Common carp farming is among the largest aquaculture sectors globally, particularly in Asia, with specific welfare challenges from crowding, handling, and winter conditions.
Carp aquaculture welfare reflects a tension between the species biological resilience and the welfare costs of intensive production practices. Carp can survive conditions that would kill more sensitive species, but survival is not the same as welfare — they still suffer from hypoxia, crowding stress, handling trauma, and the prolonged stress of live transport and storage. The Christmas carp tradition in Central and Eastern Europe — keeping live carp in home bathtubs for days before slaughter — represents one of the most visible carp welfare concerns, combining overcrowding, poor water quality, and prolonged captivity. Rapid on-site slaughter at the point of purchase would dramatically reduce this welfare burden. Carp welfare improvement requires both industry-level change and consumer behavior shifts.