Size-weight relationship of Hemichromis bimaculatus (Gill, 1862) from Lake Sologo, Korhogo, Ivory Coast
Paper Details
Size-weight relationship of Hemichromis bimaculatus (Gill, 1862) from Lake Sologo, Korhogo, Ivory Coast
Abstract
The aim of this study is to investigate the effect of anthropogenic pressures on the species Hemichromis bimaticulatus (Gill, 1862) caught in the Sologo dam lake. Sampling for this study to determine the status of Hemichromis bimaticulatus took place from May to July 2022, and the fish collected came from commercial fisheries. A total of 172 individuals grouped into mature (male and female) and immature specimens with standard lengths ranging from 3.5 cm to 10 cm and masses that varied from 2.1 g to 26.41 g were recorded. Length-mass relationships were determined by the equation P = aSLb and the condition factor by the relationship K = 100*W/SL. The coefficient of determination (r²) recorded for all individuals was 0.937, ranging from 0.894 to 0.954. The coefficient of allometry b and the average condition factor for this species ranged from 1.99 to 2.18 and from 3.02 ± 0.54 to 3.44 ± 0.8 respectively. The size frequency distribution showed that 64 % of species have a size between 7.75 cm and 9.05 cm. This study contributes to our knowledge of the biology of Hemichromis bimaticulatus and provides a database of particular growth and condition factors of the species Hemichromis bimaticulatus from the Sologo dam lake.
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