Figure 5
From: Mixing it up in the ocean carbon cycle and the removal of refractory dissolved organic carbon
(a) Depth profile of DOC concentrations at BATS. Seawater samples were collected from 50, 100, 300, 750, and 1500 m and were divided into two treatments: unamended (control) and amended with ~20 µmol L−1 of C-18 DOC isolated from 1200 m (as in Fig. 2). (b) Removal of DOC in the control and amended groups after 180 days of dark incubation at room temperature (22–24 °C). Data are reported as the average value and standard deviation (n = 3).
