CAPE BLANCO 



PE MENDOCINO 



PLANKTON VOLUMES 

 JULY 1959 



CC OF PLANKTON PER IOOO M 5 

 OF WATER STRAINED 



0-33 

 34-100 

 101-300 

 | 301-900 

 OVER 900 

 o STATIONS OCCUPIED 



N FRANCISCO 



Figure 10.--Plankton volumes , July 1959. 



48 



