Seasonal variation of desmids diversity (zygnematales, zygnemaceae) from Jim Corbett National Park (JCNP), India Sharma Abhinav1,2, Toppo Kiran1,*, Gupta Rajan Kumar2 1Algology Laboratory Plant Diversity, Systematics and Herbarium, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India 2Laboratory of Algal Research, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, India *toppokiran@yahoo.co.in
Online Published on 11 May, 2022. Abstract The present paper is an exclusive contribution of the desmids flora of Jim Corbett National Park (JCNP), Uttarakhand, India. The study revealed 51 desmids taxa which included Cosmarium (29 taxa), Closterium (11 taxa), Euastrum (3 taxa), Cylindrocystis (2 taxa) and a single taxon of Micrasterias, Pleurotaeium, Penium, Staurastrum, Heimansia and Netrium were reported from the samples collected during January to December 2019 from JCNP. All these taxa have been recorded for the first time from the study area except two desmids -Cosmarium monoliforme and Closterium monoliformum reported earlier from our study site. Maximum desmids diversity occurred in winter season followed by monsoon, and minimum diversity were recorded in summer season. Physico-chemical parameters revealed water bodies of the park were ideal habitat for desmids. The trophic status of water bodies of the park were classified as oligotrophic (O), oligotrophic - mesotrophic (OM) and mesotrophic (M). The present study helps in serving desmids as bio indicator of freshwater aquatic ecosystem. Top Keywords Desmids, diversity, Jim Corbett National Park, Physico-chemical parameters, Trophic status. Top |