Prawns are one of the most traded seafood commodities globally. Growing scientific understanding of crustacean sentience raises important welfare questions for the billions of prawns farmed annually.
Prawn welfare sits at the frontier of animal welfare science, in the zone of genuine uncertainty about the extent of subjective experience. Behavioral evidence supports nociception and some form of pain processing, though the conscious experience of suffering remains debated. The precautionary principle suggests that welfare considerations are warranted. Practically, the most clearly harmful practices — eyestalk ablation, extremely high stocking densities, and harvest by prolonged warm water immersion — could be improved without definitive resolution of the sentience question. Consumer demand for certified sustainable prawns increasingly encompasses welfare considerations. The scale of prawn farming (trillions of animals annually) makes even modest per-animal welfare improvements enormously significant in aggregate.