Zooplankton Abundance based on taxa and life stages or size 
    Kendra Daly, PI 
   The size_fraction value was converted from a fraction to 
     only the denominator of the given fraction (i.e. 1/2 to 2). 
   Parameter name samp_fraction changed to samp_fraction_denom. 
     samp_fraction_denom contains a decimal value of 6.6667 representing 
     the fraction 3/20.   11/09/04  GFH 
   2002 volume filtered data has been corrected using OPC flowmeter 
     and all updated abundance data added.     :20080801 - njc