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: Ms Maria Kalentsits
Date Deposited: 31 Jan 2012 07:39
Last Modified: 31 Jan 2012 07:39
URI: http://aquaticcommons.org/id/eprint/7545

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