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

New Zealand Mudsnail

Select Another Location:

Total Locations: 24
Total Lakes and Rivers: 21 *

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
WaterbodyStatusWaterbody ID Code (WBIC)CountyYear First FoundDetails
Badfish Creek: Oregon BranchVerified and Vouchered800700Dane2017 Details
Badger Mill CreekVerified and Vouchered888100Dane2016 Details
Badger Mill Creek at old Hwy. PB (133209) Verified and Vouchered888100Dane2016 Details
Badger Mill Creek at STH 151 (10047601)Verified and Vouchered888100Dane2016 Details
Black Earth Creek - Adj to Wolf RunVerified and Vouchered1248600Dane2016 Details
Black Earth Creek - Cross PlainsVerified and Vouchered1248600Dane2018 Details
Black Earth Creek - South Valley RoadVerified and Vouchered1248600Dane2012 Details
Black Earth Creek at Cth PVerified1248600Dane2017 Details
Black Earth Creek-WWTPVerified and Vouchered1248600Dane2014 Details
Brewery Creek - 100 Yds S of CulvertVerified and Vouchered1250200Dane2018 Details
Brewery Creek - 20 ft. upstream of HWY 14 bridgeVerified and Vouchered1250200Dane2018 Details
Brewery Creek - 250 Yds S of culvertVerified and Vouchered1250200Dane2018 Details
Brewery Creek - Black Earth Creek ConfluenceVerified and Vouchered1250200Dane2018 Details
Elvers CreekVerified5035799Dane2021 Details
Fryes FeederVerified886800Dane2022 Details
Mt Vernon Ck 1 M Ds Cth UVerified and Vouchered886600Dane2016 Details
Mt Vernon Creek - 150 meters upstream of Cty Rd U bridgeVerified and Vouchered886600Dane2018 Details
Mt Vernon Creek at Park to Hwy G BridgeVerified and Vouchered886600Dane2017 Details
Rowan Creek - S of Academy StreetVerified1263700Columbia2020 Details
Rowan Crk -20 M Hwy 51Verified and Vouchered1263700Columbia2016 Details
St Louis RiverVerified2843800Douglas2005 Details
Strutt CreekVerified and Vouchered1244500Iowa2018 Details
Token CreekVerified5573661Dane2021 Details
Turtle CreekVerified790300Walworth2022 Details

* 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].