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“Mirik Lake” is an artificial reservoir of Mirik town of the Darjeeling Himalayan region of West Bengal, India at an altitude of 1767 meters above mean sea level. This Lake was constructed in 1979 primarily for the facilitation of commercial tourism in Darjeeling and is fed by both perennial streams and rain water. The Lake is not only used for different recreational activities but also supplies drinking water to the local people of the Mirik Town. The Chlorophyceae constitute a large and diverse group of fresh water algae including members that are important ecologically and scientifically. Chlorophyceae are the photosynthetic organisms and one of the pioneer species in aquatic food web. Diversity of Chlorophyceae was studied in the Mirik Lake of Darjeeling Himalayan region for a period of two years at monthly basis from the surface water samples of seven selected sampling locations. A total of twenty five varieties of Chlorophyceae were recorded during the whole study period, of which Ankistrodesmus sp., Cosmarium sp., Chlorella sp. and Chlorococcum sp. were the most common species found throughout the year. Some pollution tolerant genera of Chlorophyceae were also observed during the investigation period among which Chlamydomonas sp., Scenedesmus sp. and Chlorella sp. were the most common indicator of anthropogenic pollution of the lake. The density of Chlorophyceae varied from 445 to 4596/ml and the highest diversity was recorded at sampling location 3 and 4. Highest density was observed at Site 3 and lowest density and diversity recorded in case of Site 2 might be due to greater anthropogenic activities of the site.

Chlorophyceae, water, Mirik Lake, density, diversity, pollution

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Kalita J, Bhuyan SI, Das R. An assessment of Green algae (Chlorophyceae) diversity in different habitats of RiBhoi, Meghalaya. The Pharma Innovation Journal. 2015;4(2):50-55.

Rao VS. An ecological study of three ponds of Hyderabad, India III. The phytoplankton, Volvocales, Chroococcales and Desmids. Hydrobiologia. 1975;47(2):319-337.

Subramanian G, Uma L. Cyanobacteria in pollution control. Journal of Scientific and Industrial Research. 1996;55:685-692.

Handa S, Jadhav R. Water quality of an urban wetland using phytoplankton diversity as an indicator. Case study of Mithi River. Proc. Natnl. Seminar on Wetlands: Present status, Ecology and Conservation. 2015;3(9):257–262.

Jakher GR, Bhargava SC, Sinha RK. Comparative limnology of Sambhar and Didwana Lakes (Rajasthan, NW India). Hydrobiologia. 1990;197:245-256.

Bais VS, Agarwal NC, Arasta T. Comparative study on seasonal changes in phytoplankton community in the Sagar lake and Millitary Engineering lake. Journal of Freshwater Biology. 1995;7:19-25.

Shrivastava NP, Das AK, Pandey BL, Nath D. Phytoplankton primary production and fish production potential of Tawa Reservoir. Journal of Inland Fisheries Society of India. 2002;34:23-29.

Sengar P, Singh GP, Sharma KP. Seasonal distribution of phytoplankton in Ramgarh reservoir, Jaipur, Rajasthan. Indian Journal of Environmental Sciences. 2009;13(2):167-169.

Barman D, Deka SJ, Barman B. Seasonal diversity and habitat characteristics of algae of wetlands in the West Garo Hill, Meghalaya, India. Research Journal of Recent Sciences. 2015;4:274-279.

Airsang RV, Lakshman HC. Diversity of Chlorophyceae related to physico-chemical parameters in Shetter lake of Navalgund, Dharwad District in Karnataka-India, Science Research Reporter. 2013;3(2):129- 134.

Padma Priya KT, Seeta Y, Reddy PM. Distribution and Diversity of Chlorophyceae in Saroornagar Lake, Hyderabad, IOSR Journal of Environmental Science, Toxicology and Food Technology. 2017;11(4):114-121.

Srivastava N, Suseela MR, Toppo K1, Lawrence R. Fresh water Algal diversity of Central India. International Journal of Research and Development in Pharmacy & Life Science. 2018;7(4):3039-3049.

Mondal D, Pal J. Diversity of cyanophyceae in the Mirik Lake of Darjeeling Himalaya, India. International Journal of Science and Research. 2014;3(12):2080-2083.

Mondal D, Pal J, Ghosh TK. Diversity of bacillariophyceae in the Mirik Lake of Darjeeling Himalaya. pp. 23-30.In: Das Biswas, R. and Sarkar, A. (eds.) Biodiversity and Sustainability: Opportunities and Challenges. Raiganj Surendranath Mahavidyalaya. West Bengal; 2015.

Dwivedi U. Over the hill: Lake pollution in Mirik. The Statesman (NB plus), August 14, Calcutta. 1998;4.

Desikachary TV. Cyanophyta. Indian Council of Agricultural Research, New Delhi; 1959.

Edmonson WT. Freshwater Biology, John Wiley & Sons. Inc., New York; 1959.

Ward HB, Whipple GC. Freshwater Biology, 2nd Edition. John Wiley and Sons, New York; 1959.

Prescott GW. How to know the freshwater algae, 3rd Edn. W.M.C. Brown Company Publishers, Dubuque, Iowa; 1978.

APHA. Standard methods for the examination of water and waste water, 21st Edition. American Public Health Association, Washington; 2005.

Palmer CM. A composite rating of algae tolerating organic pollution. Journal of Phycology. 1969;5:78-82.

Ayodhya D. Kshirsagar. Use of algae as a Bioindicator to determine water quality of river Mula from Pune City, Maharashtra (India), Universal Journal of Environmental Research and Technology. 2013;3(1):79-85.

Singh UB, Ahluwalia AS, Sharma C, Jindal R, Thakur RK. Planktonic indicators: A promising tool for monitoring water quality (early-warning signals). Ecology Environment & Conservation. 2013;19(3):793-800.

Verma R, Singh UB, Singh GP. Seasonal distribution of phytoplankton in Laddia Dam in Sikar district of Rajasthan. VEGETOS. 2012; 25(2):165-173.

Ansari E, Gadhia M, Surana R. Phytoplanktonic studies of village pond with reference to water quality. IJIRSET. 2013; 2(9):4458-4466.