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Dead Fish Expected in Michigan Waters This Spring
1 Apr
Summary
- Winterkill, a common natural event, causes fish and aquatic animal deaths.
- Shallow lakes and urban canals are most susceptible to winterkill.
- Michigan's harsh winter may lead to a more visible fish kill this spring.
As ice melts across Michigan's lakes and streams, residents may observe dead fish and other aquatic life. This occurrence, termed winterkill, is a natural and common event, particularly in shallow bodies of water and urban canals.
The Michigan Department of Natural Resources assures the public that winterkill generally does not harm overall fish populations or fishing quality. However, this year's event is predicted to be more visible. This is attributed to Michigan experiencing record cold temperatures and heavy snowfall, followed by the anticipation of rapid warming.
Fish can become stressed during winter due to low energy and food availability, making them vulnerable to low oxygen levels and temperature fluctuations. Rapid warming can exacerbate this stress, leading to mortality. The DNR encourages reporting of fish kills, especially if non-natural causes are suspected.
