European Eel Welfare in Aquaculture and Fisheries

The European eel is a critically endangered species farmed from wild-caught glass eels, raising both welfare and conservation concerns about a production system entirely dependent on declining wild populations.

Key Facts

European eel is classified as Critically Endangered; populations have declined by over 90% since the 1970s
Eel aquaculture relies entirely on wild-caught glass eels (elvers) as no captive breeding has been achieved
Glass eels are harvested from river estuaries during migration and placed in recirculating aquaculture systems
Eels are highly sensitive to handling stress and poor water quality
Slaughter of eels often involves electrocution or live gutting, with significant welfare concerns

Welfare Considerations

Eel aquaculture is unique in being entirely dependent on wild populations, meaning farming pressure directly reduces the wild stock of a critically endangered species. This creates a dual welfare and conservation concern. Individual eels in intensive recirculating systems face chronic stress from high stocking densities, lack of habitat complexity, and repeated handling during harvesting. Slaughter methods for eels vary widely, and live processing without effective prior stunning causes significant suffering. The conservation status of wild eels argues strongly for both welfare improvement in farming and a transition away from wild-caught seeds.

What You Can Do

Reduce consumption of eel products given the conservation status of wild European eel populations
Support research into captive eel breeding to reduce reliance on wild glass eel collection
Advocate for welfare-centred slaughter requirements for eel and other aquaculture species
Engage with seafood sustainability guides that highlight the conservation concerns around eel consumption