Table 1. Stock of DOC and Excess DOC (ex-DOC) in the Surface Layer (0 m-D48DOC) Compared to the Stock of TOC and Excess TOC (ex-TOC) in the Surface Layer (0 m-D48TOC)


Station	D48DOCa (m)	Stock (molmiddotm-2)	ex-DOCb (muM)	ex-DOC (%)	D48TOCa (m)	Stock (molmiddotm-2)	ex-TOCb (muM)	ex-TOC (%)
DOC	ex-DOC	TOC	ex-TOC

St. UPW	59	3.32	0.50	8	15	-c	-c	-c	-c	-c
St. 1	71	3.88	0.48	7	12	115	6.61	1.08	9	16
St. 2	150	8.09	0.89	6	11	200	10.92	1.31	7	12
St. 3	142	7.94	1.12	8	14	151	8.68	1.44	10	17
St. 4	240	13.34	1.83	8	14	240	13.7	2.17	9	16
St. 5	156	8.99	1.50	10	17	155	9.15	1.71	11	19
St. 6	160	9.18	1.50	9	16	160	9.47	1.79	11	19
St. 8	130	7.41	1.15	9	16	151	8.73	1.50	10	17
St. 9	85	4.88	0.80	9	16	90	5.39	1.07	12	20
St. DYF	70	4.08	0.73	10	18	72	4.49	1.04	14	23

aD48DOC and D48TOC indicate the depth at which DOC and TOC were 48 +/- 0.5 muM. When the DOC or TOC value at this depth was not available, it was calculated by interpolating the available data. At St. UPW, DOC data were available to a depth of 59 m, where DOC showed a concentration of 48.45 muM.
bThe concentrations of ex-DOC and ex-TOC were calculated dividing the integral by the depth-layer at which it was calculated.
cAt 88 m (the deepest sample collected) TOC showed a concentration of 60 muM; as a consequence, it was not possible to estimate the ex-TOC at this station.