Journal of East China Normal University(Natural Sc ›› 2017, Vol. 2017 ›› Issue (6): 156-163.doi: 10.3969/j.issn.1000-5641.2017.06.015

• Ecological and Environmental Science • Previous Articles    

Analysis on relationship between mosquito larvae breeding and river water environment in Shanghai

MA Ming-hai1,2, LIU Shan-wen1, HUANG Min-sheng1, LENG Pei-en3   

  1. 1. School of Ecology and Environmental Science, East China Normal University, Shanghai 200062, China;
    2. School of Life and Environmental Sciences, Huangshan University, Huangshan Anhui, 245041, China;
    3. Department of vector control, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, 200031, China
  • Received:2016-11-17 Online:2017-11-25 Published:2017-11-25

Abstract: Monthly data on water quality and larval density were obtained from 7 rivers in Shanghai from July 2012 to July 2013, in order to determine the effects of river water environment on the distribution and abundance of immature mosquitoes. Fuzzy clustering method was used for evaluation of river water quality. Correlation analysis of larval density and water quality was implemented. Results showed that 3 rivers were considered as positive rivers from total 7 rivers. Culex pipiens pallens was the predominant species in the studied regions. High incidence of larvae from urban rivers appeared in late spring-early summer and larval density reached a peak in May. Larval density was positively significant with dissolved phosphate (DP) (p <0.01). Moreover, larval density increased significantly with the increase of Chla concentration (p <0.05) when the concentration of chlorophylla (Chla) was lower than 80 mg/m3. Slow-flowing river might be a potential habitat for some mosquito species under the appropriate conditions of water environment.

Key words: river water environment, cluster analysis, mosquito larvae, relationship

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