Sexuality in Polydactylus indicus (Shaw)

Kagwade, P V (1974) Sexuality in Polydactylus indicus (Shaw). Indian Journal of Fisheries, 21 (2). pp. 323-329.


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    Sexuality and the apparent segregation of sexes of Polydactylus indicus are discussed. This species is a hermaphrodite throughout its life with gonochoristic ovotestis. Visual differentiation of sexes could be misleading; only microsections of gonads reveal the true identity of sexes. When the ovary is active, the testis in the same individual lies dormant and rudimentary and vice versa, leading to an erroneous identification of sexes. The spawning is inshore with one of the sexes dominant and hence are the earlier reports of concentration of one sex In the oxnmercial landings. Gametes retain potency long after exposure, signifying the possibility of artificial fertilization.

    Item Type: Article
    Uncontrolled Keywords: Sexuality in Polydactylus indicus (Shaw)
    Subjects: Demersal Fishes > Threadfin Breams
    Divisions: CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Depositing User: Dr. V Mohan
    Date Deposited: 21 Jun 2010 08:55
    Last Modified: 09 Sep 2015 15:10

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