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

Zebra Mussel

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Total Locations: 333
Total Lakes and Rivers: 310 *

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 15
WaterbodyStatusWaterbody ID Code (WBIC)Year First FoundDetails
Adams County (10)
Arkdale LakeVerified and Vouchered13743002017 Details
Arrowhead LakeVerified13777002004 Details
Big Roche A Cri LakeVerified and Vouchered13748002015 Details
Camelot LakeVerified13781002009 Details
Castle Rock LakeVerified13457002004 Details
Lake SherwoodVerified13779002010 Details
Petenwell LakeVerified13771002004 Details
Wisconsin River - From Nepco Lake to Petenwell LakeVerified11799002004 Details
Wisconsin River - From Petenwell Lake to Castle Rock LakeVerified11799002004 Details
Wisconsin River Downstream of Mud Lake Outfall on RiverVerified11799002011 Details
Brown County (7)
Duck / Beaver Dam Cr -- Access at Cty J And Riverview Dr Verified and Vouchered4097002015 Details
East River Verified1180002015 Details
Fox River - Lk Winnebago to Green BayVerified1179001999 Details
Fox River -- Wrightstown LaunchVerified1251002015 Details
Green BayVerified201993 Details
Green Bay and Fox River AOCVerified1179002020 Details
Lake MichiganVerified201991 Details
Buffalo County (4)
Lake PepinVerified7318001991 Details
Mississippi RiverVerified7210001991 Details
Mississippi River -- Indian Slough LandingVerified55897732011 Details
Unnamed (Mertes Lake)Verified55566152013 Details
Burnett County (2)
Big McKenzieVerified and Vouchered27068002016 Details
Middle McKenzie LakeVerified and Vouchered27065002017 Details
Calumet County (1)
Lake WinnebagoVerified1311001999 Details
Columbia County (1)
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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].