemes prioritise environmental sustainability alongside welfare, and welfare standards may be secondary. The absence of mandatory pre-slaughter stunning for fish in most certified systems represents a significant welfare gap. Consumers who seek certified farmed seafood are making a meaningful choice relative to uncertified alternatives — but should not assume that certification equates to full welfare protection.