Growth of Tylochromis Bangwelensis (Hump-Back Bream, Regan, 1920) in Bangweulu Lakes and Swamps Complex Fishery, Zambia

Kabundula Kahilu, Hangoma G. Mudenda and Cyprian Katongo
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Kabundula Kahilu: Department of Biological Sciences, University of Zambia, P. O. Box 32379, Lusaka,10101, Zambia
Hangoma G. Mudenda: Department of Biological Sciences, University of Zambia, P. O. Box 32379, Lusaka,10101, Zambia
Cyprian Katongo: Department of Biological Sciences, University of Zambia, P. O. Box 32379, Lusaka,10101, Zambia

International Journal of Research and Innovation in Social Science, 2023, vol. 7, issue 9, 1774-1783

Abstract: Growth of Tylochromis bangwelensis (hump-back bream) in Bangweulu Lakes and Swamps Complex Fishery was investigated. The ultimate objective was to determine growth parameters of T. bangwelensis in Bangweulu Lakes and Swamps in the fishery. A sampling area (S 11o 19’ 24.6†and E 029o 34’ 16.9†) that represented the main landing sites was selected. The fish samples were procured from the local fisher’s catches for seven months from March 2019 to September 2019. Length measurements were taken from each fish specimen using a fish measuring board to the nearest one millimeter. Weight was measured using an electronic balance to the nearest one gramme. The reproductive biology were investigated by examining fish sex and maturity stages of the gonads. Length frequency histograms were also used to determine spawning seasonality. Mean lengths representing each peak from peaks of length frequency histograms plotted for all the specimens were collected. Growth parameters L∞ and k of the species were determined using the Ford-Walford plot. The asymptotic length, L∞ was estimated at 348mm and growth coefficient k was found to be 0.837.

Date: 2023
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