grazing

 PI:             Hans Dam
 dataset:        Mesozooplankton grazing rates 
 project/cruise: EQPAC/TT012
 ship:           Thomas Thompson

 The data below represent weight-specific grazing rates of
 mesozooplankton as a function of day of year, size fractions
 of animals and depth interval for the time-series cruise TT012 of 
 the EqPac study.   All experiments were carried out at equator.

 Grazing was measured with the gut fluorescence technique. Details
 are given in the EqPac Protocols.  Mean GCRC (gut clearance rate 
 constant) of this cruise (0.030/min) was used.

 The grazing rates are the mean values of 2-5 pseudoreplicates from 
 each tow.  Contact Hans Dam for additional pseudoreplicate values.


 Parameter   Description                                   Units 

 yrday       day of year 1992
 event       event number from event log, a composite
             of month/day/time local Hawaii time
 sta         station number from event log
 depth_r     depth range/interval sampled                  meters
 sizefrac    size fraction/interval of organisms analyzed  millimeters	     
 graze_rate  grazing rate                                  milligrams pigment/milligrams body C/hour