Catch and Release Fishing Welfare: Evidence and Best Practice

Catch-and-release recreational fishing causes welfare harm to fish that can be minimized through evidence-based handling practices.

Key Facts

Post-release mortality in catch-and-release fishing varies from under 1% to over 90% depending on species, method, and conditions
Air exposure during photography significantly increases mortality and stress — fish should not be kept out of water
Barbless hooks allow faster, less traumatic dehooking and reduce tissue damage
Water temperature at the time of release is a major predictor of survival — warm water reduces post-release survival
Deep-water fish brought to the surface experience barotrauma — a welfare problem requiring specific handling protocols

Welfare Considerations

Catch-and-release fishing is often promoted as conservation-friendly but its welfare implications deserve attention. Fish experience pain and stress responses during capture, hooking, and handling that cause genuine welfare harm. Post-release physiological stress, including elevated cortisol and tissue damage, can persist for hours. Best practice minimizes time out of water, uses barbless hooks, avoids touching the fish with dry hands that damage the protective mucus layer, and avoids fishing in warm water conditions where recovery probability is lower. The welfare-minimizing approach does not require abandoning the activity but requires thoughtful practice.

What You Can Do

Use barbless hooks to minimize tissue damage and enable faster, less traumatic release
Keep fish in the water as much as possible — 30 seconds maximum air exposure for a fish photograph
Wet your hands before handling fish to protect the mucus layer
Avoid fishing in water temperatures above 20 degrees Celsius for cold-water species like trout
Use fish-friendly landing nets with soft mesh that reduces scale and fin damage