钉螺的生存需适量的水份，然而，水淹时超过８个月，则可危及钉螺生存，达到灭螺的目的［１］。有报道认为不同季节水淹对钉螺卵胎发育、钉螺增殖和生存均有一定的影响［２－４］。据预测分析三峡建坝后长江安徽段１－４月份水位将提高，这将意味着部分有螺滩地被提前水淹... Snails survive the need for the right amount of water, however, flooding more than 8 months, you can endanger the survival of snails to achieve the purpose of snail elimination [1]. It is reported that flooding in different seasons on snail oviparous development, snail proliferation and survival have a certain impact [2-4]. According to the prediction and analysis of the Three Gorges Dam, the Anhui section of the Yangtze River will raise the water level from January to April, which will mean that part of the conch is pre-flooded ...