Spring thaw in Michigan can be a challenging time for fish

Spring thaw in Michigan can be a challenging time for fish. As the ice melts and water temperatures rise, it can create a lack of oxygen, resulting in what is known as winterkill. The Michigan Department of Natural Resources (DNR) has assured the public that while seeing dead fish can be alarming, it is a common and localized occurrence.

Winterkill happens when snow and ice prevent sunlight from penetrating the water surface, which causes plants to die and oxygen to be depleted. When oxygen levels drop too low, fish can suffocate and die. Although this is a natural occurrence, the DNR encourages the public to report any suspected non-natural causes of fish death.

It is important to understand that fish kills are a natural process that help to manage the state's aquatic resources. Dead fish provide nutrients for other aquatic life, and by reporting any suspected non-natural causes of fish death, the DNR can work to protect and preserve Michigan's fish populations.

If you encounter dead fish during the spring thaw, there is no need to panic. Instead, take the opportunity to appreciate the interconnectedness of our aquatic ecosystems and report any suspected non-natural causes to the Michigan DNR. For more information on winterkill and fish kills in Michigan, visit the DNR website.