Sustainability labels for farmed fish are proliferating, but welfare standards vary enormously. Understanding what certifications actually deliver helps consumers make informed choices.
Aquaculture certification presents genuine opportunities for welfare improvement but requires critical evaluation. Environmental sustainability certifications that lack specific welfare criteria provide limited assurance of fish welfare, despite often being purchased with welfare assumptions by consumers. Certifications that include species-appropriate stocking densities, water quality standards, humane slaughter requirements, and disease management protocols deliver more meaningful welfare assurance. As fish welfare science advances, certification bodies are under increasing pressure to incorporate welfare criteria more rigorously. Consumer demand for transparent welfare standards is the most effective lever for driving certification quality improvement.