Shrimp aquaculture produces over 5 million tonnes annually but operates with minimal welfare oversight. Whether shrimp are sentient is debated, but the precautionary case for welfare standards is growing.
Shrimp welfare sits at the frontier of animal ethics. The evidence for nociception - the ability to detect and respond to harmful stimuli - is now reasonably established. Whether this involves subjective suffering comparable to vertebrates remains uncertain, but the UK's legal recognition of decapod sentience reflects the scientific consensus that the precautionary case for welfare standards is strong. Given that billions of shrimp are produced annually, even a small probability of significant suffering represents an enormous welfare burden. The industry currently operates without meaningful welfare standards for stunning, slaughter or stocking density.