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Aquatic Invasive Species Snapshot Day 2022

August 20

Join the statewide search for aquatic invasive species!

Snapshot Day is a statewide, one-day event connecting volunteers, water lovers, and local groups in a search for aquatic invasive species (AIS). You can help protect Wisconsin’s rivers, lakes, and wetlands from these invasive plants and animals that negatively impact habitat, wildlife, recreation and health. This event is coordinated in partnership with UW-Madison Division of Extension, River Alliance of Wisconsin, Wisconsin Department of Natural Resources, local partners, and YOU!

Volunteers will look for invasive species at critical monitoring sites, and potential invasive species will be verified and cataloged with the Wisconsin Department of Natural Resources to guide species control and conservation management plans.  No experience is necessary and training is provided virtually prior to the event.

This is event is recommended for ages 8 and up; minors must be accompanied by an adult.

An Overview of Snapshot Day

This handbook provides an overview of what to expect when participating as a Snapshot Day Volunteer!

Virtual Volunteer Training

A virtual volunteer training took place on August 12th for volunteers to learn the Snapshot Day protocols. The training was recorded and is available for those who were unable to join live. You can view the training here: 

Schedule – Day Of

8:30 AM    –   9:00 AM     Sign in at your Snapshot Day location and receive monitoring site assignments.

9:00 AM    –   9:30 AM     Brief training tailored to your monitoring sites.

9:30 AM    – 11:30 AM     Search for aquatic invasive species at monitoring sites.

11:30 AM – 12:30 PM     Return to you Snapshot Day location to report your finds!

*Times may vary by location


You will choose the location where you would like to participate when you register. You will be contacted by your Site Leader with specific details prior to the event.

  • Amery – Polk County
  • Ashland – Ashland County
  • Brillion – Calumet County
  • Brodhead – Rock and Green Counties
  • Chippewa Falls – Chippewa County
  • Conover – Vilas County
  • Ellsworth – Pierce County
  • Elcho – Langlade County
  • Hartland – Waukesha County
  • Hortonville – Outagamie County
  • Janesville – Rock County
  • Jefferson – Jefferson County
  • Kewaunee – Kewaunee County
  • La Crosse – La Crosse County
  • Lincoln – Forest County (event held August 19th)
  • Madison – Dane County
  • Manitowish Waters – Vilas County
  • Manitowoc – Manitowoc County
  • Merillan – Clark and Jackson Counties
  • Shawano – Shawano County
  • Sheboygan – Sheboygan County
  • Siren – Burnett County
  • Tomahawk – Lincoln County
  • Tomahawk – Oneida County
  • West Bend – Washington County
  • Winneboujou – Douglas County


Register here:



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