不同温度对江苏省嗜人按蚊发育的影响

Impact of different temperatures on development of Anopheles anthropoghagus in Jiangsu Province

目的观察不同温度下嗜人按蚊发育与繁殖情况,为疟疾流行病学及适时灭蚊提供理论依据。方法在温度为16、19、22、25、28、31℃的条件下,观察实验室饲养嗜人按蚊的卵期、幼虫、蛹期和生殖营养周期,计算不同温度下的全发育历期。结果嗜人按蚊在16℃时不能完成全发育周期,在温度为19、22、25、28、31℃时,全代发育时间分别为31.62、23.83、16.00、14.69d和13.89d。结论在温度范围为16～31℃时,嗜人按蚊的发育期随着温度升高而缩短,结果是否符合其他地区的嗜人按蚊种群,还有待进一步验证。

Objective To observe the development and breeding of Anopheles anthropophagus in Jiangsu Province under different temperatures,so as to provide theoretical evidence for malaria epidemiology research and vector control.Methods Anopheles anthropophagus was maintained under different temperatures of 16,19,22,25,28 and 31 ℃ in cultivator,and the development of egg stage,larva,pupal stage and reproductive and vegetative cycle were observed.Then the time of entire developmental cycle of Anopheles anthropophagus at different temperatures was calculated.Results Anopheles anthropophagus could not complete its entire life cycle under the temperature of 16 ℃,and it took 30.68,23.31,15.46,13.60 and 12.41 d to finish its life cycle at the temperatures of 19,22,25,28 and 31 ℃,respectively.Conclusions In the temperature range of 16 to 31 ℃,the developmental cycle of Anopheles anthropophagus in Jiangsu Province will be shortened when the temperature goes up,but whether the result can be extrapolated to other regions still needs to be verified.