Diversity and abundance of the parasite fauna of the catfish clarias cariepinus (burchell, 1822) (clariidae from the Mwanza Gulf, Lake Victoria.
| dc.contributor.author | Mwita, Chacha John | |
| dc.date.accessioned | 2019-11-08T05:38:58Z | |
| dc.date.accessioned | 2020-01-07T15:45:20Z | |
| dc.date.available | 2019-11-08T05:38:58Z | |
| dc.date.available | 2020-01-07T15:45:20Z | |
| dc.date.issued | 2002 | |
| dc.description | Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class mark (THS EAF QL638.I3T34M95) | en_US |
| dc.description.abstract | A parasitological study was carried out on 1071 Clarias gariepinus individuals from the Mwanza Gulf, between September, 2000 and September, 2001. A total of 18 parasite species were recovered; 5 nematodes, 6 nematodes, 3 cestodes, the Monogenea, Hirudinea and Crustacea were each represented by one species. Of the 18 species, 10 were identified to species level, 7 to the genus and 1 to family level. Spinitectus petterae is reported for the first time in C. gariepinus in Tanzania, while Tylodelphys species are reported for the second time. The parasite communities investigated were rich and diverse at all localities sampled. D. mashonense, Tylodelphys species, P. clarias and P. cyathopharynx form the core-species in the parasite communities studied. Diversity increased with fish size but decreased in the largest fish and was high during the dry season and low in the wet season. Most of the fish harboured 1 or 2 parasite species. The community was dominated by autogenic species (13/18) with 5/18 being allogenic species. The abundance of five parasite species was significantly different among the three localities sampled. Prevalence and mean intensity of most autogenic parasites were high during the dry season while that of allogenic parasites increased during the rainy season. Prevalence and mean intensity increased with increasing size of C. gariepinus. Higher abundances of P. clarias and P. cyathopharynx affected the condition factor of C. gariepinus through feeding competition. Along the gut, parasites diversity values were high in the stomach and small intestine, while the other sections of the gut were dominated by monospecific infection. Factors structuring the parasite community of C. gariepinus of the Mwanza Gulf are discussed. | en_US |
| dc.identifier.citation | Mwita, C. J. (2002). Diversity and abundance of the parasite fauna of the catfish clarias cariepinus (burchell, 1822) (clariidae from the Mwanza Gulf, Lake Victoria. Master dissertation, University of Dar es Salaam. | en_US |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/1635 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of Dar es Salaam | en_US |
| dc.subject | Catfishes | en_US |
| dc.subject | Disease | en_US |
| dc.subject | Mwanza Gulf | en_US |
| dc.subject | Lake Victoria | en_US |
| dc.title | Diversity and abundance of the parasite fauna of the catfish clarias cariepinus (burchell, 1822) (clariidae from the Mwanza Gulf, Lake Victoria. | en_US |
| dc.type | Thesis | en_US |