Tilapia is the most widely farmed fish globally, primarily in developing countries. Welfare science for tilapia is less developed than for salmon, but basic principles of density, water quality, and humane slaughter apply.
Tilapia welfare receives far less scientific and regulatory attention than salmon or trout, partly because production is concentrated in lower-income countries with limited welfare frameworks. However, the scale of production — billions of fish annually — means that even marginal welfare improvements aggregate to enormous aggregate benefit. Basic welfare principles including appropriate stocking density, water quality management, and humane slaughter apply to tilapia as to other fish species. The development of welfare standards for tilapia is a priority given the species' global production scale and the underserved communities that depend on tilapia farming for livelihoods.