Carp are the most popular target species for coarse anglers and face significant welfare risks from poor handling practices.
Carp welfare is affected by handling practices during catch and release. Fish held out of water too long suffer oxygen deprivation and stress. Wet unhooking mats reduce scale damage but are not universally used. Knotted landing nets damage the mucous coat that protects fish from disease. Deeply hooked fish suffer internal injury. Overcrowding in club waters and carp stress shows from poor water quality.