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首页> 外文期刊>Advances in Research >Environmental Parameters and Biomphalaria Snail Distribution along River Kochi, West Nile Region, Uganda
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Environmental Parameters and Biomphalaria Snail Distribution along River Kochi, West Nile Region, Uganda

机译：乌干达西尼罗河地区高知河沿岸环境参数和生物性蜗牛分布

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Aims: To explore the abundance and distribution of the common fresh water mollusks in River Kochi, with a special focus on Biomphalaria species, a vector responsible for transmitting Schistosoma mansoni to humans. Study Design: Across sectional study design was used. Place and Duration of Study: This study was conducted between October 2007 and March 2008 along Kochi River in Koboko, Yumbe and Moyo in the West Nile region of Uganda. Methodology: Five sites along the river approximately 20 km apart, were selected and data on snail abundance and various environmental variables thought to be influencing the distribution of snails along this river were collected. These variables included: altitude, season of the year, water flow velocity, water pH, water temperature and concentrations of total dissolved solids in the water. Results: Findings indicate that numbers of Biomphalaria species of snails increased with decreasing altitude (mean numbers 0, 15.33, 19, 50 & 73.33 from highest to lowest altitude points) and no snails of this species were recorded during the wet season. The abundance of Biomphalaria showed a positive relationship with pH (r=0.614) but negative with water velocity (r=-0.749). Conclusion: Altitude influences the distribution Biomphalaria snails and hence potential prevalence of schistosomiasis. Water users of Kochi River should therefore try to minimize contact with water in this river especially during the dry season. Local leaders should lobby to government for alternative sources of water during the dry season.
机译：目的：探索高知河中常见淡水软体动物的数量和分布，特别关注Biomphalaria种，这是一种将曼氏血吸虫传播给人类的媒介。研究设计：使用横断面研究设计。研究的地点和持续时间：该研究于2007年10月至2008年3月期间在乌干达西尼罗河地区Koboko，Yumbe和Moyo的高知河上进行。方法：沿河相距约20公里的五个地点进行了选择，并收集了有关蜗牛丰度和各种环境变量的数据，这些数据被认为会影响这条河沿岸蜗牛的分布。这些变量包括：海拔高度，一年中的季节，水流速，水的pH值，水的温度以及水中总溶解固体的浓度。结果：研究结果表明，随着海拔的降低，蜗牛的Biomphalaria种类数量增加（从最高高度到最低高度分别为0、15.33、19、50和73.33），并且在雨季没有记录到该种类的蜗牛。丰富的Biomphalaria与pH呈正相关（r = 0.614），而与水流速呈负相关（r = -0.749）。结论：海拔高度会影响Biomphalaria蜗牛的分布，从而影响血吸虫病的潜在流行。因此，高知河的用水者应尽量减少与该河水的接触，特别是在干旱季节。在干旱季节，地方领导人应游说政府寻求替代水源。

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