Aquaculture certification schemes vary enormously in welfare standards, with some certifications providing minimal actual welfare improvement beyond baseline production.
Aquaculture certification creates a significant welfare communication problem: certifications primarily designed for environmental sustainability are marketed to consumers who may assume they indicate good animal welfare. The result is a market where welfare-conscious consumers cannot easily distinguish operations that have made genuine welfare improvements from those that have simply met environmental benchmarks. Developing welfare-specific aquaculture certification with robust, auditable standards for stocking density, slaughter method, water quality, and disease management would provide the transparency that welfare-motivated consumers need.