Farmed shrimp number in the hundreds of billions annually, yet welfare research on this species is minimal. Growing evidence for crustacean sentience makes shrimp welfare a significant emerging priority.
Farmed shrimp welfare presents the scale challenge in its starkest form: hundreds of billions of individuals, virtually no welfare research, and uncertain but non-negligible sentience evidence. If shrimp experience anything like pain — and the evidence, while limited, does not exclude this — then their production and slaughter conditions represent one of the largest welfare problems in the food system. Current production involves crowded ponds with high disease pressure, antibiotic overuse, and slaughter by freezing or boiling without any attempt at stunning. The welfare-appropriate response to this uncertainty is to fund research that resolves the sentience question while applying the precautionary principle: treating shrimp with more care than currently provided costs little and potentially prevents enormous suffering if their sentience is confirmed.