European eels are critically endangered and farmed eels face unique welfare challenges due to their migratory lifecycle, sensitivity to stress, and the ethical questions around a collapsing wild population.
European eel farming sits at the intersection of welfare and conservation concerns. Reliance on wild-caught juveniles means every farmed eel represents a loss from a critically endangered wild population. The welfare of farmed eels is compromised by their aggression in crowded conditions, sensitivity to environmental stressors, and the difficulty of humane slaughter - eels remain neurologically active for extended periods after conventional killing methods. The ethical case for consuming farmed European eel is very difficult to make given both the conservation status of the species and the welfare challenges of farming them.