Aquaculture certification schemes have improved welfare standards for some species, but significant gaps remain in coverage, rigor, and enforcement across the sector.
Aquaculture certification is the primary market mechanism for driving welfare improvement across global fish production, but its limitations are significant. Coverage gaps mean most farmed fish globally are uncertified; standard variability means some certifications offer minimal welfare assurance; auditing weaknesses mean certified operations may not consistently meet claimed standards. Strengthening aquaculture certification requires greater species coverage, evidence-based welfare standards, independent third-party auditing, and meaningful enforcement consequences for violations. Consumers can exert pressure by demanding transparency from certification bodies and retailers about what their labels actually guarantee — and supporting schemes with the most rigorous and credible welfare standards.