Heterotrophic 

 I 00 2 00 3 00 



Nanoplankton (cells /mIXIO ) 



Au I otroprtlc 

 50 I 00 5 00 10 00 



• S»pt 17 CTD4 

 o Sept 17 Rl - R6 

 □ Sept 19 RI5-RI 

 ■ Sept 19 CTD 8 



Mt Desert Station 



Heterotroprie • Sept 18 CTDS 



o Sept 17-18 R7- R 12 



Autotrophe ■ Sept 18 CTDS 



a Sept 17- 18 R7- R 12 



Jordan Basin Station 



Figure 4. Depth profiles of numbers of autotrophic and 

 heterotrophic nanoplankton (cells/1 x 10 6 ) . 



189 



