Tilapia is one of the world's most widely farmed fish, produced in over 120 countries — with welfare challenges from crowding, poor water quality, and inhumane slaughter methods.
Tilapia welfare is largely unregulated globally. The species hardiness — it can survive in water conditions that would kill other fish — means it is often farmed at densities and in conditions that would not be permitted for salmon or trout in regulated markets. Stress, aggression from crowding, disease, and inhumane slaughter all cause welfare harm even in 'tolerant' species. The scale of tilapia production — billions of individuals annually — means even low per-individual welfare probability represents enormous total suffering. Consumer demand for certified welfare-conscious tilapia and advocacy for regulatory development are the primary levers for improvement.