Some Biological Parameters of the Three Commercially Important Fishes in Ethiopian Water Bodies: A Review
Department of Biology, College of Natural and Computational Sciences, Ambo University, P. O. Box 19, Ambo, Ethiopia
International Journal of Aquaculture, 2018, Vol. 8, No. 13 doi: 10.5376/ija.2018.08.0013
Received: 20 Apr., 2018 Accepted: 09 May, 2018 Published: 18 May, 2018
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Preferred citation for this article:
Tesfahun A., 2018, Some biological parameters of the three commercially important fishes in Ethiopian water bodies: a review, International Journal of Aquaculture, 8(13): 98-103 (doi: 10.5376/ija.2018.08.0013)
The findings on length-weight relationship and condition factor of the native Varicorhinus beso, endemic Labeobarbus nedgia and the African catfish Clarias gariepinus showed varied pattern in different water bodies of Ethiopia. Labeobarbus nedgia and Clarias gariepinus showed isometric growth pattern in most water bodies of Ethiopia. The African scarping feeder V. beso had positive allometric growth pattern in some of Ethiopian Rivers (Dura and Ardi). But, isometric growth pattern was recorded in Beshilo River for the same fish species. Varicorhinus beso and L. nedgia had better body condition than C. gariepinus in all water bodies. Generally, the length-weight relationship and condition factor of fishes is correlated with availability of food, feeding rate, gonad development, spawning period, water quality parameters can determine the growth rate and the condition of fishes and therefore, further study is required regarding on the variations of length weight relationship and condition factor are they controlled by genes or human induced environmental factors for sustainable fishery activities in aquaculture or wild fishing.
Allometric growth; Biological parameters; Clarias gariepinus; Labeobarbus nedgia; Varicorhinus beso
International Journal of Aquaculture
• Volume 8