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)Year First FoundDetails
Columbia County (2)
Rowan Creek - S of Academy StreetVerified12637002020 Details
Rowan Crk -20 M Hwy 51Verified and Vouchered12637002016 Details
Dane County (19)
Badfish Creek: Oregon BranchVerified and Vouchered8007002017 Details
Badger Mill CreekVerified and Vouchered8881002016 Details
Badger Mill Creek at old Hwy. PB (133209) Verified and Vouchered8881002016 Details
Badger Mill Creek at STH 151 (10047601)Verified and Vouchered8881002016 Details
Black Earth Creek - Adj to Wolf RunVerified and Vouchered12486002016 Details
Black Earth Creek - Cross PlainsVerified and Vouchered12486002018 Details
Black Earth Creek - South Valley RoadVerified and Vouchered12486002012 Details
Black Earth Creek at Cth PVerified12486002017 Details
Black Earth Creek-WWTPVerified and Vouchered12486002014 Details
Brewery Creek - 100 Yds S of CulvertVerified and Vouchered12502002018 Details
Brewery Creek - 20 ft. upstream of HWY 14 bridgeVerified and Vouchered12502002018 Details
Brewery Creek - 250 Yds S of culvertVerified and Vouchered12502002018 Details
Brewery Creek - Black Earth Creek ConfluenceVerified and Vouchered12502002018 Details
Elvers CreekVerified50357992021 Details
Fryes FeederVerified8868002022 Details
Mt Vernon Ck 1 M Ds Cth UVerified and Vouchered8866002016 Details
Mt Vernon Creek - 150 meters upstream of Cty Rd U bridgeVerified and Vouchered8866002018 Details
Mt Vernon Creek at Park to Hwy G BridgeVerified and Vouchered8866002017 Details
Token CreekVerified55736612021 Details
Douglas County (1)
St Louis RiverVerified28438002005 Details
Iowa County (1)
Strutt CreekVerified and Vouchered12445002018 Details
Walworth County (1)
Turtle CreekVerified7903002022 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].