Aquatic Invasive Species

Species of Concern:

Take Action

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

Farewell to a Fantastic Intern!

Farewell to a Fantastic Intern!Nov 16, 2018 | As the season shifts, we say farewell to Rachel Delwiche, our 2018 La Crosse Area Aquatic Invasive Species (AIS) Summer Intern. Rachel teamed up with Scott Caven (our Aquatic Invasive Species Manager) this summer to tackle...

WATERWAYS, Fall 2018

WATERWAYS, Fall 2018Oct 31, 2018 | This is the introductory article from our fall 2018 WaterWays newsletter. Download a PDF of the full Newsletter. One Thing We Know By Raj Shukla Wisconsin politicians have grown comfortable eroding long-held protections of our...

Water Hyacinth Response in La Crosse, WI

Water Hyacinth Response in La Crosse, WIOct 30, 2018 This fall, water hyacinth—a prohibited invasive species under NR 40, Wisconsin’s Invasive Species Rule—was discovered in Pool 8 of the Upper Mississippi River. Water hyacinth, native to South America, is a...