Carp are among the most popular catch-and-release angling species globally, with welfare evidence informing best practice to minimize harm during capture and handling.
Carp catch-and-release welfare has been studied more thoroughly than most angling welfare questions, revealing that standard practices cause measurable physiological stress that can be substantially reduced through behavior changes. The transition to barbless hooks, unhooking mats, and mandatory water recovery periods in organized angling is driven by both welfare evidence and regulatory requirements in some European countries. Cultural change in angling communities — from viewing welfare concerns as sentimental to recognizing them as evidence-based — is the primary mechanism for improving catch-and-release welfare outcomes.