Aquaculture

Common Carp Welfare in Aquaculture

Common carp is one of the most widely farmed fish species globally and a popular angling fish whose welfare in both contexts requires attention.

Key Facts

Common carp is the third most farmed fish species by volume globally
They are farmed in pond systems across Eastern Europe, Asia and increasingly the UK
Carp have well-developed pain and stress response systems
Angled carp are returned live in the UK; welfare during capture and handling is important
Overcrowding and poor water quality in ponds cause chronic stress and disease

Welfare Considerations

Carp welfare in pond aquaculture is affected by stocking density, water quality and disease management. Overcrowded ponds with poor oxygen levels create chronic stress and increase parasite burdens. Handling during harvesting causes acute stress and injury. In angling contexts, the welfare of catch-and-release carp is influenced by hook type, landing mat use and handling duration.

What You Can Do

Use barbless hooks to reduce injury in carp angling
Handle caught carp on wet mats and return promptly to water
Choose carp from certified farms with appropriate stocking density standards
Support water quality research for carp aquaculture improvement
Advocate for species-specific welfare standards covering carp farming