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

Zebra Mussel

Select Another Location:

Total Locations: 320
Total Lakes and Rivers: 269 *

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: http://dnr.wi.gov/topic/Invasives/report.html. 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
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WaterbodyStatusWaterbody ID Code (WBIC)CountyDetails
2020 (1)
Gilas LakeVerified523300Marinette Details
2019 (26)
Boot LakeVerified and Vouchered   Details
De Neveu CreekVerified and Vouchered   Details
East Twin RiverVerified87000Manitowoc Details
East Twin RiverVerified and Vouchered   Details
Kelly LakeVerified and Vouchered   Details
Kinnickinnic RiverVerified and Vouchered   Details
Lake Helen Verified287200Portage Details
Lake PoyganVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinnebagoVerified and Vouchered   Details
Lake WinneconneVerified and Vouchered   Details
Lake WinneconneVerified and Vouchered   Details
Lake Winneconne- Wolf RiverVerified and Vouchered   Details
Lake Winneconne/Wolf RiverVerified and Vouchered   Details
Leigh LakeVerified and Vouchered   Details
Little Hills LakeVerified and Vouchered   Details
Marl LakeVerified264100Waupaca Details
Mukwonago RiverVerified and Vouchered   Details
Stratton LakeVerified and Vouchered   Details
Taycheedah (Luco) CreekVerified and Vouchered   Details
West Twin RiverVerified87000Manitowoc Details
West Twin RiverVerified and Vouchered   Details
2018 (9)
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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].