Welfare Science

Fish Pain Research: 2026 Scientific Update

A review of the state of fish pain science in 2026, including key findings, controversies, and welfare policy implications.

Key Facts

Over 90% of fish pain researchers now accept that fish have nociceptive systems capable of pain processing
Behavioural evidence for fish pain includes protective responses, avoidance learning, and analgesic relief
The question of conscious suffering in fish remains philosophically contested but increasingly accepted
UK, Switzerland, and Norway have extended pain-relevant protections to fish based on scientific evidence

Welfare Considerations

The scientific consensus on fish pain has shifted substantially toward acceptance of fish sentience over the past two decades. Policy and practice have lagged behind this science, leaving billions of farmed and wild-caught fish outside meaningful welfare protection in most of the world.

What You Can Do

Engage with the scientific literature on fish pain and sentience
Support organisations advocating for welfare-based fish handling in aquaculture and recreation
Advocate for angling best-practice guidelines based on current fish pain science