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

Impact Factor RJIF: 5.69
P-ISSN: 2394-0506, E-ISSN: 2347-5129

International Journal of Fisheries and Aquatic Studies

2022, Vol. 10, Issue 6, Part B

Population parameters and exploitation rates of four commercial fish species of Awach Kibuon River: Towards sustainable management of riverine fisheries of the Lake Victoria Basin


Author(s): George Owiti Osure, Albert Getabu, Christopher Mulanda Aura, Reuben Omondi and Evans Basweti

Abstract: The study estimated population parameters of four leading commercial fish species of Awach Kibuon River in Lake Victoria Basin, Kenya to inform management interventions for sustainability. Length data were collected monthly from January to December 2020 and length-frequency analysis conducted in FiSAT II software utilizing ELEFAN I Routines. Exploitation rates (E = 0.63) for Protopterus aethiopicus (Heckel, 1851) and (E = 0.56) for Clarias gariepinus (Burchell, 1822) indicate overfished stocks (E > Eopt) whereas exploitation rates (E = 0.31) for Synodontis victoriae (Boulenger, 1906) and (E = 0.32) for Oreochromis niloticus (Linnaeus, 1758) signify optimal exploitation (E = Eopt). There were year-round recruitments with bi-modal annual pulses in the populations of O. niloticus, S. victoriae, and P. aethiopicus. These results are crucial for sustainable management of riverine fisheries in the Lake Victoria Basin. This study recommends reduction of fishing pressure on P. aethiopicus and C. gariepinus to enhance their sustainability.

DOI: 10.22271/fish.2022.v10.i6b.2751

Pages: 87-92  |  627 Views  379 Downloads

Download Full Article: Click Here



International Journal of Fisheries and Aquatic Studies
How to cite this article:
George Owiti Osure, Albert Getabu, Christopher Mulanda Aura, Reuben Omondi, Evans Basweti. Population parameters and exploitation rates of four commercial fish species of Awach Kibuon River: Towards sustainable management of riverine fisheries of the Lake Victoria Basin. Int J Fish Aquat Stud 2022;10(6):87-92. DOI: https://doi.org/10.22271/fish.2022.v10.i6b.2751
International Journal of Fisheries and Aquatic Studies

International Journal of Fisheries and Aquatic Studies

Call for book chapter
International Journal of Fisheries and Aquatic Studies