30'U|i|i|i|i|i|i|Mi|iti|Mi|M 



~ 1 1 1 1 h 1 1 1 1 1 1 1 1 h 1 1 h 1 1 1 I.I 1,1,1,1,1,1,1 



Figure 23. Nitrate-nitrogen (^g-at/liter) concentration at 10 meters; Aug-Sep 1967, for the eastern 

 tropical Pacific. (Reproduced from EASTROPAC Atlas Vol. 6, Ref. 22). 



56 



