European eel farming involves a species that is Critically Endangered in the wild, raising unique welfare and conservation questions about the sustainability of the aquaculture industry.
European eel aquaculture presents a dual welfare and conservation crisis. Every farmed eel began as a wild-caught glass eel, meaning eel farming both depletes a critically endangered species and involves keeping eels in intensive conditions. In intensive tank systems, eels are held at densities that prevent normal burrowing and resting behaviour. Their hardiness means they survive conditions that would kill other species — but survival does not equal welfare. The conservation dimension adds an additional ethical layer: consuming farmed European eel supports an industry that accelerates extinction of a wild population. Choosing alternatives and supporting wild eel population restoration serve both welfare and conservation simultaneously.