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目的了解三峡库区(重庆段)蚊类种群构成及密度的动态变化和季节消长规律。方法根据《三峡库区人群健康监测方案》,在固定的地点和时间,采用人工小时法捕捉蚊虫,进行蚊种鉴定并分类统计捕获的蚊虫数。结果三峡库区(重庆段)的优势蚊种依次为骚扰阿蚊(80.62%)、淡色库蚊/致倦库蚊(10.40%)、中华按蚊(5.84%)和三带喙库蚊(2.97%)。人房成蚊密度为32.08只/(间·人工小时),低于畜圈成蚊密度127.39只/(间·人工小时)。优势蚊种的季节分布均呈单峰型,最高峰在6-7月出现。结论 2008-2014年三峡库区(重庆段)成蚊密度总体处于相对平稳状态,应继续开展监测工作。
Objective To understand the dynamic changes and seasonal fluctuation of mosquito population structure and density in the Three Gorges Reservoir Area (Chongqing section). Methods According to the “Three Gorges Reservoir Area Health Monitoring Program”, artificial hours method was used to capture mosquitoes at a fixed place and time, and mosquito species were identified and classified according to the number of mosquitoes captured. Results The dominant species of mosquitoes in the Three Gorges reservoir area (Chongqing section) were A. halitis (80.62%), Culex pipiens pallens (10.40%), Anopheles sinensis (5.84%) and Culex tritaeniorhynchus %). Adult mosquito density of 32.08 / (inter-artificial hours), lower than the livestock ring adult mosquito density of 127.39 / (inter-artificial hours). The dominant mosquito species distribution showed a single peak, the peak appeared in June-July. Conclusion The density of adult mosquitoes in the Three Gorges Reservoir Area (Chongqing section) is relatively stable from 2008 to 2014. Monitoring work should continue.