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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

2016, Vol. 4, Issue 5, Part A

Monthly occurrence of nematode parasites of Synodontis species from rivers Niger-Benue confluence at Lokoja, Nigeria


Author(s): Florence Oyibo Iyaji and Clement Ameh Yaro

Abstract: This study was carried out to evaluate the monthly distribution of nematode parasites of Synodontis Fish species between March 2014 and February 2015. A total of 484 fish hosts were examined for nematode parasites microscopically using sedimentation method. A total of 326 (67.4%) were infected by nematode parasites. Five species of nematodes were encountered: Procamallanus laevionchus (37.81%, 183 fishes), Rhabdochona congolensis (15.08%, 73 fishes), Spinitectus guntheri (19.42%, 94 fishes), Camallanus spp (31.20%, 151 fishes) and Contracaecum spp (14.05%, 68 fishes) and larval nematodes (1.65%, 8 fishes). The highest prevalence of 57.9% and mean abundance of 11 ware recorded by Camallanus spp in October and August respectively. Monthly variation in prevalence revealed that P. laevionchus was highest in July. There was significant difference in infections of nematode parasites between rainy and dry seasons (P<0.05). The nematode parasites of Synodontis fish species are of high prevalence at the confluence of River and Benue.

Pages: 36-40  |  869 Views  18 Downloads

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How to cite this article:
Florence Oyibo Iyaji, Clement Ameh Yaro. Monthly occurrence of nematode parasites of Synodontis species from rivers Niger-Benue confluence at Lokoja, Nigeria. Int J Fish Aquat Stud 2016;4(5):36-40.
International Journal of Fisheries and Aquatic Studies