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Histological study of the sex-change in the skunk clownfish Amphiprion akallopisos
Casadevall, M.; Delgado, E.; Colleye, O.; Ber Monserrat, S.; Parmentier, E. (2009). Histological study of the sex-change in the skunk clownfish Amphiprion akallopisos. The Open Fish Science Journal 2: 55-58. hdl.handle.net/10.2174/1874401X00902010055
In: The Open Fish Science Journal. Bentham Science Publishers: Hilversum. ISSN 1874-401X, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Casadevall, M.
  • Delgado, E.
  • Colleye, O., more
  • Ber Monserrat, S., more
  • Parmentier, E., more

Abstract
    Sex change in the protandrous fish Amphiprion akallopisos Bleeker, 1853 (F.Pomacentridae) has been analysed. Experiments consisted of placing males together after being separated from their mates, and observe changes in gonad histology at different periods, in order to identify signs of the sex change process. The presence of a first invagination on the male gonad wall, and the observation of the first cortical alveoli oocytes as an indication of the beginning of the vitellogenesis process, was the first symptom of the sex change, which has been detected after 18 days in one of the males. Period needed for the sex changing process was size independent. The process by which wall invagination is converted into ovarian lumen in the future mature ovary is also described.

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