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Environmental Biology of Fishes

, Volume 7, Issue 2, pp 137–142 | Cite as

Protogynous hermaphroditism and gonochorism in four Caribbean reef gobies

  • D. R Ross Robertson
  • Gustavo Justines
Article

Synopsis

The sexual structures of the populations of four Caribbean gobies were examined. Gobiosoma multifasciatum and Coryphopterus personatus are protogynous hermaphrodites, while G. illecebrosum and G. saucrum are gonochoristic. Sex changes were induced in females of the first two species in the laboratory, but not in females of the latter two species. The two hermaphroditic species live in large populations while the two gonochorists live in small groups. The significance of these findings to models of the evolution of protogyny are discussed.

Keywords

Sex change Population size Evolutionary models 

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Copyright information

© Dr W. Junk Publishers 1982

Authors and Affiliations

  • D. R Ross Robertson
    • 1
  • Gustavo Justines
    • 2
  1. 1.Smithsonian Tropical Research InstituteBalboaPanama
  2. 2.Departamento de Bíologia MarinaUniversidad de PánamaPanamaRepublica de Panama

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