Tilapia is among the most widely farmed fish in the world. Understanding welfare challenges in tilapia production is important for improving conditions for these animals.
Tilapia welfare in aquaculture receives relatively little attention despite the enormous scale of production. As cichlids with complex social behaviours, tilapia are poorly suited to the extreme crowding of intensive aquaculture; their territorial instincts mean high densities cause chronic social conflict and stress. Hormonal sex reversal for all-male production raises welfare questions about the process and its long-term effects on animal physiology. Water quality management is central to tilapia welfare since they are vulnerable to deteriorating conditions. Growing fish welfare science is beginning to address tilapia specifically, but standards and certification criteria for this important species remain underdeveloped.