Farmed Eel Welfare and Aquaculture Challenges

European and Japanese eels are highly valued but face severe welfare challenges in aquaculture. Their complex life histories, behavioral needs, and the inability to breed them in captivity create unique ethical challenges.

Key Facts

Neither European nor Japanese eel can be bred in captivity; all farmed eels begin as wild-caught glass eels
European eel populations have collapsed by over 90% since the 1980s; they are Critically Endangered
Eel farming relies entirely on capturing juvenile wild eels, putting further pressure on declining populations
Eels are sensitive to handling stress and can suffer severe capture myopathy during wild collection
They require varied hiding places and substrate; bare tank systems cause chronic stress
Stunning methods for eels are particularly difficult due to their body shape and electrical resistance

Welfare Considerations

Eel aquaculture presents a fundamental sustainability and welfare paradox: production depends on wild capture of an endangered species, and the welfare of both wild-caught juveniles and farmed adults is poorly managed. European eel farms typically hold animals at high densities in flow-through or recirculating systems with minimal environmental enrichment. Eels are nocturnal and require hiding places; their absence causes abnormal huddling behavior indicative of chronic stress. Slaughter methods are particularly problematic: live skinning and salt bath suffocation remain practices in some production systems. Reducing eel consumption is currently the most impactful welfare and conservation action available.

What You Can Do

Significantly reduce or eliminate eel consumption given the Critically Endangered status of European eel
Avoid products containing European or Japanese eel; check labels for country of origin
Support European eel river restoration programs that improve wild population survival
Advocate for a ban on European glass eel collection to allow population recovery