Sex Steroid Levels in Porichthys notatus, a Fish with Alternative Reproductive Tactics, and a Review of the Hormonal Bases for Male Dimorphism among Teleost Fishes

@article{Brantley1993SexSL,
  title={Sex Steroid Levels in Porichthys notatus, a Fish with Alternative Reproductive Tactics, and a Review of the Hormonal Bases for Male Dimorphism among Teleost Fishes},
  author={Richard K. Brantley and John C Wingfield and Andrew H Bass},
  journal={Hormones and Behavior},
  year={1993},
  volume={27},
  pages={332-347}
}
Plasma levels of 11-ketotestosterone, 11-beta-OH-testosterone, testosterone, and 17-beta-estradiol were measured in reproductive Porichthys notatus, a teleost fish with two male morphs and alternative reproductive tactics. The two male types had contrasting androgen profiles. 11-Ketotestosterone was the predominant androgen in the Type I male morph which acoustically courts females, excavates nests, and guards eggs. Yet testosterone was predominant in the plasma of the Type II male morph which… CONTINUE READING
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