Mussel trawlers (IMAGE) Aarhus University Caption Six mussel trawlers at Venø in the Limfjord pull large amounts of seabed up into the water column. The cloud of sediment (seabed) leads to an increased release of carbon dioxide and causes poorer oxygen conditions over the seabed. Credit Ortofoto, GeoDanmark 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.