Reproductive biology of big-eye grunt Brachydeuterus Auritus in Ivory coast fishery (West Africa)
Journal Title: Scientific Journal of Biological Sciences - Year 2016, Vol 5, Issue 5
Abstract
Reproductive biology of Big-eye grunt, Brachydeuterus auritus resulting from Ivory Coast marine fishery were studied by monthly sampling from August 2013 to July 2014. Samplings were carried out along the Ivorian littoral. A total of 731 fish with a body length of 8.0 to 22.7 cm folk length (LF) and body weight of 9.2 to 204.6 g were used for this study. According this study, the sex ratio was 1:0.82 (male to female). The sex ratio was significantly different from the expected theoretically 1: 1 distribution except June, September and December. Monthly gonadosomatic index and macroscopically determined gonad stages indicated that B. auritus spawned from February to July with a greater activity from February to May. The condition factor indicated that B. auritus were in good condition, females had higher condition factor than the males. Lengths at 50% maturity were similar with 12.93 cm LF for males and 12.71 cm LF for females. The coefficient b (3.02; 3.07 and 3.04 respectively for males, females and both sexes) of the length-weight relationship was reflecting isometry.
Authors and Affiliations
Soumaila Sylla*| Centre de Recherches Océanologiques (CRO), B.P.V 18 Abidjan, Côte d’Ivoire., Tizié Thierry Zan-Bi| Centre de Recherches Océanologiques (CRO), B.P.V 18 Abidjan, Côte d’Ivoire.UFR Environnement, Université Jean Lorougnon Guédé Daloa BP 150 Daloa, Côte d’Ivoire., Kouadio Justin Konan| Centre de Recherches Océanologiques (CRO), B.P.V 18 Abidjan, Côte d’Ivoire., Christian Bernard Tia| Centre de Recherches Océanologiques (CRO), B.P.V 18 Abidjan, Côte d’IvoireUFR Biosciences, Université Félix Houphouët Boigny Abidjan, 22 B.P. 582 Abidjan 2, Côte d’Ivoire.., Jean-André Tinkoudgou Kabre| Université de Bobo-Dioulasso, Institut du Développement Rural, Laboratoire de Recherche et de Formation en Pêche et Faune 01 B.P 1091 Bobo-Dioulasso 01, Burkina Faso., Tidiani Kone| UFR Environnement, Université Jean Lorougnon Guédé Daloa BP 150 Daloa, Côte d’Ivoire.
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- EP ID EP1131
- DOI 10.14196/sjbs.v5i5.2209
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