Phytoplankton diversity of a de-mineralized subtropical reservoir of Meghalaya state, northeast India

Bhushan Kumar Sharma; Sumita Sharma

doi:10.3153/AR21018

EN

Phytoplankton diversity of a de-mineralized subtropical reservoir of Meghalaya state, northeast India

Abstract

This study monitors the spatio-temporal variations of phytoplankton of a soft-water and de-mineralized reservoir of Meghalaya state of northeast India. Phytoplankton assemblages of the littoral and limnetic regions reveal total 36 species and diverse desmids, and contribute dominantly to net plankton abundance. Our results record the quantitative importance of Charophyta > Bacillariophyta > Dinophyta and Charophyta > Dinophyta, and the ‘specialist’ nature of 11 and six species at the littoral and limnetic regions, respectively. Staurastrum spp. and Cosmarium spp. are notable taxa. Phytoplankton indicates moderate species diversity and depicts dominance and evenness variations. The individual abiotic factors exert differential influence on various taxa at the two regions and the canonical correspondence analysis registers 73.02 and 71.14% cumulative influence of 10 abiotic factors on the littoral and limnetic assemblages, respectively. The spatial differences of phytoplankton composition, richness, abundance, important groups and taxa, specialist species, diversity indices and the influence of individual abiotic factors are hypothesised to habitat heterogeneity amongst the sampled regions. This study records notable temporal differences of phytoplankton richness, abundance, diversity and the role of abiotic factors vis-a-vis the limited survey of November 1990–October 1991.

Keywords

Supporting Institution

North-Eastern Hill University

Thanks

The senior author thanks the Head, Department of Zoology, North-Eastern Hill University, Shillong for laboratory facilities and to various research students for the field work help on several occasions.

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Details

Primary Language

English

Subjects

Hydrobiology

Journal Section

Research Article

Authors

Bhushan Kumar Sharma
0000-0002-8019-2684
India

Sumita Sharma ^*
0000-0002-1267-282X
India

Publication Date

July 1, 2021

Submission Date

October 18, 2020

Acceptance Date

January 13, 2021

Published in Issue

Year 2021 Volume: 4 Number: 3

DOI

https://doi.org/10.3153/AR21018

IZ

https://izlik.org/JA66UK83KX

Cite

RIS / Bibtex

APA

Sharma, B. K., & Sharma, S. (2021). Phytoplankton diversity of a de-mineralized subtropical reservoir of Meghalaya state, northeast India. Aquatic Research, 4(3), 233-249. https://doi.org/10.3153/AR21018

Öz

Phytoplankton diversity of a de-mineralized subtropical reservoir of Meghalaya state, northeast India

Abstract

Keywords

Supporting Institution

Thanks

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite