Farmed Eels and Welfare Concerns

European eels are critically endangered, and the eel farming industry — which relies on wild-caught glass eels for stocking — creates both conservation and welfare concerns that remain largely unaddressed.

Key Facts

European eels are classified as critically endangered on the IUCN Red List
Eel aquaculture cannot breed eels in captivity — all farmed eels start as wild-caught glass eels or elvers
Wild glass eel capture removes juvenile eels from a population already at approximately 5% of historical levels
Farmed eels are kept at densities that cause chronic stress and aggression-related injuries
The welfare of eels has historically received minimal regulatory attention despite their vertebrate status
Several European countries have restricted glass eel exports; Japan imports large quantities from Europe

Welfare Considerations

Eel farming sits at the intersection of conservation and welfare failure. The fundamental production model — removing wild juveniles from a critically endangered species to farm them at high density — cannot be made sustainable regardless of on-farm welfare improvements. The wildlife welfare problem is the glass eel harvest that sustains the industry. Individual farmed eels experience welfare problems rooted in high density, low oxygen management, and species-atypical behavioral conditions. The most direct welfare and conservation improvement is reducing demand for farmed eel products sufficiently to reduce glass eel harvest pressure on wild populations.

What You Can Do

Avoid eating European eel products given the critical endangerment of the species
Support campaigns calling on sushi restaurants and Japanese import companies to stop sourcing European glass eels
Advocate for stronger EU glass eel export restrictions
Support research into closed-cycle eel breeding that could reduce wild capture dependency
Donate to European eel conservation programs working on habitat restoration and population recovery