Weight-length relationships and condition factor of Atya gabonensis Giebel, 1875 in Bandama River - Côte d'Ivoire

Abstract

Growth characteristics for length and weight of Atya gabonensis Giebel, 1875 were calculated for a sample of 817 specimens collected along the Bandama River during 12 sampling surveys from August 2014 to July 2015. The relations between total length and weight of the females are determined by W = 0.0483TL 2.7338 for the dry season and by W = 0.1315 TL 2.29 for the rainy season; for males W = 0.0102 TL3.4341 for the dry season and W = 0.0181TL 3.2089 for the rainy season. Allometric coefficient “b” according to Student t-test, and Condition Factor (k), males of A. gabonensis (b > 3; k = 3.05 ± 0.62) are in better condition than females (b < 3; k = 2.67 ± 0.35).