杭州市城区幼蚊及成蚊不同监测方法指数间相关性分析

doi:10.11853/j.issn.1003.8280.2020.01.007

摘要/Abstract

摘要： 目的研究布雷图指数（BI）法、双层叠帐法和诱蚊灯法指数之间的相关性，探索幼蚊及成蚊监测方法在杭州市城区环境中的适用性。方法 2017－2018年4－11月，选择杭州市上城、下城、西湖、江干和拱墅5个城区为监测点，每月分上下旬各监测1次，用BI法监测幼蚊密度，双层叠帐法和诱蚊灯法监测成蚊密度。计算BI、帐诱指数和灯诱指数，用Spearman秩相关分析各监测指数间的相关关系。结果 2017年4－11月杭州市BI季节变化呈单峰模式，4－6月逐渐升高，7－11月迅速下降；灯诱指数变化呈单峰型，6月最高为2.05只/（灯·夜）；帐诱指数4－6月逐渐升高，6月达到最高为2.93只/（顶·h）；2017年平均BI为9.28，帐诱指数为1.41只/（顶·h），灯诱指数为0.97只/（灯·夜）；BI、帐诱指数和灯诱指数之间呈正相关（BI和帐诱指数间r_s=0.398，P=0.012；BI和灯诱指数间r_s=0.681，P<0.001；帐诱指数和灯诱指数间r_s=0.517，P=0.001）。2018年4－11月杭州市BI整体处于较低水平，无明显季节消长规律；灯诱指数变化呈单峰型，9月最高为1.06只/（灯·夜）；帐诱指数4－7月逐渐升高，7月达到最高为4.88只/（顶·h）；2018年平均BI为3.83，帐诱指数为2.39只/（顶·h），灯诱指数为0.53只/（灯·夜）；帐诱指数和灯诱指数之间呈正相关（r_s=0.478，P=0.002），但二者与BI之间无相关性（BI和帐诱指数间r_s=0.249，P=0.122；BI和灯诱指数间r_s=0.165，P=0.308）。结论幼蚊与成蚊监测方法之间具有一定的相关性，两类监测方法均可有效反映城区蚊媒侵害程度。同时蚊媒监测方法易受外界条件影响，使用时需严格加强质控。

关键词: 布雷图指数法, 双层叠帐法, 诱蚊灯法, 相关性分析

Abstract: Objective To study the correlation between the Breteau index (BI) method, double mosquito net method, and lamp trapping method, and to explore the applicability of these surveillance methods for larval and adult mosquitoes in the urban environment of Hangzhou, Zhejiang province, China. Methods We selected five urban districts of Shangcheng, Xiacheng, Xihu, Jianggan, and Gongshu in Hangzhou as surveillance points, and conducted surveillance two times, respectively, in the first and last ten days of each month from April to November of 2017 and 2018. The density of immature mosquitoes was surveyed by the BI method and the density of adult mosquitoes were surveyed by the double mosquito net method and lamp trapping method. BI, double mosquito net index(DMNI), and lamp trapping mosquito index (LTMI) were calculated. The correlations between these surveillance indicators were analyzed by Spearman rank correlation. Results During April to November, 2017, seasonal variation in BI of Hangzhou showed a single-peak pattern, with BI gradually increasing from April to June and then declining rapidly from July to November; the change in LTMI also displayed a single-peak pattern, with the peak at 2.05 mosquitoes/trap·night in June; the DMNI increased gradually from April to June, reaching a maximum of 2.93 mosquitoes/net·hour in June; in 2017, BI, DMNI, and LTMI averaged 9.28, 1.41 mosquitoes/net·hour, and 0.97 mosquitoes/trap·night, respectively; there was a positive correlation between BI, DMNI, and LTMI (BI and DMNI, r_s=0.398, P=0.012; BI and LTMI, r_s=0.681, P<0.001; DNMI and LTMI, r_s=0.517, P=0.001). During April to November, 2018, BI in Hangzhou was generally at a low level, and there was no obvious seasonal variation; LTMI showed a single-peak pattern, with the peak at 1.06 mosquitoes/trap·night in September; DNMI increased gradually from April to July, reaching a maximum of 4.88 mosquitoes/net·hour in July; BI, DNMI, and LTMI in 2018 averaged 3.83, 2.39 mosquitoes/net·hour, and 0.53 mosquitoes/trap·night, respectively; there was a positive correlation between DNMI and LTMI (r_s=0.478, P=0.002), but neither of the two indicators was correlated with BI (BI and DNMI, r_s=0.249, P=0.122; BI and LTMI, r_s=0.165, P=0.308). Conclusion There is a certain correlation between surveillance methods for larval and adult mosquitoes, and both types of surveillance methods can effectively reflect the abundance of mosquito vectors in urban areas. At the same time, mosquito surveillance methods are susceptible to external conditions, and should be used under strict quality control.

Key words: Breteau index method, Double mosquito net method, Lamp trapping method, Correlation analysis

中图分类号:

R384.1

曹阳, 韦凌娅, 王慧敏, 孔庆鑫. 杭州市城区幼蚊及成蚊不同监测方法指数间相关性分析[J]. 中国媒介生物学及控制杂志, 2020, 31(1): 32-35.

CAO Yang, WEI Ling-ya, WANG Hui-min, KONG Qing-xin. The indices correlation analysis of surveillance methods for larval and adult mosquitoes in urban areas of Hangzhou, Zhejiang province, China[J]. Chines Journal of Vector Biology and Control, 2020, 31(1): 32-35.

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