Contact information
For information on Lakes in Wisconsin, contact:
DNR Lake
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Zebra Mussel

Select Another Location:

Total Locations: 334
Total Lakes and Rivers: 317 *

Disclaimer: Aquatic invasive species (AIS) records are assigned statuses of "verified", "observed", or "no longer observed" based on AIS Status Guidance. In general, "verified" populations are established and have been verified by a taxonomic expert. Populations with the "observed" status have not been verified by a taxonomic expert or do not have established populations. Populations with the "no longer observed" status include populations where a reproducing population did not establish. Our inventories are not necessarily exhaustive so it is important to report occurrences. To report new discoveries visit: See the Aquatic Invasive Species Guidance for information on how statuses are assigned. Personally identifiable information on data collection forms may be provided to requesters to the extent required by Wisconsin's Open Records Law [ss. 19.31-19.39, Wis. Stats.].

By County | By Waterbody | By Species | By Year | Open In Excel
Page 1 of 12
WaterbodyStatusWaterbody ID Code (WBIC)CountyYear First FoundDetails
Applebecker MillpondVerified827700Waukesha1999 Details
Archibald LakeVerified417400Oconto2020 Details
Arkdale LakeVerified and Vouchered1374300Adams2017 Details
Army LakeVerified  2021 Details
Army LakeVerified  2021 Details
Arrowhead LakeVerified1377700Adams2004 Details
Ashippun LakeVerified854300Waukesha2008 Details
Auburn LakeVerified and Vouchered42400Fond du Lac2010 Details
Avoca LakeVerified1220200Iowa2013 Details
Bagley FlowageVerified516800Marinette2009 Details
Balsam Lake ZMVerified2620600Polk2022 Details
Bark River - Applebacker Millp to U Nemahbin LkVerified813500Waukesha1999 Details
Bark River - Crooked Lk to STH 67Verified813500Waukesha1999 Details
Bark River - L Nemahbin Lk to Crooked LkVerified813500Waukesha1999 Details
Bark River - Nagawicka Lk to Applebecker Millp.Verified813500Waukesha1999 Details
Bark River - U. Nemahbin to L. Nemahbin Lk.Verified813500Waukesha1999 Details
Bark River at Hwy 67Verified813500Waukesha2014 Details
Bass LakeVerified2450500St. Croix2010 Details
Bass Lake - Spread Eagle ChainVerified702700Florence2013 Details
Bass Lake (Waupaca Chain)Verified5551281Waupaca2013 Details
Battle SloughVerified725700Vernon1991 Details
Bear LakeVerified279700Waupaca2021 Details
Beasley Lake (Waupaca Chain)Verified262300Waupaca2013 Details
Beaver Dam LakeVerified835100Dodge2011 Details
Beaver LakeVerified774400Waukesha2005 Details
Benedict LakeVerified743900Kenosha, Walworth2004 Details
Bertom LakeVerified721500Grant2012 Details
Big Cedar LakeVerified25300Washington2000 Details
Big McKenzieVerified and Vouchered2706800Burnett, Washburn2016 Details
Big Roche A Cri LakeVerified and Vouchered1374800Adams2015 Details
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* Total Lakes and Rivers = total unique Waterbody ID Codes (WBICs). If a waterbody, such as a small pond not in the DNR 24 K Hydrolayer, doesn't have a WBIC, it isn't currently counted in the total.

** Purple Loosestrife - DNR has only a partial list of locations. For more extensive data, visit the Great Lakes Indian and Fish Wildlife Commission (GLIFWC) website [exit DNR].

** Fish species - This web page only has a partial list of locations. For more extensive data, visit the Wisconsin Department of Natural Resources Map of Distribution of WI Fish Species [exit DNR].