Rock Bass (IMAGE) University of California - Davis Caption Rock bass, like this one fished from Wisconsin, are among the fish facing a more uncertain future as high summer temperatures foretell increased fish die-off events for warm lakes. Credit Andrew Rypel/UC Davis Usage Restrictions Provide credit. 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.