The sentience of farmed shrimp is increasingly recognized by scientists and regulators. This emerging science has significant implications for the welfare of billions of farmed animals.
Recognition of shrimp sentience is transforming the ethics of shrimp farming and consumption. Shrimp show avoidance learning, protective responses to injury, and physiological stress responses consistent with capacity for suffering. Billions are farmed in conditions of extreme density, poor water quality, and are killed by methods likely to cause pain. As evidence of sentience strengthens, the welfare case for higher standards in shrimp farming — lower density, better water quality, and humane slaughter — becomes compelling, even under precautionary reasoning.