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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Sep 2011, 32 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Monthly changes in the abundanceandbiomass of zooplankton and

water quality parameters in Kukkarahalli Lake of Mysore,India

 

Author Details

 

Beenamma Joseph

Aquatic Microbial Ecology Research Laboratory, Department of Studies in Zoology,

University of Mysore, Manasagangotri, Mysore - 570 006, India

 

Sadanand M. Yamakanamardi (Corresponding author)††††††

Aquatic Microbial Ecology Research Laboratory, Department of Studies in Zoology,

University of Mysore, Manasagangotri, Mysore - 570 006, India

e-mail: mesadamy@gmail.com

 

 

 

Publication Data

Paper received:

13 April 2010

 

Revised received:

17 August 2010

 

Accepted:

24 September 2010

 

Abstract

Zooplankton abundance and distribution are of ecological importance, as they are very sensitive to change, therefore zooplankton make ideal indicators of aquatic ecosystem. This study carried out on the abundance of rotifer, cladoceran, cyclopoid-copepod and ostracod zooplankton groups and biomass of total zooplankton were studied every month for one year.It is interesting and noteworthy to note that Calanoid and Harpacticoid zooplankton groups and free carbon dioxide were completely absent in all the four sampling sites throughout the study year.About 53% of the variation in the abundance of Cladoceran, 55%of variation in the Cyclopoid -copepod,39% ofvariation in the ostracod and 53%of variation in theabundance oftotalzooplanktonwere†† mainlydue topH.Interestingly, negative relationship was found between the total zooplankton and concentration of phosphate as in this lake 67% decrease in wet biomass was mainly because of phosphate, where as 47% of dry biomass of total zooplankton was positively correlated with conductivity.

 

Key words

Plankton, Zooplankton, Biomass, Abundance, Water quality parameters

 

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