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E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2017, Vol. 5, Issue 2, Part E

Spatio-seasonal distribution and condition factors of Clarias buthupogon and Heterobranchus longifilis from Asa River, Nigeria


Author(s): Ogundiran Mathew Akinloye and Fawole Olatunde Olubanjo

Abstract: Studies on the spatio-distribution and condition factors of Clarias buthupogon and Heterobranchus longifilis from polluted Asa River, Ilorin, Nigeria was conducted, using standard laboratory procedures. The study was carried out between April, 2011 - March, 2013. The two fish species were well distributed in the river; C. buthupogon was found to be 49.26 % while H. longifilis was 50.74 % in compositions. The percentage catch of C. buthupogon for dry and rainy seasons were 27.77 % and 72.23 % respectively, while H. longifilis was 44.52 % and 55. 48 % respectively. Thus, more fishes were caught in the rainy season than in the dry season, and the fish populations were more concentrated in the downstream. C. buthupogon males has K value that ranged between 0.10±0.02 – 0.50±0.34 while the female ranged between 0.11±0.33 – 0.36±0.02 and their combined sexes recorded a range of 0.11±0.02 – 0.43±0.19. H. longifilis males ranged between 2.84±1.32 – 0.36±1.16; females had K values that ranged between 0.12±1.20 – 1.23±0.73, while combined sexes ranged between 0.35±0.01 – 2.84±1.99. In relation to standard length range (SLR), males, females and combined sexes of C. buthupogon had highest condition factor value at 10.0 – 14.9 cm and the least K values at 40.0 – 44.9 cm while males, females and combined sexes of H. longifilis had their highest K value at 15.0 – 19.9 cm and the least K value at 35.0 – 39.9 cm. The mean condition factor (K) value of C. buthupogon for males, females and combined sexes were 0.22, 0.18 and 0.21 respectively, while H. longifilis recorded mean K value of 1.05, 0.66 and 1.04 for male, female and combined sexes respectively, and this implied that C. buthupogon and H. longifilis female were not in good physiological condition in the river. The determination of k values of the two fish species in this aquatic system is useful in assessing the well-being, growth performance and feed utilization in natural systems. Therefore, low K values recorded in this work are indicative of poor quality of water in Asa River and this call for serious concern.

Pages: 343-349  |  602 Views  10 Downloads

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How to cite this article:
Ogundiran Mathew Akinloye, Fawole Olatunde Olubanjo. Spatio-seasonal distribution and condition factors of Clarias buthupogon and Heterobranchus longifilis from Asa River, Nigeria. Int J Fish Aquat Stud 2017;5(2):343-349.
International Journal of Fisheries and Aquatic Studies