Shrimp aquaculture produces over 4 million tonnes annually with almost no welfare standards, despite growing evidence that shrimp may experience pain and chronic stress under intensive farming conditions.
Shrimp welfare sits at the frontier of animal welfare science, where genuine scientific uncertainty about sentience meets enormous numbers of animals produced under intensive conditions. Even if the probability of shrimp sentience is relatively low, the scale of production — hundreds of billions of individual animals annually — means that even small welfare probabilities translate into enormous potential suffering aggregates. The precautionary approach to animal welfare suggests that improving shrimp handling, slaughter, and density conditions while scientific certainty develops is the responsible position. The cost per animal of welfare improvements in shrimp production is extremely low given their size, making the cost-benefit case for precautionary welfare measures strong.