Genetic, Environmental & Hybrid Sex Determination

[gerald]

Some good discussion at the link below on the interaction of genetic and environmental factors in determining sex in Tilapia, including hybrids with a genetically skewed balance of testosterone vs estrogen. I'm guessing it's probably relevant to Apistos and many other cichlids too. It reminded me of Happy Fins's comment a few days ago about domesticated strains having skewed sex ratios - here's a mechanism to explain that phenomenon.
https://lakewaytilapia.com/Tilapia_Genetics.php