Figure 10: Temporal evolution of dissolved O2 concentrations at a depth of 75 m comparing results from Scenarios I–III to the results of the base case. (a), (b), (c), (d), (e), and (f) for Dol3, Sand4, Dol2, Sand3, Sand2, and Sand1, respectively. O2 concentrations in mol l−1. If O2 profiles are not visible for a specific unit, concentrations remain below 1 × 10−9 mol l−1 for duration of simulation.