Endo-helminths Infestation in Nile Perch, Lates niloticus, (L.,) and Nile Tilapia, Oreochromis niloticus (L.,) in Winam Gulf of Lake Victoria, Kenya


  • Thon C. C., Otachi O. E. and Oldewage A. A. Egerton University, University of Johannesburg


Prevalence, mean intensity, mean abundance, Oreochromis niloticus, Lates niloticus


Nile tilapia, Oreochromis niloticus (L., 1758) and Nile perch, Lates niloticus (L., 1758) were introduced into Lake Victoria in 1950, mainly to boost the fishing economy. Parasitic infections remain a major concern to the fish industry. It has recently been identified as an important public health problem with considerable economic impact. Data on parasitic infections on the two fish species is scarce; particularly in the Winam Gulf of Lake Victoria. Therefore, this study aimed at investigating the prevalence, mean intensity and mean abundance of endo-helminths infecting O. niloticus and L. niloticus in the Gulf. A total of 320 fish comprising 151 O. niloticus and 169 L. niloticus were caught weekly and transported alive to Egerton University. Prior to examination, fish were killed humanely by cervical dislocation. The total length were taken using a calibrated dissecting board and weights were obtained using a sensitive weighing balance (Sartorius ED4202S). Fish were dissected immediately and subjected to parasitological examination using standard procedures. Eleven parasite taxa were recovered from O. niloticus, with Tylodelphys sp. dominating the community. On the other hand, six parasite taxa were recordedfrom L. niloticus, with Armithalingamia macracantha dominating (P =5.3% MI = 4.6 and MA = 0.2). We conclude that L. niloticus had a poor parasite fauna, while O. niloticus had a rich parasite fauna. Despite the low infection level of Bothriocephalus acheilognathi and Heterophyes sp., are still the major parasites of concern, especially considering their potential zoonotic effect.

Author Biography

Thon C. C., Otachi O. E. and Oldewage A. A., Egerton University, University of Johannesburg

  1. Department of Biological Sciences, Egerton University, P.O Box 536, Egerton Kenya
  2. Department of Zoology, University of Johannesburg, P.O Box 524 Auckland Park, South Africa

