Pangasius Catfish Farming and Welfare

Pangasius catfish from Southeast Asia is one of the most consumed farmed fish globally, with welfare concerns around density and water quality.

Key Facts

Vietnam produces over 1 million tonnes of pangasius annually, making it a globally traded commodity
Pangasius farms operate at densities of 50 to 80 fish per cubic meter — extremely high by any welfare standard
Low oxygen levels in high-density ponds cause chronic hypoxia, affecting fish behavior and immune function
Pangasius are air-breathing fish that surface regularly — but crowding makes normal surface access difficult
Certification schemes including ASC (Aquaculture Stewardship Council) have developed standards but adoption is partial

Welfare Considerations

Pangasius welfare is a large-scale concern given the volume produced: at typical farm densities, billions of individuals experience chronic hypoxia and crowding stress. The fish can tolerate low oxygen conditions physiologically but still show stress responses. Reducing density and improving aeration would have significant welfare benefits at scale.

What You Can Do

Choose pangasius certified under ASC or equivalent standards where available
Advocate for mandatory density limits in pangasius import regulations for key consumer markets
Support independent monitoring of pangasius farm conditions to verify certification claims