Effect of anthropogenic activities on diatom community in Umiam Reservoir, Meghalaya, India

Authors

  • Papiya Ramanujam Department of Botany, North Eastern Hill University, Shillong-793022
  • Pranita Hajong Department of Botany, North Eastern Hill University, Shillong-793022
  • M Wanlambok Sanglyne Department of Botany, North Eastern Hill University, Shillong-793022

Abstract

Umiam reservoir is an important tourist attraction in Meghalaya. Recent research by National water quality monitoring program (NWMP, 2019) state that water in the Umiam Reservoir is polluted and unfit for any domestic use except irrigation without conventional primary treatment. The pollution problem is further compounded with increased level of silt. Occurrence of algal bloom dominated by genera like Microcystis in few parts of the reservoir supported the CPCB norms (2014). Therefore, the present work was under taken to assess the water quality of the reservoir taking Diatoms present in the sediment as indicator algal group.The study of Diatom community structure in relation to sediment characteristics revealed the presence of 53 diatom species in the sediment collected from three selected sites. Species diversity value 3.64 in sediments in the undisturbed area confirmed the oligo-mesotrophic nature of the reservoir. But the trophic diatom index value of 60.00 in the sediment at river entry point where two rivers Umkhrah and Umsyrpi enter the lake with large amount of domestic waste from Shillong city clearly indicated the gradual degradation of the lake water. Therefore, taking appropriate measures to stop the deposition of wastes into two major rivers which ultimately reached the reservoir is an urgent need to maintain its pristine nature.

Keywords: Species diversity, Trophic Diatom Index, Algal bloom

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Published

2020-04-05

How to Cite

Papiya Ramanujam, Pranita Hajong, & M Wanlambok Sanglyne. (2020). Effect of anthropogenic activities on diatom community in Umiam Reservoir, Meghalaya, India. International Journal of Life Sciences, 8(1), 83–92. Retrieved from https://ijlsci.in/ls/index.php/home/article/view/175

Issue

Vol. 8 No. 1 (2020): International Journal of Life Sciences

Section

Research Articles

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Copyright (c) 2020 Papiya Ramanujam, Pranita Hajong, M Wanlambok Sanglyne

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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