Prevalence of biompiialar Snails and associated Sujisjosoma Mansoni in Kabaka’s Lake, Kampala, Uganda

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Date
2015-08
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Kampala International University, School of Natural and Applied Sciences
Abstract
This study determined the presence ofBiomphalaria snails and associated Schistosoma mansoni in Kabaka ‘s lake, Kampala, Uganda. It was based on the followingobjectives, to compare the level of Biomphalaria snails among the selected sample sites and to determine the percentage infrcled snails with Schislosoma mansoni in Kabaka ‘s lake. The study was conducted from Kabaka ‘5 lake, Kampalci. The study area was divided in 12 sites and selection of the sites was purpo~ive only targeting the potential breeding habitats for snails. Snail sampling was conducted at weekly intervals. The researcher used both hand picking and scoop net to collect snail samples. All sample sites had an equal measurement 0110 sq meters. Biomphalaria snails collected from each sample site were examined by cercarial shedding method. Each snail was placed separately into a (500 ml) glass beaker filled with tap water. The beakers were then exposed to 30 minutes period ofnatural bright sun light to induce shedding of cercariae. Each snail was careftully observed after being placed in natural light. Infected snails shed cercariae within 30 minutes after being placed in natural light. The total number of in/Cc/ed snails that shed cercariae were recorded according to site code and those that did not shed cercariae also were recorded as not infected snails. Data was analyze using excel and SF55. J’he result indicated that there is no significance difference in the level ofBiomphalaria snails among the selected sample sites and 1 7.9% of Biomphalaria snails in this study were in/Ccied wi/h Schistosoma mansoni which confirm it is presence in the lake. In cone/usion, results from this study indicated that Schistosoma mansoni intermediate hosts are still present within the lake. The continued presence ofthese snail species is a proxy /br disease. However, the snails were spread across the shores ofthe lake. There/öre, this jose a public health threat to the community surround the lake and more especially those that are having direct contact with water in the lake. Finally, the researcher recommended cf/Cctive water treatment be/öre its usage
Description
A disseriation submitted to the department of Environmental Management in Partial Fulfillment Of The requirements of the Award of a Degree of Master Of Science in Environmental Management of Kampala International University, Kampala Uganda
Keywords
Biompiialar Snails, Kabaka’s Lake, Kampala
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