DEPTH 

 (a) 



STATION 15 



OBSERVED 



TOTAL P 

 (ug at/1) 



PO^-P 

 (ug at/1) 



NO -N0 2 

 (W5 at/1) 



ARABINOSE 

 (mg/1) 



TYROSINE 

 (ag/1) 



INTERPOLATED 



90 



