Blue Catfish (IMAGE) University of Wisconsin-Madison Caption The fate of the blue catfish and more than 60 other species of large-river specialist fishes depends on conservation of suitable habitat and connectivity between the Mississippi River and its tributaries. Credit Brenda Pracheil 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.