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

International Journal of Fisheries and Aquatic Studies

2017, Vol. 5, Issue 5, Part A

Sex ratio, length-weight relationships and seasonal variations in condition factor of menoda catfish Hemibagrus menoda (Hamilton, 1822) of the Kangsha River in Bangladesh


Author(s): Ibrahim Shehu Jega, Md. Idris Miah, Mohammad Mahfujul Haque, Md. Shahjahan, Zoarder Faruque Ahmed and Mst. Kaniz Fatema

Abstract: Assessment of fish stock assists fisheries managers in taking decisions toward sustainable fisheries. The study was conducted to find out the sex ratio, growth pattern and state of physical well being of Hemibagrus menoda in the Kangsha River Netrakona, Bangladesh. Report on the aspects of reproductive biology of this species in Bangladesh has so far not been documented. A total of 79 fish samples were collected from March 2016 to February 2017. The overall sex ratio was female biased (1.30:0.97) though chi-square test did not reveal any significant difference (p<0.05) from the expected 1:1 ratio. Analysis of the morphometric characters indicated b value was higher in females in terms of standard length to total length. The exponential forms of the length-weight relationship was W= 0.00451L3.427 and W = 0.8658 L1.785 for females and males, respectively. The highest condition factor for female (0.53) and male (1.62) was recorded in September. For conservation and management of the H. menoda species it is recommended that restriction on fishing of this species should be ensured.

Pages: 49-54  |  817 Views  63 Downloads

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How to cite this article:
Ibrahim Shehu Jega, Md. Idris Miah, Mohammad Mahfujul Haque, Md. Shahjahan, Zoarder Faruque Ahmed, Mst. Kaniz Fatema. Sex ratio, length-weight relationships and seasonal variations in condition factor of menoda catfish Hemibagrus menoda (Hamilton, 1822) of the Kangsha River in Bangladesh. Int J Fish Aquat Stud 2017;5(5):49-54.
International Journal of Fisheries and Aquatic Studies