Diversity of Zooplankton in Lesser Himalayan River Gaula at District Nainital Uttarakhand

Rajni Mehra, Ranjeeta Arya



Zooplankton are small, microscopic, free-floating and weakly swimming animals found in all aquatic environments. They play an important role in aquatic food web and act as a vital food source for secondary and tertiary consumers. They also help to transfer energy lower to higher trophic level of organisms. Due to their shorter life span, large density, drifting nature and high species diversity they are being considered as indicator organisms for the physical, chemical and biological processes in the aquatic ecosystem. The present study was carried out on diversity of zooplankton in a lesser Himalayan river Gaula at Dist. Nainital Uttarakhand. A total 18 species of zooplankton were recorded in which 7 belong to Protozoa, 6 to Rotifera, 2 to Copepoda, 2 to Cladocera and 1 was belong to Ostracoda. Among them Protozoa was the most abundant group throughout the study period. During the present study it has been found that seasonal abundance of Zooplankton was highest during summer, moderate in winter and lowest during monsoon season.


Keywords: Zooplankton, Species Diversity, Abundance, Seasonal Distribution, Organisms, aquatic ecosystem.


Zooplankton, Species Diversity, Abundance, Seasonal Distribution, Organisms, aquatic ecosystem.


Battish, S.K. 1992. Freshwater Zooplankton of India. Oxford and IBH Publishing Co., New Delhi. 233 pages.

Christou, E.D. 1998. Interannual variability of copepods in a Mediterranean coastal area (Saronikos Gulf, Aegean Sea). Journal of Marine Systems, 15: 523-532.

Chaudhury, M.H., Das, U., Das, P. and Dev, A. 2017. Analysis of zooplankton diversity and physciochemical parameters of truncated part of Dhaleswari river Hailakandi, Assam, India. Life Sciences Leaflets Vol.No.87 pg. 30-35

Dede, A.N. and Deshmukh, A.L. 2015. Study on zooplankton composition and seasonal variation in Bhima river near Ramwadi village, Solapur District (Maharashtra), India. International Journal of Current Microbiology and Applied Sciences 4(3):2976-306.

Edmondson, W.T. 1959. Fresh water Biology. John Wiley and Sons. New York. 1248 pages.

Imoobe, T. O. T. and Adeyinka, M.L. 2009. Zooplankton-based assessment of the trophic state of a tropical forest river in Nigeria. Archives of Biological Sciences, Belgrade, 61 (4), 733-740.

Ishaq, F. and Khan, A. 2013. Comparative assessment of physic-chemical conditions and plankton diversity of Tons and Asan in Dehradun District of Uttarakhand. Advances in Applied Science Research.4(2):342-355.

Khanna, D.R., Bhutiani, R., Matta, G., Singh, V. and Bhadauriya, G. 2012. Study of planktonic diversity of river Ganga from Devprayag to Roorkee, Uttarakhand (India). Environment Conservation Journal 13 (1&2) 211-217.

Kumar, A. 2014. Studies on Zooplankton diversity with special reference to similarity and dissimilarity index in glacial fed mountainous Goriganga river of Kumaun Himalaya, Uttarakhand, India. Research Journal of Animal, Veterinary and Fishery Science. Vol. 2 (3), 22-29.

Malik, D.S. and Bharti, U. 2012. Status of plankton diversity and biological productivity of Sahastradhara stream at Uttarakhand, India. Journal of Applied and Natural Science 4(1): 96-103.

Mohan, M. 2004. Hydrobiological status of a lesser Himalayan river. Journal of the Indian Fisheries Association. 31, 2004, 1-12.

Pathani, S.S. and Upadhyay, K.K. 2006. An inventory on zooplankton, zoobenthose and fish fauna in the river Ramganga (w) of Uttaranchal, India. ENVIS Bulletin: Himalayan Ecology 14(2).

Pennak, R.W. 1978. Fresh-water invertebrates of the United States. 2nd ed. John Wiley and Sons, New York. 803 pages.

Watkar, A.M. and Barbate, M.P. 2013. Studies on zooplankton diversity of river Kolar, Saoner, Dist. Nagpur, Maharashtra. Journal of Life Sciences and Technologies Vol.1, No.1. Pg. 26-28

Full Text: PDF


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

COPYRIGHT of this Journal vests fully with the National Instional Institute of Ecology. Any commercial use of the content on this site in any form is legally prohibited.