Seasons Months 2010 2011 Station I Station II Station I Station II Post monsoon January 32 45 45 48 February 60 60 52 58 March 50 68 48 52 Summer April 30 39 36 67 May 41 48 41 56 June 42 64 37 59 Pre monsoon July 45 62 41 45 August 52 69 50 85 September 57 102 56 115 Monsoon October 55 120 64 149 November 73 130 81 154 December 123 142 100 176

Table 11: Monthly variations of reactive silicate (µM) from January 2010 to December 2011.