The
present investigation was carried out to determine the relationships between 28
physico-chemical parameters and phytoplankton population in Sulae lake (Maddur
taluk, Mandya district) for a period of two years. All the data were subjected
to Pearson’s Correlation matrix and later clusters were obtained to find out
the specific factor responsible for the growth of phytoplankton. Cyanophyceae
were dominant throughout the study period. The correlation matrix and cluster
analysis indicated that free carbon dioxide, dissolved oxygen and water
temperature are grouped as having the highest affinity; dissolved oxygen is
closely related to air temperature; while water temperature and pH form the
farthest affinity and are not responsible for he abundance of phytoplankton. The
cluster analysis serves as an important means in determining the pollution level
in the lake.
Address:
DOS in Botany DOS in Environmental Science
University of Mysore, Manasagangotri, Mysore 570 006
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