氯化钙对福寿螺卵块的杀灭作用  

Killing Action of Calcium Chloride on Egg Mass of Pomacea canaliculata

作　　者：陈泽柠 罗雪梅[1,2] 廖娴[1,2] 陈郭燕 武正军[1,2] 

机构地区：[1]广西珍稀濒危动物生态学重点实验室,广西桂林541006 [2]广西师范大学生命科学学院,广西桂林541006

出　　处：《广西师范大学学报（自然科学版）》2016年第1期156-161,共6页Journal of Guangxi Normal University:Natural Science Edition

基　　金：广西自然科学基金重大专项项目(2011GXNSFE018005);广西大学生创新创业训练计划资助项目

摘　　要：福寿螺为100种恶性外来入侵物种之一,然而目前缺乏有效杀灭其卵块的方法。本研究利用不同浓度的氯化钙溶液对福寿螺的卵块进行杀灭。室内研究结果显示:随着氯化钙溶液浓度的升高,福寿螺卵块死亡率增加(Y=6.547 6 X+6.785 7,df=8,r=0.958,p<0.001),在氯化钙浓度达到12g/L时,卵块的死亡率可达90%;在施药后的不同时间段,用清水对施药后的卵块冲洗1min,结果发现冲洗组的死亡率与未冲洗的空白对照组的死亡率无显著差异。室外实验结果显示,随着氯化钙溶液浓度的升高,福寿螺卵块死亡率增加(Y=1.523 8 X+26.763,df=6,r=0.931 9,p<0.001),在氯化钙浓度达到40g/L时,卵块的死亡率达到(93.33±2.89)%。以上结果表明,即使是在雨天条件下,氯化钙溶液也可有效杀灭福寿螺卵块,说明可通过对福寿螺卵块喷洒氯化钙溶液来有效杀灭福寿螺卵块。Pomacea canaliculatais one of the 100 most harmful invasive species in the world.However,efficient methods of killing the egg mass are not available up to now.In this study,different concentration of calcium chloride solution were used to kill the egg mass of P.canaliculata.The experiment results in laboratory showed that the death rate of the egg mass increased with the increasing of concentration of calcium chloride solution（Y=6.547 6 X＋6.785 7,df=8,r=0.958,P〈0.001）.When the calcium chloride solution concentrations reached 12g/L,the egg mass death rate was up to90%.In different times after applying calcium chloride solution,the egg mass were flushed by fresh water for 1 minute.The results showed that there was no significant difference between the flushing group and the no-flushing group.The results of the field experiments showed that the death rate of the egg mass increased with the increasing of concentration of calcium chloride solution too（Y= 1.523 8 X＋26.763,df=6,r=0.931 9,P〈0.001）.When the calcium chloride solution concentrations reached40g/L,the egg mass death rate was up to（93.33±2.89）%.All the results indicate that the calcium chloride solution can kill egg mass of P.canaliculata effectively,even in the rainy day.So,calcium chloride solution can be used to kill the egg mass of P.canaliculata.

关 键 词：氯化钙 福寿螺 卵块 杀灭作用 

分 类 号：X171.5[环境科学与工程—环境科学]