CC OF PLANKTON PER 1000 CM 

 OF WATER STRAINED 



---- 0-33 



34-100 

 H 101-300 

 H 301-900 

 ^1 OVER 900 

 o STATIONS OCCUPIED 



PLANKTON VOLUMES 

 NOVEMBER 1957 



Figure 14. — Plankton volumes, November 1957 



i 



54 



