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Table 1 Strength of correlation between different variables and algal density

From: Assessment of the physico-chemical quality and extent of algal proliferation in water from an impounding reservoir prone to eutrophication

Months Average rainfall (mm) Nitrate (mg/L) Orthophosphate (mg/L) Algae count (cells/mL)
February 187.5 0.5 0.04 7195
March 405.0 0.5 0.05 6313
April 301.8 0.5 0.06 6198
May 200.3 0.4 0.09 6013
June 106.9 0.4 0.12 3240
July 309.5 0.1 0.10 3501
August 195.2 0.1 0.05 3397
September 130.6 0.3 0.07 3504
October 85.6 0.1 0.02 1139
November 176.7 0.1 0.14 1186
December 520.4 0.1 0.13 6265
January 689.8 0.1 0.20 7260
Correlation coefficient (R) with algal count 0.6522 0.4875 0.1627