Shrimp are the most traded seafood commodity globally by value. Evidence of nociception in decapod crustaceans has prompted growing scientific and regulatory interest in shrimp welfare during farming and at slaughter.
If shrimp and other decapod crustaceans are sentient — and increasing evidence suggests they are — then shrimp farming and harvesting operations involve potential suffering on a massive scale. Conventional practices including tail ablation in female broodstock (to induce spawning), high-density rearing, and live boiling at harvest all involve procedures that would be considered inhumane if applied to vertebrates. The precautionary principle suggests implementing welfare improvements even before scientific certainty is achieved, given the potential scale of harm.