40° 



PLANKTON VOLUMES 

 AUGUST I960 



CC. OF PLANKTON PER 1,000 M, 

 OF WATER STRAINED 



1-33 

 v.vv,,v, 34-100 

 ^*~ 101-300 

 ^B 301-900 



o STATIONS OCCUPIED 

 I 



Figure 11.— Plankton volumes, August 1960. 



41 



