Aquaculture certification schemes like ASC have improved environmental and some welfare standards, but significant gaps remain in fish pain management, slaughter welfare, and comprehensive behavioral indicators.
Aquaculture certification represents meaningful but incomplete progress toward welfare-positive seafood systems. The primary weakness of current certification frameworks is that they were designed with environmental sustainability as the primary goal — animal welfare was incorporated later and incompletely. Fish welfare provisions in even the most comprehensive standards lag significantly behind what terrestrial livestock welfare standards require, reflecting the earlier stage of fish welfare science and weaker regulatory attention to aquatic species. The gap between what is certified and what consumers assume is certified — that fish are treated humanely throughout their lives — is significant. Building comprehensive, science-based fish welfare provisions into certification standards, including slaughter method requirements, pain management protocols, and behavioral welfare indicators, represents the next generation of aquaculture certification development.