BEERS ET AL. : PLANKTON AND UPWELLING OFF PERU 



Figure 1. — The time sequence of changes in the config- 

 uration of Patch 1 as shown by the mapping of the total 

 chlorophyll a and phaeopigments concentration (^g) 

 liter) in the surface (i.e., 3 m) waters. In Figures 1 

 and 2, all chlorophyll pigment values are less than 

 10 jug/liter and are shown with one figure to the right 

 of the decimal point. The decimal point is often difficult 

 to see. 



863 



