Aquaculture Welfare

Farmed Carp Stocking Density Welfare

Common carp is the world's most farmed fish by number, yet welfare standards rarely address stocking density. High densities cause aggression, oxygen depletion, disease spread, and stress in farmed carp.

Key Facts

Common carp aquaculture produces over 4 million tonnes annually worldwide
Optimal stocking density for carp welfare is poorly defined in research
High densities cause fin and scale damage from aggressive encounters
Oxygen depletion at high densities causes chronic physiological stress
Water quality management becomes increasingly challenging at higher densities

Welfare Considerations

Common carp farmed at high density experience chronic stress, physical injury, and increased disease susceptibility. Research defining welfare-appropriate stocking densities for carp is urgently needed to inform standards that most of the world's carp production currently lacks.

What You Can Do

Support aquaculture welfare research including commonly farmed carp species
Advocate for welfare standards that include all species at scale in aquaculture
Choose carp products from certified operations where available