Shrimp is the most consumed seafood globally. Intensive shrimp farming causes enormous welfare harm to animals whose capacity for suffering is increasingly recognised.
Shrimp welfare sits at the frontier of welfare science. Their nervous systems differ from vertebrates in architecture, but the evidence for pain-like states — nociception, avoidance learning, protective behaviour after injury — is growing. The precautionary principle clearly applies: given plausible capacity for suffering and the enormous numbers involved (trillions farmed annually), welfare improvement is urgently warranted. Eyestalk ablation as routine aquaculture practice is the most obvious target — it involves physical damage to a sensory organ and causes chronic physiological disruption. The welfare minimum is elimination of eyestalk ablation from broodstock management.