Aquaculture

Farmed Carp Welfare in Pond Systems

Carp are the most-farmed fish globally by weight, with welfare considerations around crowding, temperature extremes, and harvest methods.

Key Facts

Global carp production exceeds 30 million tonnes annually, mainly in Asia
Common carp are highly adapted and tolerant of low oxygen but still suffer at extremes
Winter pond management and oxygen provision during ice-covered periods prevents mortality
Harvest by net concentration and air exposure causes significant stress and asphyxiation
Carp are now recognised as capable of nociception with responses consistent with pain experience

Welfare Considerations

Carp welfare has received less attention than salmonid welfare but deserves equivalent consideration. Their tolerance of poor conditions does not mean they experience no welfare harm - chronic crowding stress and painful harvest methods cause measurable suffering.

What You Can Do

Support development of carp-specific welfare standards in aquaculture certification
Advocate for humane harvest methods for carp including electrical stunning
Choose carp from certified producers where available
Learn about carp biology and welfare research to understand their sentience