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Cycle sexuel et fécondité du machoiron Chrysichthys nigrodigitatus en Lagune Ebrié, Côte d'Ivoire

Oteme, Z.J. (1993) Cycle sexuel et fécondité du machoiron Chrysichthys nigrodigitatus en Lagune Ebrié, Côte d'Ivoire. Journal Ivoirien d'Océanologie et de Limnologie, 2(1), pp. 61-67.

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    Abstract

    Changes in the seasonal development of the gonads of female Chrysichthys nigrodigitatus, in Ebrié lagoon (Côte d'Ivoire) are described over an annual reproductive cycle. Seven macroscopic stages of gonad maturity were identified. There is a major spawning period from July to November. The mature fish spawn only once during the breeding season. There was a slightly higher correlation between fecundity and fish length than between fecundity and fish weight or gonad weight. Fecundity estimates ranged from 5438 to 36257 eggs and from 4878 to 87724 eggs, respectively for the fish in captivity and those in the natural environment.

    Item Type: Article
    Title: Cycle sexuel et fécondité du machoiron Chrysichthys nigrodigitatus en Lagune Ebrié, Côte d'Ivoire
    Personal Creator/Author:
    CreatorsEmail
    Oteme, Z.J.
    Corporate Creator/Author: Centre de Recherches Océanologiques, Abidjan
    Journal or Publication Title: Journal Ivoirien d'Océanologie et de Limnologie
    Volume: 2
    Number: 1
    Page Range: pp. 61-67
    Date: January 1993
    ISSN: 1018-0354
    Issuing Agency: Centre de Recherches Océanologiques, Côte d'Ivoire
    Uncontrolled Keywords: Côte d'Ivoire; Chrysichthys nigrodigitatus; catfish; sexual cycle; fecundity;
    Subjects: Aquaculture
    Ecology
    Environment
    Item ID: 7545
    Depositing User: Mr Luigi Baldassari
    Date Deposited: 31 Jan 2012 08:39
    Last Modified: 31 Jan 2012 08:39
    URI: http://aquaticcommons.org/id/eprint/7545

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