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Year : 2021  |  Volume : 58  |  Issue : 2  |  Page : 119-125

Seasonal Diversity of mosquito species in Dakshina Kannada district, Karnataka, India

1 Department of Zoology, Vivekananda College, Puttur, Karnataka, India
2 ICMR-Vector Control Research Centre, Field Station, Madurai, Tamil Nadu, India
3 Department of Applied Zoology, Mangalore University, Karnataka, India

Correspondence Address:
K S Sreepada
Department of Applied Zoology, Mangalore University, Mangalagangothri- 574 100
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-9062.321758

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Background & objectives: Dakshina Kannada is one of the districts of Karnataka state of India with high incidences of mosquito-borne diseases, especially malaria and dengue. The larval stages of the mosquitoes are very important in determining the prevalence of adult mosquitoes and associated diseases. Hence, the occurrence of mosquito species was investigated by sampling different water bodies present in the Dakshina Kannada district from June 2014 to May 2017. Methods: Random sampling was carried out from permanent and temporary, artificial and natural water bodies belonging to 11 types of microhabitats using dippers and suction pumps. Results: A maximum of 37 mosquito species belonging to 12 genera were recorded with the dominant genera being Culex. Most species have been recorded from temporary bodies of water with the highest number of species in receptacles. Monsoon is the most productive season, both in terms of occurrence and abundance followed by post-monsoon and pre-monsoon. The abundance of mosquito larvae was significantly higher in temporary water bodies compared to the permanent. Interpretation & conclusion: Abundant rainfall in the study area which produces many natural and domestic temporary water bodies accounts for mosquito breeding throughout the year.

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