Freshwater Fish Welfare in the Wild: Catch-and-Release and Beyond

The welfare of wild freshwater fish is increasingly recognised as a legitimate concern, with evidence that fish experience stress and potentially pain requiring consideration in angling and fisheries management.

Key Facts

The UK has over 3 million anglers, making angling one of the most popular outdoor activities
Evidence from neuroscience and behaviour strongly suggests fish experience stress and likely pain
Catch-and-release returns the majority of sport fish to the water, but handling and hooking cause measurable stress
Best practice guidance for catch-and-release includes minimising air exposure and using barbless hooks
Commercial fisheries management increasingly considers fish welfare in stocking and harvesting decisions

Welfare Considerations

Fish hooked and played during angling experience physiological stress responses - elevated cortisol, lactic acid build-up, and oxygen debt - that can last hours to days after release. Air exposure causes additional physiological stress. Fish returned to water in poor condition face elevated predation risk during recovery. Welfare-conscious anglers minimise handling time, keep fish in water as much as possible, and use barbless hooks for easier release. The welfare case for careful catch-and-release practice is strong.

What You Can Do

Use barbless hooks or crimp barbs to reduce tissue damage and ease hook removal
Keep fish in water as much as possible - aim for under 30 seconds air exposure
Support fisheries that practice high-welfare management including appropriate stocking densities
Learn fish welfare best practice from the Angling Trust's guidelines
Consider whether your fishery's management practices reflect fish welfare as well as fish production