Aquaculture welfare research has accelerated dramatically in the past decade. Understanding the current scientific frontiers helps advocates identify the most evidence-based priorities for improving fish and shellfish welfare.
Aquaculture welfare research is rapidly translating into practice, but significant gaps remain. The welfare of economically important species like salmon, trout, and shrimp is increasingly well understood; the welfare of less economically prominent species farmed in large numbers — carp, tilapia, pangasius — receives less systematic research attention. The development of validated operational welfare indicators represents a particularly important advance: welfare assessment tools that can be reliably applied by industry and auditors during routine operations provide the foundation for welfare standards and certification. Supporting this research pipeline — from basic pain science through welfare assessment methodology to commercial application — is one of the highest-impact investments available for improving aquaculture welfare.