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VOL. 9, ISSUE 4 (2024)
Occurrence and Distribution of aquatic insect population in two lentic water bodies of Chikmagalur district, Karnataka
Authors
Pushpa T C
Abstract
The present study summarizes the assessment of
aquatic insects conducted from February to December 2019 in two permanent tanks
of Chikmagalur district, Karnataka. This study enumerated 12 different species
belonging to 4 orders and 08 families in Mudagodu tank. Hemiptera and Coleoptera
consists of 4 species and Odonata and Diptera with 02 species each respectively.
However, Duglapura tank shows 13 species belonging to 12 genera, 03 orders and
07 families. Hemiptera consists of 06 species followed by Coleoptera (05
Species) and Odonata (2 species). In the present study, Hemiptera and
Coleoptera were found most diverse and relatively abundant in the both the
tanks. But Odonata and Diptera were least in both the tanks. The Shannon-Weiner
diversity index for aquatic insect in Duglapura tank nearer to 3.0 indicating
the good quality of the water. The values of Shannon diversity index at two tanks
viz., Mudagodu and Duglapura tanks are 1.298 and 2.978 respectively. The Simpson
values for richness and evenness of the two tanks are 0.92 and 0.85
respectively. Duglapura tank is less polluted compared to Mudagodu tank. It is
evident that the water in Mudagodu tank is deteriorated and it is unfit for
domestic usage. This study also indicated the occurrence of Chironomous
and mosquitoe culex of the Diptera are the index of water pollution. Thus the
present study needs an urgent and strict vigilance and continuous monitoring of
these perennial water bodies for conservation and sustainable management
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Pages:40-45
How to cite this article:
Pushpa T C "Occurrence and Distribution of aquatic insect population in two lentic water bodies of Chikmagalur district, Karnataka". International Journal of Entomology Research, Vol 9, Issue 4, 2024, Pages 40-45
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