Sea cucumbers are increasingly farmed in China, Japan, and across the Asia-Pacific for food and traditional medicine markets, with welfare status under active scientific investigation.
Sea cucumber welfare sits at the edge of current animal welfare science. As echinoderms, they are taxonomically distant from vertebrates and lack centralised nervous systems, yet they respond behaviourally to stressors and exhibit complex physiological responses. The evisceration response to handling stress represents a dramatic physiological reaction to perceived threat. The precautionary principle increasingly applied to invertebrate welfare suggests that minimising unnecessary stressors in sea cucumber production is justified even without definitive evidence of subjective experience. Aestivation management, water quality, and harvest timing relative to natural biological cycles are practical welfare-relevant management decisions.