Jul 24

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Tiny Snails Pose Big Risks

Get the dirt on tiny, invasive mudsnails . . . learn more:


Photo credit: U.S. Geological Survey

New Zealand mudsnails have now been found twice in Wisconsin – most recently in Badger Mill Creek, near Madison. They’re the size of a corn kernel, but they can outcompete native species. In extreme cases…

“We’ve seen densities of over 500,000 mud snails per square meter,” states Matt Krueger, Restoration Director of the River Alliance of Wisconsin.

He says mudsnails can seal off their shells, and survive being eaten by birds and fish. And they can live out of water for weeks…

“…because they’re able to completely close themselves off and retain some of that moisture inside.”

When stuck to an angler’s boots, mud snails may live ‘til the next fishing trip. So cleaning all gear between trips can help stop the spread of these sneaky snails.


Get Schooled:


Hear More:

Matt Krueger discusses the impact mudsnails may have on tourism.


Watch More:

Brush up on boot cleaning tips with Laura MacFarland of the River Alliance of Wisconsin.

 The fine print:

  • CurrentCast is produced in partnership with Cornell University’s Atkinson Center for a Sustainable Future. Learn more at http://www.currentcast.org.




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