Catch and release
Returning a caught fish alive to the water, common in sport fishing for mahseer, salmon, bass and billfish.
In catch and release, anglers land a fish, unhook it quickly and let it go. The practice helped save the mahseer fisheries of rivers such as the Kaveri, where angling camps ran strict catch and release for decades. Survival depends on care: barbless hooks, short fights, wet hands, keeping the fish in the water and supporting it until it swims off. Deep-water fish may suffer when brought up quickly, because their swim bladders expand. Some argue that catch and release still harms fish, and the practice is restricted or debated in some countries.