Figure 12. — Plankton Volume a 

 November 1956 



PLANKTON VOLUMES 

 NOVEMBER 1956 



CC OF PLANKTON PER 1000 CM 

 OF WATER STRAINED 



0-33 

 34-100 

 ipl 101-300 

 III 301-900 

 ^M OVER 900 

 o STATIONS OCCUPIED 



46 



