Annual Riverine Fish Catches (IMAGE) University of Wisconsin-Madison Caption This is a global map of annual riverine fish catches. The map is modeled based on river discharge (size) and national data on the number of fish reported caught. Credit Courtesy of the study authors Usage Restrictions None 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.