Shrimp aquaculture produces over 4 million tonnes annually and involves animals whose sentience is increasingly recognized. Welfare improvements in shrimp farming could benefit hundreds of billions of individuals.
The question of shrimp sentience remains scientifically contested but the precautionary principle increasingly supports treating shrimp welfare as a genuine concern. Stocking densities in intensive shrimp ponds can be extreme, leading to oxygen depletion, ammonia stress, and chronic crowding. Disease-related mortality events can be catastrophic in scale. Harvesting and slaughter methods — often involving immersion in ice slurry without stunning — may cause prolonged suffering if shrimp experience pain. The sheer scale of shrimp production means that even marginal welfare improvements per individual, implemented across the industry, would constitute one of the largest animal welfare advances possible.