MI DNR says fish kills may be common during spring thaw
The Department of Natural Resources reminds everyone that after the ice and snow cover melts on Michigan’s lakes this early spring, it may be common to discover dead fish or other aquatic creatures. Winter conditions often can cause fish and other creatures such as turtles, frogs, toads and crayfish to die.
“Winterkill is the most common type of fish kill,” said DNR Fisheries Division Hatchery Manager and fish health expert Martha Wolgamood. “As the season changes it can be common in shallow lakes, ponds, streams and canals. These kills are localized and typically do not affect the overall health of the fish populations or fishing quality.”
Shallow lakes with excess aquatic vegetation and soft bottoms are prone to this problem. Canals in urban areas also are quite susceptible due to the large inputs of nutrient run-off and pollution from roads and lawns and septic systems that flow into these areas, particularly from large storm events. Read more