Farmed Eel Welfare and Slaughter Practices

Eels are farmed and consumed in large numbers, particularly in Japan and Europe. Their welfare during farming and slaughter is severely compromised by practices that cause prolonged suffering.

Key Facts

Japan consumes approximately 70,000 tonnes of eel annually, mostly farmed freshwater eel (unagi)
Eels have a robust stress response and demonstrate pain-avoidance behaviors consistent with sentience
Common slaughter methods include live evisceration, salting, and smoking while conscious
European eel (Anguilla anguilla) is critically endangered; wild capture adds conservation pressure
Eels are typically transported alive and kept in crowded tanks before slaughter
Electrical stunning before slaughter is effective in eels but rarely used in commercial practice

Welfare Considerations

Eel slaughter methods commonly used in Japan and elsewhere — including cutting, skewering, and cooking while alive — cause prolonged suffering. The eel's robust physiology means they remain responsive for extended periods during these procedures. The combination of high consumption volume and severely inadequate welfare practices makes eel farming a significant but underrecognized welfare issue. Electrical stunning before slaughter has been validated as an effective humane alternative but has not been widely adopted. Consumer awareness and retailer policies have the potential to drive improvement.

What You Can Do

Reduce or eliminate consumption of farmed eel given severe unresolved welfare concerns
Ask Japanese restaurants about sourcing practices and whether pre-stun slaughter is used
Support campaigns to establish mandatory stunning requirements for eel slaughter
Advocate for critically endangered European eel to be protected from commercial fishing
Support research into humane eel farming and slaughter alternatives