Socially controlled sex-change in the half-moon grouper, Epinephelus rivulatus, at Ningaloo Reef, Western Australia

@article{Mackie2003SociallyCS,
  title={Socially controlled sex-change in the half-moon grouper, Epinephelus rivulatus, at Ningaloo Reef, Western Australia},
  author={Michael C. Mackie},
  journal={Coral Reefs},
  year={2003},
  volume={22},
  pages={133-142}
}
The cues controlling sex-change have been elucidated for various species of hermaphroditic fishes that inhabit coral reefs, but not for the epinepheline serranids. A male removal experiment conducted on an assemblage of the half-moon grouper, Epinephelus rivulatus, demonstrated that protogynous sex-change in this species is socially controlled, possibly by the suppressive dominance of males and a threshold sex ratio. The experiment showed that a reproductively ripe female can change sex and… CONTINUE READING
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