(Courtesy Detroit Free Press) – Michigan’s rivers and streams face new threats in the form of two invasive species: a snail never seen here before and an algae that used to be found in small, sporadic concentrations.
In west Michigan, scientists have found a tiny mud snail that can crowd out native species and
lead to reduced insect and fish populations. Farther north in the Upper Peninsula, the “didymo” algae’s presence is growing and can form nasty-looking masses of muck that blanket the beds of waterways, foul fishing activities and hurt ecosystems.
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