DIVERSITY AND SEASONAL VARIATIONS OF ZOOPLANKTON COMMUNITY IN KUNIGAL TANK, TUMKUR DISTRICT, KARNATAKA

Main Article Content

H. M. LALITHA
S. RAMAKRISHNA

Abstract

The limnological study is a pre-requisite in any aquatic system to evaluate its potentialities, to understand the realities between various water levels and food networks. Smaller water bodies like ponds, tanks are the important components of the landscape, are seriously threatened by climate change, eutrophication, and other anthropogenic activities Recently, Aquaculture is fast growing in many parts of India and in the world. Zooplanktons are the important component of the biotic habitat that influence the functional aspects and plays a key role in the food chain, nutrient recycling, and energy flow in the aquatic ecosystem. Zooplanktons are controlled by many factors, such as physico-chemical parameters, trophic status, pollution impact, and all kinds of interactions between biological communities. Members of the zooplankton's community are important for their role in energy transfer in trophic dynamics and water ecosystems. They provide food to fish in freshwater ponds and play a key role in lakes for fish production. Zooplankton diversity is one of the most important ecological parameters in water quality assessment. They are very sensitive to environmental changes and are therefore considered to be the potential indicators of water quality. The present investigation aims to study the zooplankton diversity for a period of two years from February 2014 to January 2016 in Kunigal tank to assess the species composition and seasonal variations of this faunal group. Diversity indices such as Shannon-Weiner Index and Simpson Index were calculated. On monthly basis, the water samples were collected from five sampling sites between 7 am to 9 am. 50 liters of water sample were collected, filtered through 60μm mesh size plankton net. The concentrated water sample was fixed and preserved in 4% formalin, one ml concentrated sample was transferred into Sedge-wick Rafter cell and counted under Olympus binocular microscope. Sample preserved in Lugol’s solution was centrifuged, sample from pellet was observed under digital microscope and planktons were photographed. The results revealed the occurrence of 25 species of zooplanktons belonging to four groups - Rotifera, Cladocera, Copepoda and Ostracoda. Rotifera is represented by 10 species belonging to 6 genera, Cladocera- 8 species belonging to 6 genera, Copepoda -5 species belonging to 5 genera and Ostracoda - 2 species belonging to 2 genera. Rotifera is dominant followed by Cladocera, Copepoda and Ostracoda species.  The percentage composition of zooplankton species was found as Rotifera > Cladocera > Copepoda > Ostracoda. Shannon-Weiner Index value of zooplanktons ranged between 2.0 - 3.0 and Simpson Index values between 0 and 1. Temperature was the main factor in the appearance and abundance of Rotifer species. Water temperature, dissolved oxygen, turbidity play an important role in controlling the diversity and density of Cladocerans. High population density of Copepoda during summer may be due to favourable temperature and availability of food. Maximum population density of Ostracoda during summer season may be due to water quality. Shannon-Weiner Index and Simpson Index values indicated the good diversity with less water pollution of the tank. This help in planning of successful fisheries management and to improve the productivity of the tank.

Keywords:
Physico-chemical parameters, zooplanktons, diversity, rotifera, Diversity indices, shannon-weiner index

Article Details

How to Cite
LALITHA, H. M., & RAMAKRISHNA, S. (2021). DIVERSITY AND SEASONAL VARIATIONS OF ZOOPLANKTON COMMUNITY IN KUNIGAL TANK, TUMKUR DISTRICT, KARNATAKA. UTTAR PRADESH JOURNAL OF ZOOLOGY, 42(24), 165-179. Retrieved from http://mbimph.com/index.php/UPJOZ/article/view/2677
Section
Original Research Article

References

Rajashekhar M, Vijaykumar K, Parveen Z. Zooplankton diversity of three freshwater lakes with relation to trophic status, Gulbarga district, North-East Karnataka, South India. International Journal of Systems Biology. 2009 ;1(2):32-37.

Nimbalkar RK, Kamtikar VN, Shinde SS, Wadikar MS. Studies on zooplankton diversity in relation to water quality of Ambe Ghosale lake of Thane city (MS), India. Bioscience Discovery. 2013;4(1):124-127.

Karuthapandi M, Rao DV, Innocent BX. Zooplankton Composition, Diversity and Physicochemical Features of Bandam Kommu Pond, Medak District, Telangana, India. In Proceedings of the Zoological Society, Springer India. 2016; 69(2): 189-204.

Jhingran VG. Fish and Fisheries of India, Hindustan Publ. Co., New Delhi. 1991;727.

Bhat NA, Wanganeo A, Raina R. The composition and diversity of net zooplankton species in a tropical water body (Bhoj Wetland) of Bhopal, India. International Journal of Biodiversity and Conservation. 2014 May 31;6(5):373-81.

Akhtar R, Sawhney JM, Singh R. Studies on population dynamics of cladocerans and copepods in Sarkoot Pond, Dist. Doda, Jammu and Kashmir. Journal of Aquatic Biology. 2007;22(2):15-8.

