Map of the Black Sea's Drainage Basin (image) Woods Hole Oceanographic Institution Caption The Danube's watershed is delimited by a continuous white line, its course is highlighted in blue, and the Danube delta is shown in green. The Danube drains most of the Central and Eastern Europe to dominate the freshwater and sediment budget of the Black Sea. A sediment core shown by a white circle was used to reconstruct the salinity and ecosystem composition in the Black Sea over the last 7000 years. Credit Liviu Giosan, Woods Hole Oceanographic Institution; Stefan Constantinescu, University of Bucharest Usage Restrictions With proper credit 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.