Crabs are caught in enormous numbers globally and face significant welfare challenges during capture, handling, storage, and processing. Evidence suggests they have the capacity to suffer.
Crab welfare is a rapidly evolving area of concern as scientific evidence for crustacean sentience has strengthened. The UK legislation recognizing crab sentience has been a watershed moment — it signals that the precautionary case for crab welfare standards is now mainstream enough to drive policy. From a welfare perspective, the primary concerns in commercial crab fishing are capture stress (long entrapment in pots with other crabs and bycatch species), handling during sorting and grading, live storage conditions, and slaughter methods. The standard practice of live boiling — dropping living crabs into boiling water — is increasingly recognized as welfare-problematic given evidence that crabs can experience pain. Electrical stunning achieves irreversible unconsciousness within seconds and is now commercially available. For the catching phase, shorter soak times for crab pots reduce entrapment duration, and ghost gear retrieval programs address ongoing welfare impacts of abandoned fishing equipment.