Aquaculture

Pangasius Welfare: Conditions in Vietnamese Catfish Aquaculture

Welfare overview for pangasius (Basa/Tra catfish) — one of the most intensively farmed fish species globally.

Key Facts

Pangasius accounts for millions of tonnes of production annually, primarily in Vietnam
Farm ponds are typically extremely high density — welfare implications are significant
Pangasius tolerate low oxygen levels better than many fish, but welfare may still be compromised at extreme densities
Stress during grading, transport and slaughter is a major welfare concern
Water quality degradation in intensive systems affects immune function and disease resistance
Slaughter by CO2 stunning or chilling is common — welfare of these methods is debated
Certification schemes (e.g., ASC) include some welfare provisions for pangasius
Research on pain sensitivity in pangasius is limited but consistent with vertebrate nociception

Welfare Significance

Pangasius is one of the most intensively farmed fish in the world. Welfare improvements are possible through reduced stocking densities, better water quality management, improved grading and handling, and adoption of more effective slaughter methods. Consumer awareness and certification scheme uptake can drive industry change.

What You Can Do

Choose ASC-certified pangasius where possible
Advocate for welfare improvements in certification standards for pangasius
Support research into pain and stress responses in catfish species
Reduce consumption of intensively farmed fish in favour of better-welfare alternatives