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

Faucet Snail

Select Another Location:

Total Locations: 48
Total Lakes and Rivers: 53 *

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: https://dnr.wisconsin.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)Year First FoundDetails
Buffalo County (2)
Mississippi River - Upper Spring Lake LandingVerified 2016 Details
Mississippi River- Fountain City Verified 2016 Details
Calumet County (1)
Lake WinnebagoVerified1311002014 Details
Crawford County (3)
Mississippi River - Marais de Saint FerioleVerified7237002021 Details
Mississippi River - Pool 7Verified7210002005 Details
Mississippi River - Winneshiek Slough and Lake WinneshiekVerified7247002021 Details
Douglas County (1)
Lake Superior Saint Louis RiverVerified2843800  Details
Fond du Lac County (10)
De neveu Creek at Winnebago DrVerified1388002014 Details
Fond du Lac River - Supple Marsh OutletVerified1336002014 Details
Lake WinnebagoVerified1311002014 Details
Lake Winnebago - Lakeside Park Harbor & MarinaVerified55624462013 Details
Lake Winnebago - Lakeside West Park - Supple MarshVerified1337002015 Details
Taycheedah (Luco) CreekVerified50274862019 Details
Taycheedah Creek at Winnebago DrVerified55623152014 Details
Unnamed Channel - Lakeside Park HarborviewVerified55624452014 Details
Unnamed Trib to Fond du Lac R at N Seymour StVerified1339002014 Details
Unnamed Trib to Lk Winnebago at Lake Shore Dr BridgeVerified30001882014 Details
Grant County (1)
McCartney Branch at the end of CTH NVerified 2024 Details
Kenosha County (1)
Paddock LakeVerified7379002012 Details
Kewaunee County (1)
Kewaunee RiverVerified907002024 Details
La Crosse County (8)
Lake OnalaskaVerified7281002015 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].