DNR says fish kills may be common during spring thaw
From: Michigan Dept. of Natural Resources
After ice and snow cover melt on Michigan lakes early this spring, it may be more likely for people to discover dead fish or other aquatic animals. While such sights can be startling, the Department of Natural Resources reminds everyone that this is normal, since winter conditions can cause fish and other creatures such as turtles, frogs, toads and crayfish to die.