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Fines for aquatic invasive species violations increase under new law

by MICAH DREW Daily Montanan
| May 27, 2025 7:00 AM

When Tom Millett, a Republican state lawmaker from Marion, was working at a nuclear powerplant on Lake Michigan nearly 30 years ago, he routinely found himself face to face with zebra mussels. 

The small freshwater mollusks are not native to North America, but were introduced into many waterways east of the Mississippi River in the 1980s, including the Great Lakes and have spread prolifically, earning a moniker as one of the most dangerous invasive species on the continent. 

For Millett, zebra mussels would routinely coat parts of the power plant that connected to the freshwater lake.

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