Contact: +91-9711224068
International Journal of Fisheries and Aquatic Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2020, Vol. 8, Issue 5, Part B

Length-weight relationship and reproduction of fishes in Gilgel Abay, Andassa, Jemma and Koga Rivers, Blue Nile, Amhara region, Ethiopia


Author(s): Yibeletal Aynalem and Minwyelet Mingist

Abstract: Length-weight relationship, frequency distribution and reproduction of fishes in Gilgel Abay, Andassa, Jemma and Koga Rivers were studied by using gillnets and monofilaments of different mesh sizes, cast nets, hook and lines. Fish species identification was done by using literature and specimen deposited in the laboratory. Totally, 1106 fish specimens were collected from four Rivers. Three families and thirteen species of fishes were identified four Rivers. Labeobarbus intermedius, Varicorhinus beso, L. nedgia and Clarias gariepinus were the most dominant fish species found in both rivers. Length-weight relationship of L. intermedius, V. beso, L. nedgia and C. gariepinus were curvilinear and statically significant (p<0.001). There was significant difference in Fulton condition factor for the dominant fish species between Andassa and Gilgel Abay Rivers. Absolute fecundity of L. intermedius, L. nedgia and V. beso was linearly related to total length, total weight and gonad weight. Four seasons detail data should be collected to have clear understanding on the reproductive biology of fishes. Labeobarbus intermedius and V. beso were the first and second most abundant fish species that had a total length ranged from 16 to 53.5 and 22 to 54.5 cm at Andassa River and 19 to 48- 18.6 to 35.1 cm at Gilgel Abay River, respectively. Labeobarbus nedgia was the third most abundant species that had a total length ranged from 23.4 to 52.9 and 18.5 to 48 cm at Andassa and Gilgel Abay Rivers, respectively. The fourth most abundant fish species was C. gariepinus with a total length ranged from 28 to 66.5 and 22 to 58.5 cm in Andassa and Gilgel Abay Rivers, respectively.

Pages: 83-91  |  186 Views  35 Downloads

Download Full Article: Click Here

How to cite this article:
Yibeletal Aynalem, Minwyelet Mingist. Length-weight relationship and reproduction of fishes in Gilgel Abay, Andassa, Jemma and Koga Rivers, Blue Nile, Amhara region, Ethiopia. Int J Fish Aquat Stud 2020;8(5):83-91.
International Journal of Fisheries and Aquatic Studies