Dead Fish (IMAGE) University of California - Berkeley Caption Shown are large numbers of dead sunfish and largemouth bass in April 2014 following a severe winter on Wintergreen Lake in Michigan. Fish are a taxon where mass mortality events have been increasing in frequency and magnitude through time. Credit Photo by Gary Mittelbach Usage Restrictions All Rights Reserved. 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.