Corresponding author: thonchol@yahoo.com +254718426866


ADF (African Development Fund) (2004). Fisheries Resources Development Plan Study. Agriculture and Rural Development Department; North, East and Southern regions. 83 pp.
Anderson, R. C. (2000). Nematode parasites of Vertebrates: Their Development and Transmission (2nd Ed). CABI Publishing.
Akoll, P., Konency, R., Mwanja, W. W., Schiemer, F. (2012). Infections patterns of Nile tilapia (O. niloticus L.1758) by two helminths species with contrasting life styles. Parasitology Research 110, 1461-1472 doi: 10.1007/s0043- 011-2649-0.
Aloo, P. A. (1999). Ecological studies of helminths parasites of the largemouth bass, Micropterus salmoides, from Lake Naivasha and the Oloidien Bay, Kenya. Onderstepoort. Journal of Veterinary Research 66:73-79.
Aloo, P. A. (2002). A comparative study of helminths parasites from the fish Tilapia zillii and Oreochromis leucostictus in Lake Naivasha and Oloidien Bay, Kenya. Journal of Helminthology 76:95-102.
Amare, A., Alemayehu, A., Aylate, A. (2014). Prevalence of Internal Parasitic Helminthes Infected Oreochromis niloticus (Nile Tilapia), Clariasgariepinus (African Catfish) and Cyprinus carpio (Common Carp) in Lake Lugo (Hayke), Northeast Ethiopia. Journal of Aquatic Research Development. 5:233 doi:10.4172/2155-9546.1000233.
Bekele, J. and Hussein, D. (2015). Prevalence of Internal Parasites of Oreochromis niloticus and Clarias gariepinus Fish Species in Lake Ziway, Ethiopia. Journal of Aquatic Research Development. 6: 308. doi:10.4172/2155-9546.1000308.
Biu, A. A. and Akorede, G. J. (2013). Prevalence of Endoparasites of Clarias gariepinus (Burchell 1822) in Maiduguri, Nigeria. Nigeria Journal of Fish Aquaculture: 1(1): 1-6.
Boomker, J. (1994). Parasites of South Africa Freshwater fishes. VII. Nematode of some scaled fishes of Hartbeespoort dam, Transvaal. Onderstepoort Journal of Vertebrate Research 60: 139-145.
Bootsma, H. A. and Hecky, R. E. (1993). Conservation of the Africa great lakes: a limnological perspective. Conservation Biology 7, 644–656.
Bush, A. O., Lafferty, K. D., Lotz, J. M. and Shostak, A. W. (1997). Parasitology meets ecology on its own terms: Margolis et al., revisited. Journal of Parasitology 83: 575-583.
Douëllou, L. (1992). A survey of fish parasites in Lake Kariba, Zimbabwe. Lake Kariba Research Project. Final Report. 71 pp.
Hussen, A., Tefera, M., and Asrate, S. (2012) Gastrointestinal helminths parasites of Clarias gariepinus (Catfish) in lake Hawassa, Ethiopia. Sci Journal of Animal Science 1(4): 131-136.
Magurran, A. E. (1988). Ecological Diversity and its measurement. Chapman and Hall. London, 192 pp.
Mahony, R. (1973). Laboratory techniques in zoology. London Butterworth.
Mbahinzireki, G. B. A. (1984). Parasito-Fauna of Haplochromine Species (Pisces: Cichlidae) from Mwanza Gulf of Lake Victoria. M.Sc. Thesis, University of Dar-Es-Salaam, 157 pp.
Musiba, M. J. (2004). Some Aspects of the Life History of Diplostomum Species (Digenea: Diplostomatidae) Infecting Clarias Species (Clariidae) of Lake Victoria. MSc Thesis, University of Dar-EsSalaam, 100 p.
Mwita, C. and Nkwengulila, G. (2004). Parasites of Clarias gariepinus (Burchell, 1822) (Pisces: Clariidae) from the Mwanza Gulf, Lake Victoria, Tanzania. Journal of Science 30, 53-62.
Mwita, C. (2014). Metazoan parasites of Clariid Fishes, Lake Victoria: Reflection of the original Fauna in the Lake? Journal of Natural Science, pp 651-658 doi: 10.4236/ns.2014.69064 Sep 06, 2014.
Ogutu-Ohwayo, R. (2004). Management of the Nile perch, Lates niloticus fishery in Lake Victoria in light of the changes in its life history characteristics. African Journal of Ecology 42:306-314.
Otachi, E. O., Magana, A. E. M., Jirsa, F. and Fellner-Frank, C. (2014).
Parasites of commercially important fish from Lake Naivasha, Rift Valley, Kenya. Parasitology Research 113, 1057-1067 doi: 10.1007/s00436-013-3741-4.
Otachi, O. E. (2009). Studies on occurrence of protozoan and helminths parasites in Nile tilapia (Oreochromis niloticus, L. 1578) from Central and Eastern Provinces, Kenya. MSc. Thesis, Egerton University, Nakuru, Kenya, pp 78.
Otieno, J. M. (2011). Fishery Value Chain Analysis. Background reportKenya, pp 23.
Paperna, I. (1974). Larval Contracaecum in the pericardium of fishes from East African lakes. Proceedings of Helminthological Society of Washington: 41: 252.
Paperna, I. (1980). Parasites, infections and Diseases of Fish in Africa. CIFA Technical paper, 7, 216 p.
Paperna, I. (1996). Parasites, infections and diseases of fishes in Africa: An update. FAO/CIFA Technical Paper, No. 31: 157–170.
Park, C. W., Kim, J. S., Joo, H. S. and Kim, J. (2009). A human case of Clinostomum complanatum infection in Korea. Korean Journal of . Parasitology: 47(4): 401404 10.3347/kjp.2009.47.4.401. PMid: 19967090.
Pringle, R. M. (2005. The Nile perch in Lake Victoria: Local responses and adaptations. Africa Forthcoming. Bioscience Vol. 55 No. 9.
Stables, J. N. and Chappell, L. H. (1986). Diplostomum spathaceum (Rud. 1819): effects of physical factors on the infection of rainbow trout (Salmo gairdneri) by cercariae. Parasitology 83: 71-79.
Sikoyo, G. M. (2004). Status of Lake Victoria ecosystems. In: Overview of shared aquatic ecosystems in East Africa. Status and trends (Eds).
Twong’o, T.K., Sikoyo G. W. and Wakhungu, J. W. pp. 4-40. Africa Centre for Technology Studies (ACTS), Nairobi, Kenya.
Vidal-Martinez, V. M., Osorio-Sarabia, D. and Overstreet, R. M. (1994). Experimental infection of Contracaecum multipapillatum (Nematoda: Anisakinae) from Mexico in the domestic cat. Journal of Parasitology: 80:576-579.
Witte, F. and Van Densen, W. L. T. (1995). Fish Stock and Fisheries of Lake Victoria. A Handbook for Field Observation, Samara Publishing House, Samara House, Cardigan, Dyfed, 404. pp 301-320.
WHO (1995). Control of foodborne trematode Infections. Geneva: 107 WHO
Technical Report Series 849




How to Cite

Thon C. C., Otachi O. E. and Oldewage A. A. (2019). Endo-helminths Infestation in Nile Perch, Lates niloticus, (L.,) and Nile Tilapia, Oreochromis niloticus (L.,) in Winam Gulf of Lake Victoria, Kenya. Egerton Journal of Science and Technology, 16(1-139). Retrieved from https://eujournal.egerton.ac.ke/index.php/EJ/article/view/25



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