Farmed Eel Welfare and Aquaculture

European eel aquaculture relies entirely on wild-caught juveniles given that captive breeding has not been achieved, creating both conservation and welfare concerns.

Key Facts

European eel (Anguilla anguilla) is critically endangered — wild glass eel recruitment has declined by 95% since the 1980s.
All farmed European eels originate from wild-caught glass eels (juveniles) since breeding in captivity has never been successfully achieved at scale.
Eels are kept at high densities in recirculating aquaculture systems with water quality management challenges.
Slaughter methods for eels — including decapitation and percussive stunning — have variable efficacy and welfare outcomes.
Asian eel species are also farmed extensively, with similar welfare concerns around stocking density and harvest practices.

Welfare Considerations

European eel aquaculture creates a unique welfare and conservation dilemma: farming relies on wild capture of a critically endangered species, meaning welfare improvement and conservation are intertwined. Every glass eel captured for farming depletes the wild population. Simultaneously, individual farmed eels experience the welfare costs of high-density intensive systems and poorly welfare-assessed killing. Sustainable eel consumption requires both welfare improvement in farming and a dramatic reduction in consumption of a species that cannot sustain current harvest levels.

What You Can Do

Avoid consuming European eel products given the critically endangered status of wild populations.
Support research into captive eel breeding that could eventually remove pressure on wild populations.
Advocate for stronger controls on glass eel capture quotas and improved enforcement against illegal trade.
Choose seafood from abundant, sustainably managed species rather than critically endangered ones like European eel.