Research Article

Monitoring of river health using aquatic insects: A study on Jatinga River, North East India

Volume: 4 Number: 4 October 1, 2021
EN

Monitoring of river health using aquatic insects: A study on Jatinga River, North East India

Abstract

A biomonitoring study of River Jatinga located in south Assam, north east India was conducted for the first time. The study aimed to evaluate water quality of the river in different stretches using aquatic insect as bioindicators. Insect samples were collected from selected sites of midstream and downstream of the river during monsoon- post monsoon, 2018 and winter- pre monsoon, 2019. A total of 25 families of aquatic insects recorded from 8 orders; Gerridae was eudominant in midstream across all the seasons with highest percentage in winter. Hemiptera, the most diverse group was represented by six families with highest relative abundance. The study found that although both the sites were represented by same functional feeding groups, there were seasonal and spatial variations in the families of insects and their percentage occurrences. All the biotic indices, BMWPTHAI, SIGNAL2 scores, EPT % and HFBI have shown relatively better quality of water of the River Jatinga in the midstream than that in the downstream during monsoon and post monsoon seasons. Presence/absence and abundance of certain insect groups can provide information about health of the river.

Keywords

Thanks

Authors thank Department of Ecology and Environmental Science, Assam University, Silchar for providing necessary laboratory facilities. First author is thankful to the University for providing Institutional fellowship (non-NET).

References

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Details

Primary Language

English

Subjects

Hydrobiology

Journal Section

Research Article

Authors

Tanushree Chakravarty
0000-0003-4277-7451
India

Publication Date

October 1, 2021

Submission Date

February 3, 2021

Acceptance Date

May 19, 2021

Published in Issue

Year 2021 Volume: 4 Number: 4

APA
Chakravarty, T., & Gupta, S. (2021). Monitoring of river health using aquatic insects: A study on Jatinga River, North East India. Aquatic Research, 4(4), 363-375. https://doi.org/10.3153/AR21031

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