Water quality management in pangasius catfish aquaculture significantly affects fish welfare, with dissolved oxygen, ammonia, and temperature as key welfare determinants in intensive production.
Pangasius welfare illustrates the challenge of improving standards in a highly competitive, price-sensitive commodity market where certified producers face disadvantages relative to uncertified competitors. The species' tolerance of poor conditions has been used to justify intensive production that still causes welfare compromise — tolerance does not equal absence of suffering at suboptimal conditions. Certification schemes like ASC have created a market pull toward better standards among export-oriented farms, but the domestic and low-price export markets remain largely uncertified. Consumer purchasing decisions in importing countries have genuine leverage over pangasius welfare through certification demand.