Koorosh J, Sadanand Yamakanamardi M, Altaff K. Abundance of copepods from three contrasting Lakes of Mysore, Karnataka, India. Journal Of Aquatic Biology. 2009; 24(2): 1-5.

Padmanabha B, Belagali SL. Ostracods as indicators of pollution in the lakes of Mysore. Journal of Environmental Biology. 2008;29(5):711-714.

Edmondson WT. Freshwater Biology, 2 nd. [ed], John Wiley & Son. Inc. New York-USA;1959.

Battish SK. Freshwater zooplankton of India. Oxford & IBH Publishing Company, New Delhi. 1992.

Dhanpathi MVSS. Taxonomic notes on the rotifers from India. Indian Association of Aquatic Biologists (IAAB) Hyderabad; 2000.

Altaff K. A manual of zooplankton. University Grants Commission, New Delhi. 2004:1-154.

Ramachandra TV, Rishiram R, Karthick B. Zooplankton as bioindicators: Hydro-biological investigations in selected Bangalore lakes, Centre for ecological sciences, Indian Institute of Science, Bangalore, Technical report, 2006: 93-115.

Needham and Needham. A guide to the study of freshwater biology, 4th (ed), Comstock publishing company, Newyork; 1941.

Federation WE, APH Association. Standard methods for the examination of water and wastewater. American Public Health Association (APHA): Washington, DC, USA. 2005.

Balakrishna D, Mahesh T, Samatha D, Ravinder Reddy T. Zooplankton diversityindices of Dharmasagar lake, Warangal district (AP). International Journal of Research in Biological Sciences. 2013; 3(3):109-111.

Ghosh D, Biswas JK. Zooplankton diversity indices: assessment of an ox-bow lake ecosystem for sustainable management in West Bengal. International Journal of Advanced Biotechnology and Research. 2015;6(1):37-43.

Thirupathaiah M, Samatha C, Sammaiah C. Diversity of zooplankton in freshwater Lake of Kamalapur, Karimnagar District, (AP) India. The Ecoscan. 2011;5(1&2):85-87.

Patel V, Shukla SN, Patel VK. Studies on the diversity of zooplankton and their seasonal variation in Govindgarh Lake at Rewa, Madhya Pradesh, India. Indian Journal of Applied Research. 2013;3:544-546.

Bashini JM, Pandiammal S, Senthilkumar P. Seasonal variation in zooplankton with reference to physic-chemical conditions in temple pond at Thiruvottiyur, Chennai. Journal of Environmental Science, Toxicology and Food Technology.0 2017;11(7):1-5.

Sitre SR. Assessment of biodiversity of rotifers in Ambazari lake of Nagpur city with respect to water quality, International Interdisciplinary Research Journal. 2012; 2:104-110.

Hulyal SB, Kaliwal BB. Water quality assessment of Almatti Reservoir of Bijapur (Karnataka State, India) with special reference to zooplankton. Environmental Monitoring and Assessment. 2008 Apr;139(1):299-306.

Jayabhaye UM. Studies on zooplankton diversity of river Kayadhu, near Hingoli city, Hingoli distict, Maharastra. International Research Journal. 2010;2: 11-12.

Rajashekhar M, Vijaykumar K, Paerveen Z. Seasonal variations of zooplankton community in freshwater reservoir Gulbarga District, Karnataka, South India. International Journal of Systems Biology. 2010;2(1): 6-11.

Deshmukh BS, Pingle SD. Hydrobiological study of Wilson dam water, District Ahmednagar (MS), India. Ecology Environmental and Conservation. 2007;13(4):709.

Edmondson WT. Reproductive rate of planktonic rotifers as related to food and temperature in nature. Ecological Monographs. 1965;35(1):61-111.

Farshad H, Venkataramana GV. Impact of physico-chemical parameters of water on zooplankton diversity in Nanjangud industrial area, India. International Research Journal of Environmental Science. 2012; 1:37-42.

Siddaram L, Reddy RB, Vijaykumar K, Reddy N. Diversity and abundance of zooplankton in Hattikuni Reservoir, Yadgir District, Karnataka. Indian Streams Research Journal. 2016; 6 (5); 1-11.

Majagi S, Vijaykumar K. Ecology and abundance of zooplankton in Karanja reservoir. Environmental Monitoring and Assessment. 2009 ;152(1): 451-458.

Pennak RW. Diurnal movements of zooplankton organisms in some Colorado mountain lakes. Ecology. 1944;25(4):387-403.

Kanagasabapathi V, Rajan MK. A preliminary survey of Plankton in Irrukkangudi Reservoir, Virudhunagar District, TN, India. Journal of Phytology. 2010;2(3):63-72.

Pawar RT. Zooplankton diversity and seasonal variation of Majalgaon reservoir, Maharashtra state, India. International Journal of Environmental Sciences. 2016;6(5):859- 866.