PMID: 26767266Jan 16, 2016Paper

Oncomelania hupensis snail situation in wetlands surrounding reservoirs in hilly areas in Danling County

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control
Meng TangZi-song Wu

Abstract

To master the Oncomelania hupensis snail situation in wetlands surrounding reservoirs in hilly areas in Danling County, Sichuan Province, so as to provide the reference for improving the snail control in these areas. A medium-sized reservoir (Meiwan Reservoir) and a small-sized reservoir (Zhulinkan Reservoir) were chosen respectively , and the snail situation of the environments surrounding the reservoirs were investigated , the indexes such as the occurrence rate of frames with snails and the density of living snails at the upstream and downstream of the reservoirs as well as the surrounding environments were calculated and compared. Meanwhile , the data of the snail situation of the adjacent villages in the irrigation district at the downstream of the reservoirs year by year were collected to analyze the variation trend. The Meiwan Reservoir was located in the deep hill, the occurrence rate of frames with snails was 4.29%, the highest and average densities of living snails were 28.00 snails/0.1 m2 and 0.38 snails/0.1 m2, respectively. There was a statistically significant difference between the occurrence rates of frames with snails at the upstream and downstream, which were 0.17% and 22.16%, respectively (χ2 = 1,267.40, P < ...Continue Reading

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