Farmed shrimp represent the largest number of individual animals in global aquaculture. Their capacity to suffer is debated but evidence warrants serious welfare consideration at this enormous scale.
The welfare of farmed shrimp is contested due to uncertainty about their sentience, but their enormous numbers mean even a modest probability of pain capacity represents a massive welfare concern. Eyestalk ablation causes clear tissue damage to broodstock shrimp. High-density crowding increases stress indicators measurable through physiological markers. Slaughter without effective stunning means hundreds of billions of animals potentially die conscious. The sheer scale of shrimp production — dwarfing all other farmed animal production in terms of individual numbers — means that if shrimp have any meaningful capacity to suffer, the welfare implications are enormous. Precautionary approaches to shrimp welfare improvements are increasingly being advocated by welfare scientists.