Proceedings of the International Academy of Ecology and Environmental Sciences, 2022, 12(2): 74-88
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Cyanobacterial diversity in different sites and seasons of Gossaigaon Subdivision, Assam, India

R. R. Basumatary1, M. Das1, R. Das1, S. I. Bhuyan2
1Department of Botany, University of Science and Technology, Meghalaya, India
2Department of Botany, Pandit Deendayal Upadhyaya Adarsha Mahavidalaya-Behali, Assam, India

Received 10 February 2022;Accepted 30 March 2022;Published 1 June 2022

The present study was carried out of cyanobacterial distribution in three different selected sites of Gossaigaon subdivision, BTR, Assam, India, during June 2015 - July 2016 covering four different seasons only in aquatic environment. Altogether 92 species, belonging to 34 genera and 10 families were found. The maximum number of species was recorded from the family Nostocaceae with 25 species. Among these 42 were simple non-heterocystous, 50 were heterocystous filamentous. Among non-heterocystous forms 36 species were unicellular colonial forms. Studies say habitats have distinct cyanobacterial microflora, but the different sites in different geographical regions evidently fluctuate in their diversity as well as in local climatic conditions. Cyanobacteria can be used for practical purposes in different ways. Even in many countries, cyanobacteria are harvested locally from lake, pond and river to use in different purposes.

Keywords Cyanobacteria;diversity;extreme habitat;Gossaigaon subdivision.

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