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The Community of Parasites Infecting Clarias gariepinus in the Tanzanian Waters: A Case of Lake Victoria

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Quantitative variations in parasites were investigated with respect to sex and size of Clarias gariepinus, season and localities sampled. Parasitic infection in male and female fish was not significantly different; prevalence (Man-Whitney paired sample test, U = 135.5, p = 0.7697), mean intensity (U = 136, p = 0.7829). Based on Kruskal-Wallis test analysis, the prevalence and mean intensity of five parasite species varied significantly among the three localities sampled. Adult parasites in Clarias gariepinus showed high abundance during the dry season while the larval forms showed high abundance in the wet season. In most of the parasite species analyzed the abundance varied significantly with host size. The abundance of Dolops ranarum, Paracamallanus cyatopharynx and Eumasenia bangweulensis for instance, increased with fish size, while that of Diplostomum mashonense, Tylodelphys species, Astiotrema reniferum, piscicolid leeches and Monobothrioides woodlandi increased initially but decreased as fish length reached 31 - 40 cm. Total parasite burden increased in fish of 20 - 40 cm standard length. Generally, most parasites were highly overdispersed and the negative binomial model described their distribution.
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Mwita, C. (2014) The Community of Parasites Infecting Clarias gariepinus in the Tanzanian Waters: A Case of Lake Victoria. Open Journal of Ecology, 4, 873-882. doi: 10.4236/oje.2014.414073. 
 

[1] Eschmeyer, W.N. (2014) Catalog of Fishes: Genera, Species, References.
http://research.calacademy.org/research/ichthyology/catalog/fishcatmain.asp
[2] Eccles, D.H. (1992) FAO Species Identification Sheets for Fishery Purposes. Field Guide to the Freshwater Fishes of Tanzania. UNDP Project URT/87/016, Rome, 145 p.
[3] Skelton, P. (1993) A Complete Guide to the Freshwater Fishes of Southern Africa. Southern Book Publishers (Pty) Ltd., Halfway House, 388 p.
[4] Khalil, L.F. and Thurston, J.P. (1973) Studies on the Helminth Parasites of Freshwater Fishes of Uganda including the Descriptions of Two New Species of Digeneans. Revue de Zoologice et Botanice Africaines, 87, 210-247.
[5] Paperna, I. (1980) Parasites, Infections and Diseases of Fish in Africa. CIFA Technical Paper No. 7, 216 p.
[6] 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.
[7] Agnese, J.F. and Teugels, G.G. (2001) The Bathyclarias-Clarias Species Flock. A New Model to Understand Rapid Speciation in African Great Lakes. Comptes Rendus de l’Academie des Sciences de Paris, Sciences de la vie, 34, 683-688.
[8] Musiba, M.J. (2004) Some Aspects of the Life History of Diplostomum Species (Digenea: Diplostomatidae) Infecting Clarias Species (Clariidae) of Lake Victoria. M.Sc. Thesis, University of Dar-es-Salaam, 100 p.
[9] Agnese, J.F. and Teugels, G.G. (2005) Insight into the Phylogeny of African Clariidae (Teleostei: Siluriformes): Implications for Their Body Shape Evolution, Biogeography and Taxonomy. Molecular Phylogenetics and Evolution, 36, 546-553. http://dx.doi.org/10.1016/j.ympev.2005.03.028
[10] Moravec, F., Nasincova, V. and Scholz, T. (1991) Training Course on Fish Parasites: Methods of Investigation of Endoparasitic Helminths. Institute of Parasitology, Czechoslovak Academy of Science.
[11] Moravec, F., Nasincova, V. and Scholz, T. (1991) Training Course on Fish Parasites: Demonstration and Determination of Monogenea. Institute of Parasitology, Czechoslovak Academy of Sciences, 52 p.
[12] Chandler, M., Chapman, L.J. and Chapman, C.A. (1995) Patchiness in the Abundance of Metacercariae Parasitizing Poecilia gillii (Poeciliidae) Isolated in Pools of Intermittent Tropical Stream. Environmental Biology of Fishes, 42, 313-321. http://dx.doi.org/10.1007/BF00004925
[13] Margolis, L., Esch, G.W., Holmes, J.C., Kuris, A.M. and Schad, G.A. (1982) The Use of Ecological Terms in Parasitology (Report of an Ad Hoc Committee of the American Society of Parasitologists). The Journal of Parasitology, 68, 131-133. http://dx.doi.org/10.2307/3281335
[14] Byrne, C.J., Holland, C. and Tully, O. (1999) Metazoan Parasites Community Structure of Sea Trout on the West Coast of Ireland. Journal of Fish Biology, 55, 127-134. http://dx.doi.org/10.1111/j.1095-8649.1999.tb00662.x
[15] Shotter, R.A. (1980) Aspects of the Parasitology of the Catfish Clarias anguillaris, L. from a River and a Lake at Zaria, Kaduna State, Nigeria. Bulletin de l’Institut Fondamental d’Afrique Noire, Série A, Sciences Naturelles, 42, 837-859.
[16] Pennycuick, L. (1971) Quantitative Effects of Three Species of Parasites on a Population of Three-Spined Sticklebacks, Gasterosteus aculeatus. Journal of Zoological Society of London, 165, 143-162.
http://dx.doi.org/10.1111/j.1469-7998.1971.tb02179.x
[17] Reimchen, T.E. (2001) Ecological Causes of Sex-Biased Parasitism in Three-Spined Stickleback. Biological Journal of the Linnean Society of London, 73, 51-63.
[18] Bell, G. and Burt, A. (1991) The Comparative Biology of Parasite Species Diversity: Internal Helminths of Freshwater Fish. Journal of Animal Ecology, 60, 1047-1063. http://dx.doi.org/10.2307/5430
[19] Kennedy, C.R. (1990) Helminth Communities in Freshwater Fish: Structured Communities of Stochastic Assemblages? In: Esch, G., Bush, A. and Aho, J., Eds., Parasite Communities: Pattern and Processes, Chapman and Hall, London, 131-156. http://dx.doi.org/10.1007/978-94-009-0837-6_6
[20] Aloo, P.A. (2002) A Comparative Study of Helminth Parasites from the Fish Tilapia zillii and Orechromis leucostictus in Lake Naivasha and Oloidien Bay, Kenya. Journal of Helminthology, 76, 95-102.
http://dx.doi.org/10.1079/JOH2001105
[21] Amundsen, P.-A., Kristoffersen, R., Knudsen, R. and Klemetsen, A. (1997) Infection of Salmincola edwardsii (Copepoda: Lernaeopodidae) in an Age-Structured Population of Arctic Charr—A Long-Term Study. Journal of Fish Biology, 51, 1033-1046.
[22] Koie, M. (1999) Metazoan Parasites of Flounder Platichthys flesus (L.) along a Transect from the Southwestern to the Northeastern Baltic Sea. ICES Journal of Marine Science, 56, 157-163. http://dx.doi.org/10.1006/jmsc.1999.0463
[23] Tolonen, A., Rita, H. and Peltonen, H. (2000) Abundance and Distribution of Diphyllobothrium ditremum Creplin (Cestoda: Pseudophyllidae) Plerocercoids in Benthic Whitefish, in Northern Finnish Lapland. Journal of Fish Biology, 57, 15-28. http://dx.doi.org/10.1111/j.1095-8649.2000.tb00772.x
[24] Poulin, R. (2000) Variation in the Intraspecific Relationship between Fish Length and Intensity of Parasitic Infection: Biological and Statistical Causes. Journal of Fish Biology, 56, 123-137.
http://dx.doi.org/10.1111/j.1095-8649.2000.tb02090.x
[25] Brown, A.F. (1986) Evidence for Density-Dependent Establishment and Survival of Pomphorhynchus laevis (Muller, 1776) (Acanthocephala) in Laboratory-Infected Salmo gairdneri Richardson and Its Bearing on Wild Populations in Leuciscus cephalus (L.). Journal of Fish Biology, 28, 659-669.
http://dx.doi.org/10.1111/j.1095-8649.1986.tb05201.x
[26] Kennedy, C.R. (1984) The Use of Frequency Distributions in an Attempt to Detect Host Mortality Induced by Infection of Diplostomatid Metacercariae. Parasitology, 89, 209-220.
http://dx.doi.org/10.1017/S0031182000001244
[27] Anderson, R.M. and Gordon, D.M. (1982) Processes Influencing the Distribution of Parasite Numbers within Host Populations with Special Emphasis on Parasite-Induced Host Mortalities. Parasitology, 85, 373-398.
http://dx.doi.org/10.1017/S0031182000055347
[28] Pennycuick, L. (1971) Differences in the Parasites Infections in Three-Spined Sticklebacks, Gasterosteus aculeatus, L., of Different Sex, Age and Size. Parasitology, 63, 407-418.
http://dx.doi.org/10.1017/S0031182000079932
[29] Nkwengulila, G. (1995) Epidemiology and Taxonomy of Diplostomum Species (Trematoda: Diplostomatidae) Infecting Fish of Llyn Tegid, North Wales and Ruvu Basin-Tanzania. Ph.D. Thesis, University of Liverpool, Liverpool, 321 p.
[30] Marcogliese, D.J. (1995) The Role of Zooplankton in the Transmission of Helminth Parasites to Fish. Reviews in Fish Biology and Fisheries, 5, 336-371. http://dx.doi.org/10.1007/BF00043006            eww141028lx
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