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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

2015, Vol. 3, Issue 2, Part D

Length-weight relationship and condition factor of Heterobranchus bidorsalis (Geoffroy St-Hilaire, 1809) caught in Njaba River, Southeast, Nigeria


Author(s): Adaka GS, Olele NF

Abstract: The length-weight relationship of a fish has importance to aqua-culturist for its use in determining growth patterns between separate stocks of the same species or determining weight from established length. A total number of 211 specimens of Heterobranchus bidorsalis, were harvested from the River, for six month (January to June 2015). They comprised 55 males and 156 females, giving a sex ratio of 1:2.8 male to female specimens. The regression co-efficient was (2.79) for females, which revealed negative allometric growth while the males showed positive allometric growth with a value of (3.39). Significant differences (p˂0.05) existed between male (r2=0.76) and female (r2=0.71) specimens with regard to length weight relationship. Condition factor was (2.89 ± 0.68) for males and (0.79 ± 0.18) for females, showing that the males which had value greater than one and higher than value for females, were in better condition. It could be concluded that the males rather than the females were doing better in terms of wellbeing.

Pages: 279-282  |  816 Views  12 Downloads

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How to cite this article:
Adaka GS, Olele NF. Length-weight relationship and condition factor of Heterobranchus bidorsalis (Geoffroy St-Hilaire, 1809) caught in Njaba River, Southeast, Nigeria. International Journal of Fisheries and Aquatic Studies. 2015; 3(2): 279-282.
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