Aquaculture certification schemes have grown significantly but significant gaps remain in species coverage, welfare criteria, and implementation consistency.
The proliferation of aquaculture certifications has created a complex landscape where consumers struggle to distinguish meaningful welfare improvements from greenwashing. Some certifications primarily address environmental impacts with minimal welfare criteria - a certified product may come from fish experiencing significant welfare problems. Fish welfare science has advanced substantially but certification standards have not kept pace. The most meaningful certifications include specific welfare indicators such as stocking density limits, water quality parameters, and slaughter method requirements. As aquaculture produces increasing proportions of global seafood, the welfare gap in certification coverage for many species becomes increasingly significant.