Chin J Schisto Control ›› 2013, Vol. 25 ›› Issue (3): 322-.

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Simulation experiment of survival and reproduction of artificially imported Oncomelania snails in Qingpu District, Shanghai

TIAN Jian-guo1 | LI Gui-fu1 | LI Jun1 | ZHANG Xiao-ping2 | JIN Yan-jun2 | CAI Li 2 | PENG Li-xia2 |XU Hai-yan1 | XU Rui-fang1   

  1. 1 Qingpu District Center for Disease Control and Prevention|Shanghai City| Qingpu 201700|China 2 Shanghai Municipal Center for Disease Control and Prevention| Shanghai| China
  • Online:2013-06-24 Published:2013-06-24

上海市青浦区人工输入性钉螺生存模拟实验

田建国1|黎桂福1|李俊1|张小萍2|靳艳军2|蔡黎2|彭丽霞3|徐海燕1|徐瑞芳1   

  1. 1 上海市青浦区疾病预防控制中心 (上海201700); 2上海市疾病预防控制中心
  • 基金资助:

    上海市卫生局研究项目 (2010?193); 上海市青浦区卫生局研究项目 (W2010?4)

Abstract:

Objective To understand the survival of imported Oncomelania snails in new environments with different densi? ties in waterway net region,Qingpu District,Shanghai. Methods The snails collected from Guichi,Anhui Province were put in? to the ponds of 4 square meters and each had 25,50,100,200,400 and 800 pairs of snails, respectively. During the next 2 years,the temperature,humidity,the activities of snails and their second birth snails were investigated each day. All the data were analyzed statistically. Results The highest number of snails appeared from May to June on the surface of soils in different densities. The average numbers of snails were 2.0%-12.7% of whole put in snails,and the numbers of offspring were less than 2% of the whole put in snails. Conclusion The survival and reproduction of artificially imported Oncomelania snails from Guichi, Anhui Province is not good in Qingpu District, Shanghai.

Key words: Artificial import; Oncomelania snail;Simulation experiment;Lake region;Waterway net region; Shanghai

摘要:

目的 观察模拟条件下不同密度输入性钉螺在上海市青浦区的生存情况。方法 将采自安徽省贵池区湖沼地区的钉螺50、 100、 200、 400、 800、 1 600只 (雌雄各半), 于2010年11月分别随机投入面积为4 m2 的青浦区实验池中, 观察各实验池中土表钉螺及子代钉螺生存情况。结果 不同密度条件下观察到的土表钉螺最多为5~6月, 但各组平均螺数仅占投入数的2.0%~12.7%; 各组子代钉螺数仅占投螺数的2%以下。结论 来自安徽贵池区钉螺在本次实验中生存繁殖情况不良, 是否存在湖沼地区钉螺不能适应上海水网型地区环境的问题有待进一步研究。

关键词: 人工输入; 钉螺; 模拟实验; 湖沼地区; 水网地区; 上海

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