Research campaign on Spiekeroog (IMAGE) University of Oldenburg Caption During previous campaigns on Spiekeroog, Oldenburg researchers studied groundwater discharge and porewater composition. Credit Janis Ahrens, University of Oldenburg Usage Restrictions Image may only be used in connection with the press release License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.