Sediment profile images obtained along a transect with increasing water depths in July 2015 showed that a thin surface layer of earlier anoxic bottom sediments in the East Gotland Basin (EGB) had been oxidized by contact with new deepwater that arrived to EGB three months earlier, i.e. in March 2015. This is the first time re-oxygenation of surficial sediments after inflows of oxygen-rich water is shown in situ in the Baltic Sea. It was also found that the recently oxygenated bottoms had not been colonized by animals. This is described in a paper by Rutger Rosenberg, Marina Magnusson and Anders Stigebrandt published in Ambio 2016. The paper can be found under the tab Downloads.