Aquatic Invasive Species

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It’s a team effort to prevent the spread of aquatic invasive species;
learn how you can help!

Report an Invasive Species

Early reports allow for a more rapid response.

Free Project RED Training

Learn to monitor for 21 species of concern.

Coldwater Anglers

Do you follow clean angling practices?

Statewide Snapshot Day

An annual event everyone can take part in.

Recent Blog Posts

Look Out Aquatic Invasive Species!

Look Out Aquatic Invasive Species!May 17, 2017 With field season ramping up by the day, River Alliance of Wisconsin welcomes Ava Pfeffer as our 2017 La Crosse Area Aquatic Invasive Species (AIS) Intern. Ava graduated from the University of Wisconsin-La Crosse with a...

New Zealand Mudsnail Found for 2nd Time in Dane County

New Zealand Mudsnail Found for 2nd Time in Dane CountyDec 13, 2016 The invasive New Zealand mudsnail (Potamopyrgus antipodarum) has been recently discovered for the first time in Badger Mill Creek at the Highway 69 bridge crossing, near Verona, WI. The snail was...

AIS Success Story in La Crosse

AIS Success Story in La CrosseDec 9, 2016 In 2015, water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes) – two of the most problematic aquatic invasive species (AIS) in the world – were discovered in Lake Onalaska (Pool 7 of the Mississippi...