Recreational angling is one of the most popular outdoor activities in the UK, and welfare practices around catch-and-release and fish handling directly affect the welfare of millions of fish annually.
Angling fish welfare is determined by handling practices more than any other single factor. Fish removed from water experience respiratory stress that compounds with handling time. Research on trout and salmon shows that even brief air exposure (under 30 seconds) causes measurable physiological stress and reduced post-release survival probability. Wet hands, unhooking mats, barbless hooks, and rapid release are evidence-based practices that reduce this welfare harm. The Angling Trust's 'Fish Care' programme translates this evidence into practical guidance for anglers. Treating catch-and-release angling as a zero-harm activity ignores real physiological costs to returned fish.