Pangasius (tra catfish) from Vietnam is one of the world's most traded fish, but welfare standards in its production have historically been poor and reforms are urgently needed.
Pangasius welfare is one of the most significant welfare issues in global aquaculture by sheer volume of animals involved. At production volumes exceeding a billion individual fish annually and with stocking densities that create chronic crowding stress, the welfare burden is enormous. The fish's physiological tolerance for poor water quality has been exploited to enable intensification beyond what other species would survive, but tolerance does not imply indifference to suffering. Research confirms that pangasius show stress responses to crowding, handling, and disease. Certification programmes are beginning to drive improvements, but the majority of pangasius consumed globally is uncertified and produced under conditions that welfare scientists would consider inadequate.