Mouthbrooding in the Black-Chinned Tilapia, Sarotherodon melanotheron (Pisces: Cichlidae): The Presence of Eggs Reduces Androgen and Estradiol Levels during Paternal and Maternal Parental Behavior

The black-chinned tilapia (Sarotherodon melanotheron) is considered a paternal mouthbrooder in which the male churns the eggs in his mouth for 14–18 days after they are fertilized. We previously showed that plasma androgen and estradiol concentrations increased significantly between the beginning an...

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