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Ambisexuality in a South American cichlid: Satanoperca aff. leucosticta

Published online by Cambridge University Press:  15 July 1989

Maurice Loir ,
Chantal Cauty  and
Pierre-Yves Le Bail
Maurice Loir
Affiliation:
INRA, Laboratoire de Physiologie des Poissons, Campus de Beaulieu, 35042 Rennes Cedex, France
Chantal Cauty
Affiliation:
INRA, Laboratoire de Physiologie des Poissons, Campus de Beaulieu, 35042 Rennes Cedex, France
Pierre-Yves Le Bail
Affiliation:
INRA, Laboratoire de Physiologie des Poissons, Campus de Beaulieu, 35042 Rennes Cedex, France
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Abstract

Thirty eight Satanoperca aff. leucosticta were collected in French Guyana rivers and the histology of the gonads was studied. While the structure of the ovaries follows the general pattern known for other cichlids, previtellogenic oocytes are present in the outer layer of all the testes, whatever the spermatogenetic stage. These oocytes never grow nor mature. Histological observation of all of the gonads has not revealed whether this cichlid is hermaphroditic or gonochoristic.

Keywords

FishcichlidSouth AmericaambisexualityintersexualityhermaphroditismtestisovaryPoissoncichlidéAmérique du Sudambisexualitéintersexualitéhermaphrodismetesticuleovaire

Information

Type
Research Article
Information
Aquatic Living Resources , Volume 2 , Issue 3 , July 1989 , pp. 185 - 187
Copyright
© IFREMER-Gauthier-Villars, 1989

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