Pacific white shrimp (Penaeus vannamei) is the world's most farmed crustacean, with production exceeding 5 million tonnes annually in Asia. Welfare science for shrimp has advanced significantly by 2026, informing debates about whether intensive farming causes morally significant suffering.
Eyestalk ablation in broodstock females is one of the most widely criticised welfare practices in aquaculture: it causes clear pain responses and is performed without anaesthesia on billions of shrimp annually. The UK formally extended animal sentience protections to decapod crustaceans in 2022, triggering discussions about import standards. Intensive pond shrimp show stress responses measurable through behavioural disruption and immune suppression. Pre-slaughter stunning of shrimp using electricity is technically feasible and is being piloted by welfare-focused producers. Consumer awareness of shrimp welfare is growing, and certification schemes are beginning to incorporate crustacean welfare criteria.