Billions of crabs are caught and killed annually, often by methods considered inhumane. Growing evidence for crustacean sentience is reshaping how we should think about crab welfare.
The recognition of crustacean sentience in UK law reflects a growing scientific consensus that the capacity for pain experience in crabs and other decapods cannot be dismissed. Live boiling, the most common method of killing crabs for food, exposes animals to significant thermal stress for an uncertain duration before death. Declawing of live crabs causes direct tissue trauma and releases animals without limbs that may impair their survival. Electrical stunning followed by spiking or cutting provides rapid loss of consciousness that is demonstrably more humane than live boiling. The gap between current practice and welfare-conscious alternatives is large, and regulatory pressure combined with industry adoption of stunning equipment is needed to close it.