Taking samples in Mariager Fjord, Denmark (IMAGE) University of Southern Denmark Caption Taking samples of oxygen deprived water in Mariager Fjord, Denmark. Credit Beate Kraft, University of Southern Denmark Usage Restrictions none License Original 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.