Marine Animal Welfare

Aquatic Invertebrate Welfare: Crabs and Lobsters at Slaughter

The welfare of crabs and lobsters at slaughter is regulated in the UK following scientific evidence of sentience, but practices vary widely and many methods remain inhumane.

Key Facts

The UK recognised decapod crustaceans as sentient beings in 2021, informed by the London School of Economics review
Boiling live lobsters is now discouraged and alternative killing methods recommended
Electrical stunning followed by pithing is considered the most humane method for lobster slaughter
CO2 stunning is less effective for crustaceans and may cause distress
Many restaurants and processors still use live boiling due to cost and tradition

Welfare Considerations

The recognition of crustacean sentience creates an obligation to improve slaughter welfare. Live boiling imposes a prolonged period of potential pain and distress. Electrical stunning renders lobsters insensible within seconds when correctly applied. Implementation of humane slaughter standards requires equipment investment and industry training. Consumer awareness and purchasing choices can drive faster adoption of better practices.

What You Can Do

Ask restaurants and fishmongers about their crustacean slaughter methods
Support restaurants that have adopted humane crustacean stunning methods
Learn about the evidence for crustacean sentience from the LSE report by Birch et al.
Advocate for mandatory stunning requirements for crustacean slaughter in your country