Gisele Flodore Ghepdeu Youbouni¹, Anselme Crépin Mama², Ulrich Joël Félicien Bilounga1³, Emmanuel Henock Kwambe Dicka2⁴, Durane Tchatchouang Chougong⁴, François Tchoumbougnang⁵ and Anselme Crépin Mama3, Ulrich Joël Felicien Bilounga2, Emmanuel Henock Kwambe Dicka2, Durane Chougong Tchatchouang2, François Tchoumbougnang2. , (1)1Laboratory of Fisheries Research Specialized Research Station for Marine Ecosystems – SERECOMA - IRAD-KRIBI, P.O.Box : 219 Kribi-Cameroun, 2Fisheries Resources Laboratory, Institute of Fisheries Science, University of Douala, P.O.Box : 24157 Douala-Camer, Marine ecology, Kribi, Cameroon, (2)3Department of Oceanography, Institute of Fischeries and Aquatic Sciences, The University of Douala, Cameroon., Douala, Cameroon, (3)1Laboratory of Fisheries Research Specialized Research Station for Marine Ecosystems – SERECOMA - IRAD-KRIBI, P.O.Box : 219 Kribi-Cameroun, Kribi, Cameroon, (4)1Laboratory of Fisheries Research Specialized Research Station for Marine Ecosystems – SERECOMA - IRAD-KRIBI, P.O.Box : 219 Kribi-Cameroun,, Kribi, Cameroon, (5)2Fisheries Resources Laboratory, Institute of Fisheries Science, University of Douala, P.O.Box : 24157 Douala-Cameroun,, Douala, Cameroon