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dc.contributor.authorMulongaibalu, Mbalassa
dc.date.accessioned2016-05-26T05:41:20Z
dc.date.available2016-05-26T05:41:20Z
dc.date.issued2016-01
dc.identifier.urihttp://hdl.handle.net/10570/4875
dc.descriptionA thesis submitted in partial fulfillment of the requirements for the award of the Doctor of Philosophy Degree of Makerere Universityen_US
dc.description.abstractThis study investigated the fish migrations in Lake Edward – Ishasha River water systems. The main objective was to examine the migration patterns of clarias gariepinus in Lake Edward and its adjacent water systems. The study intended to identify migratory habitats and spawning grounds for C. gariepinus, ascertain the fish migration periods and estimate the extent of migrations in the water systems. The study took into account the environmental factors (dry/wet seasons and rainfall) and measured limnological parameters to identify the parameters that influence the migration and spawning. The migration patterns were examined using the mark-recapture techniques. Fish were sampled twice seasonally with beach-seines in July – August; September – October 2011; February – March and; April – May 2012. A total of 1,103 C. gariepinus specimens were tagged with external T-bar Anchor tags and released at four estuarine sites. Fish were recaptured in different habitats using beach seines, gillnets, hooked lines, traps (baskets), spears and machetes. Relocations of 115 C. gariepinus were determined and spawning condition examined between September 2011 and December 2013 within the lake and its adjacent water systems. The study identified the river channels of Ishasha, Ntungwe, Nchwera, Bizibibi and Cyahulwa Rivers as migratory routes connecting C. gariepinus that migrate between the lake and the rivers’ respective marginal wetlands. Bizibibi and Kayanza – Kyondo littoral zones; Kihera and Bucundezi river mouths; Ntungwe river channel; Cyahulwa, Kinyozo, Ntungwe and , Namba Munana marginal wetlands were identified as the key spawning grounds of C. gariepinus, in the investigated water systems.en_US
dc.description.sponsorshipBelgian Technical Cooperation (BTC/CTB)en_US
dc.language.isoenen_US
dc.publisherMakerere Universityen_US
dc.subjectFishen_US
dc.subjectFish Migrationsen_US
dc.subjectLake Edwarden_US
dc.subjectIshasha Riveren_US
dc.subjectWater Systemsen_US
dc.subjectViruga Game Parken_US
dc.subjectQueen Elizabeth National Parken_US
dc.subjectNational Parks, Ugandaen_US
dc.titleFish migrations in Lake Edward-Ishasha River water systems in Virunga and Queen Elizabeth National Parksen_US
dc.typeThesis/Dissertation (PhD)en_US


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