Indian Journal of Science and Technology

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Spatio-temporal Distribution of Zooplankton in Chilka Lake- a Ramsar Site on the Indian East Coast


Affiliations
1 Department of Marine Sciences, Berhampur University, Bhanjabihar, Berhampur-760007. Orissa, India
2 Department of Environmental Sciences, Fakir Mohan University, Balasore, Orissa, India, India
 

The spatio-temporal variation in zooplankton species composition, population density and relative abundance in Chilka lake studied during pre-monsoon (May), monsoon (August) and post-monsoon (October) showed conspicuous fluctuations. The average population density varied between 218 and 1296 org. m-3; while the biomass values ranged from 1.72- 3.30 gm-3. Copepods, chaetognaths, cladocerans, mysids, lucifers, euphausids, siphonophores and sergestids have emerged as dominant groups. Copepods alone contributed nearly 70% of total density. The distribution of zooplankton found to be significantly influenced by salinity variations. Role of other physico-chemical parameters and food supply could also be taken as important factors influencing the sector wise distribution of zooplankton in the lake system.

Keywords

Chilka Lake, Zooplankton, Biomass, Abundance
User

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  • Spatio-temporal Distribution of Zooplankton in Chilka Lake- a Ramsar Site on the Indian East Coast

Abstract Views: 498  |  PDF Views: 84

Authors

Subrat Naik
Department of Marine Sciences, Berhampur University, Bhanjabihar, Berhampur-760007. Orissa, India
R. C. Panigrahy
Department of Marine Sciences, Berhampur University, Bhanjabihar, Berhampur-760007. Orissa, India
Anil Mohapatra
Department of Environmental Sciences, Fakir Mohan University, Balasore, Orissa, India, India

Abstract


The spatio-temporal variation in zooplankton species composition, population density and relative abundance in Chilka lake studied during pre-monsoon (May), monsoon (August) and post-monsoon (October) showed conspicuous fluctuations. The average population density varied between 218 and 1296 org. m-3; while the biomass values ranged from 1.72- 3.30 gm-3. Copepods, chaetognaths, cladocerans, mysids, lucifers, euphausids, siphonophores and sergestids have emerged as dominant groups. Copepods alone contributed nearly 70% of total density. The distribution of zooplankton found to be significantly influenced by salinity variations. Role of other physico-chemical parameters and food supply could also be taken as important factors influencing the sector wise distribution of zooplankton in the lake system.

Keywords


Chilka Lake, Zooplankton, Biomass, Abundance

References





DOI: https://doi.org/10.17485/ijst%2F2008%2Fv1i3%2F29228