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Direct Research Journals
Direct Research Journal of Agriculture and Food Science:Vol.4 (3), pp. 55-59, March 2016
ISSN: 2354-4147

Length -weight relationships of three commercial fish species in Jebel Aulia reservoir, Sudan
Article Number: DRJA50208002

Original Research Article

Mamoun Makawi Obeida1, Mohammed El Tahir Ali2,Fathi MirghaniYousif3 and Mujtaba El Khair Shuaib4*

1Administration of General Fisheries and Aquatic Resources, El jebelien Fisheries Station, White Nile State, Sudan.

2Ministry of Science and Technology, Animal Co-operation, Fisheries Research Center, P.O. Box. 1489, Khartoum, Sudan.

3Ministry of Animal Resources and Fisheries, Administration of General Fisheries and Aquatic resources, Natural Fisheries Department, Khartoum, Sudan.

4Fisheries and aquatic researches center, Animal Resources Researchers Council, Sudan Academy of Science, Sudan.

date Received: December 13, 2015     date Accepted: January 8, 2016     date Published: March 3, 2016


The aim of this study was to record the length-weight relationship of three commercial fish in Jebel Aulia Reservoir, Sudan. This study was conducted during a period from March 2008 to February 2009 on the three main fisheries sites of Jebel Aulia dam (45 Km South of Khartoum State), El hashaba, Kosti and El nuzul. Length weight relationships (LWR) of 1269 fish population covering three commercial fish species (Lates niloticus, Linnaeus, 1758; Oreochromis niloticus, Linnaeus, 1758 and Labeo niloticus Forskål, 1775) were measured and weighted. The parameters (a) and (b) of the length-weight relationship of the form W = a Lb are presented for three fish species. The values of the exponent (b) in the length-weight relationships were (2.98-3.05) Lates niloticus, (2.76-3.07), Oreochromis niloticus and (2.54-2.71) for Labeo niloticus. The coefficient of determination (r2) was very significant for all three commercial fish species.

Key words: Length – weight, commercial fish species, Jebel Aulia Reservoir.