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The study was carried out on the biodiversity of freshwater insects in Meghalaya (northeast India). Seven different sampling points were selected: Umngot river, Umkhen River, paddy field (Mawryngkneng village), and Fish dale farm (Directorate of Fisheries), Puriang sung valley in East Khasi Hills District; Umiam River (Dwarksuid bridge) in Ri-Bhoi district; Dawki Wah Umngot in West Jaintia Hills District during August 2023 – January 2024 (including the three seasons summer, autumn, and winter). Insects were gathered every month by using a dip net having a mesh size of 500 µm. A total of 24 species of insects belonging to 16 families and 6 orders were found and the most abundant order was Hemiptera consisting of (25%), and followed by Odonata (21.3%), Coleoptera (15.74%), Megaloptera (14.81%), Ephemeroptera (12.96%), and Diptera (10.19%). This study attempts to emphasize that unregulated mixing of different pollutant in rivers and its effect on the freshwater insect’s biodiversity and rivers ecosystem of Meghalaya.
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Khyriem et al. (2024) studied this question.
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