Gonadal restructuring during sex transformation in the protogynous greasy grouper Epinephelus tauvina (Forsskal) (Perciformes: Serranidae)


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Authors

  • Grace Mathew Central Marine Fisheries Research Institute

Abstract

This paper elucidates the developmental changes in the structure of the gonad during sex reversal in the greasy grouperEpinephelus tauvina (Forsskal). Sex transformation was induced artificially by administering the male hormone17 α-methyl testosterone to mature female fishes by adding the hormone to the feeding regime. The hormone treated fishesbecame mature males after the administration of a mean accumulated dose of 50-55 mg kg-1 body weight of fish, after9-12 weeks. Sex inversion was induced in both smaller and the larger fish, with no clear relationship with fish size and age.The study was carried out using histological techniques.

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Author Biography

  • Grace Mathew, Central Marine Fisheries Research Institute
    Principal Scientist, Mariculture, Central Marine Fisheries Research Institute

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Issue

Vol. 58 No. 1 (2011)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Mathew, G. (2011). Gonadal restructuring during sex transformation in the protogynous greasy grouper Epinephelus tauvina (Forsskal) (Perciformes: Serranidae). Indian Journal of Fisheries, 58(1), 39-44. https://epubs.icar.org.in/index.php/IJF/article/view/6625