Morphological and molecular relationships of small barbs, barbus spp. (actinopterygii: cyprinidae) from Malagarasi and Pangani river basins, Tanzania

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dc.contributor.authorKamugisha, Geofrey Benjamin
dc.date.accessioned2019-10-07T06:15:02Z
dc.date.accessioned2020-01-07T15:44:48Z
dc.date.available2019-10-07T06:15:02Z
dc.date.available2020-01-07T15:44:48Z
dc.date.issued2013
dc.descriptionAvailable in print formen_US
dc.description.abstractAdjusted morphometric measurements, meristic counts, body shapes estimation and cytochrome b gene sequences were analyzed to establish the phylogenetic relationship among the three species of barbs namely; Barbus jacksonii, Barbus trimaculatus and Barbus paludinosus from Pangani and Malagarasi River basins. Conventional and geometric morphometrics, and molecular techniques were the tools used to resolve the overlapping phenotypic characters among the studied Barbus species. The Principal Component Analysis results showed that some individuals from B. paludinosus population have radiated morphologically and further that, B. paludinosus differed significantly from the other two species. The geometric morphometric technique indicated that, shape variations amongst the studied species were remarkable in both groups, the Tanzanian (Malagarasi and Pangani populations) and those from Kenya, Democratic Republic of Congo, Malawi, Zambia and Mozambique. The results of cytochrome b gene sequences analysis based on maximum parsimony method revealed that B. paludinosus from Hale and Pangani populations occurred in two distinct genetic lineages though separated by a distance of approximately 10 km apart. Similar findings were also noted amongst the population of B. paludinosus in Songati and Muumbara located on Lake Sagara in the Malagarasi River basin. The Barbus spp. from Africa included in the current study showed genetic affinity to neither European Barbus spp. nor South African redfins of the genus Pseudobarbus to conclude that the studied species of barbs are taxonomically quite different that needs further investigations to warrant renaming.en_US
dc.identifier.citationKamugisha, G.B (2013) Morphological and molecular relationships of small barbs, barbus spp. (actinopterygii: cyprinidae) from Malagarasi and Pangani river basins, Tanzania, Master dissertation, University of Dar es Salaam (Available at http://41.86.178.3/internetserver3.1.2/detail.aspx)en_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/1460
dc.language.isoenen_US
dc.publisherUniversity of Dar es Salaamen_US
dc.subjectBarbusen_US
dc.subjectCyrinidaeen_US
dc.subjectMalagarasi river basinen_US
dc.subjectPangani river basinen_US
dc.subjectTanzaniaen_US
dc.titleMorphological and molecular relationships of small barbs, barbus spp. (actinopterygii: cyprinidae) from Malagarasi and Pangani river basins, Tanzaniaen_US
dc.typeThesisen_US
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