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International Journal of Fisheries and Aquatic Studies
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P-ISSN: 2394-0506, E-ISSN: 2347-5129

International Journal of Fisheries and Aquatic Studies

2023, Vol. 11, Issue 2, Part A

Reflecting onto the population dynamics of Hydrocynus brevis from Dadin: Kowa Reservoir


Author(s): Nazeef S and Yerima R

Abstract:
The population dynamics of Hydrocynus brevis from Dadin-Kowa reservoir were studied. Population dynamic parameters such as growth, mortality and recruitment patterns were analyzed using length frequency data over 12-month period employing FiSAT II software. Findings revealed that K = 1.7-yr., L∞ = 33.33 cm and Tmax = 1.76 years. Mortality indices revealed that the fish is slightly above exploitation threshold (F > Eopt ≤ 0.5). However; the major source of population decay is associated with natural factors (M = 2.87-yr.). Bimodal recruitment pulses were observed with Lm = 22.9 cm, Lc/ L∞ = 0.29. Restocking program is suitable to ensure its continuous existence as it seems to have low population, and experiencing recruitment overfishing.


DOI: 10.22271/fish.2023.v11.i2a.2787

Pages: 32-38  |  324 Views  145 Downloads

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International Journal of Fisheries and Aquatic Studies
How to cite this article:
Nazeef S, Yerima R. Reflecting onto the population dynamics of Hydrocynus brevis from Dadin: Kowa Reservoir. Int J Fish Aquat Stud 2023;11(2):32-38. DOI: https://doi.org/10.22271/fish.2023.v11.i2a.2787
International Journal of Fisheries and Aquatic Studies

International Journal of Fisheries and Aquatic Studies

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International Journal of Fisheries and Aquatic Studies