Tilapia is one of the world's most widely farmed fish, yet welfare standards in tilapia production are almost entirely absent despite the fish's clear capacity for suffering.
Tilapia welfare is an almost entirely neglected area. The species' hardiness makes it suitable for intensive production but does not eliminate its capacity for suffering. Overcrowding causes fin damage, aggression, and chronic stress. Hormone sex-reversal treatment raises welfare questions about chemical manipulation of early development. The absence of any meaningful welfare certification for tilapia means consumers have no way to distinguish welfare-conscious production from the worst intensive systems. This is an area ripe for welfare improvement through certification and regulation.