Zebra mussels have been monitored in Gull Lake (southwestern Michigan) since 1995 by 
Michigan State University scientists. Massive die-offs of the mussels were observed in Gull Lake in the summers of 2010, 2011 and 2012, coinciding with the warmest water temperatures. However, some other nearby lakes became just as warm but did not have die-offs, and lab studies show that the mussels can tolerate the temperatures experienced in Gull Lake. Given this contradictory evidence, the MSU team is seeking information about similar die-offs that may have been observed in other lakes. Please send your observations to Dr. Stephen Hamilton of Kellogg Biological Station: email hamilton@kbs.msu.edu, phone (269)671-2231. Include the lake name and location (county preferred), what you observed, when it occurred, and how certain you are. We are just as interested in hearing about lakes where no decline has been noticed as those where declines occurred. We appreciate any information you can provide.