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Genetic, Environmental & Hybrid Sex Determination


Well-Known Member
5 Year Member
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.