Farmed Eel Welfare Advances | Animal Welfare Hub

New research and industry initiatives addressing the welfare of European eels in aquaculture.

Key Facts

European eels are critically endangered in the wild but farmed in large numbers across Europe
Eels are sensitive to handling stress and release large amounts of cortisol when disturbed
Traditional eel farming involves high-density recirculating systems with limited enrichment
Eels are capable of learning and show preferences for complex environments
Pre-slaughter stunning by electricity or carbon dioxide is inconsistently applied in eel farms
Welfare research on eels has expanded significantly in the past decade

Welfare Considerations

Eels present a distinctive welfare challenge: they are farmed at scale, yet their complex biology and wild-caught seed stock dependency create conservation and welfare tensions simultaneously. Research has confirmed that eels experience stress responses and likely pain, placing them firmly within the scope of welfare concern. Industry practices including high-density housing, frequent handling, and inadequate stunning at slaughter need updating in light of this evidence. Consumer awareness and certification demand can drive improvements.

What You Can Do

Choose farmed eel from certified operations that document welfare and stunning protocols
Support research institutions advancing understanding of eel pain and stress responses
Advocate for mandatory electrical stunning before slaughter in eel aquaculture
Raise awareness of the conservation status of wild European eels alongside their welfare needs
Encourage aquaculture certification bodies to include eel-specific welfare criteria