Millions of crabs are caught commercially each year. Their welfare from point of capture through transport and killing is a significant but underaddressed issue.
Crabs caught in creels may be held for extended periods in crowded, stressful conditions before landing. Chilling in cold water reduces activity but may not induce unconsciousness. Spiking of crabs is less well-established than for lobsters given their diffuse nervous system. Leg loss during rough handling causes bleeding and infection. The Shellfish Association of Great Britain has published welfare guidance but uptake is variable.