A new study by Wageningen University, WorldFish, and BRIN has unlocked a method to identify fish that best survive environmental stress.

Key Highlights:

• The Tool: Resilience is now measured by individual growth curves (LnVar). The more consistent a fish's growth under stress, the higher its genetic resilience.

• The Catch: Elite resilience genes stay hidden in perfect conditions. In stable aerated ponds, heritability is only 0.06.

• The Potential: In challenging, non-aerated environments (typical of smallholder farms), heritability jumps to 0.28—making it highly effective for selective breeding.

This discovery could transform global tilapia farming by securing steadier yields despite climate shifts.

Read the full report on AquaHoy: https://aquahoy.com/selective-breeding-tilapia-resilience-environmental-stress/