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

Rusty Crayfish

Select Another Location:

Total Locations: 822
Total Lakes and Rivers: 870 *

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
Page 1 of 30
WaterbodyStatusWaterbody ID Code (WBIC)CountyDetails
2023 (6)
Casco CreekVerified   Details
Cominski Creek Verified   Details
Francis CreekVerified5586187Manitowoc Details
Lake Michigan Shoreline - RacineVerified20  Details
Trout Creek-RCVerified5530685Chippewa, Dunn Details
Upper Buckatabon Lake Verified and Vouchered1621800Vilas Details
2022 (4)
Little Maiden LakeVerified487700Oconto Details
Mud Creek Verified Ozaukee Details
Popple River RustyVerified   Details
Spring Brook - Carver Roehl County Park
2021 (7)
Allen Creek (813300) N of Star School RoadVerified and Vouchered Jefferson Details
Bass Lake -- Picnic Ground Boat RampVerified417900Oconto Details
Halls CreekVerified1710600Jackson Details
Killsnake RiverVerified78200Calumet Details
Loon CreekVerified5536894Menominee, Shawano Details
Middle River @ Sleepy Valley Loop Verified and Vouchered2858800Douglas Details
Rusty CrayfishVerified16000Milwaukee Details
2020 (10)
Cedar CreekVerified21300Ozaukee, Washington Details
Cedar Creek - Cedar Creek And Lakefield RoadVerified21300Ozaukee Details
Fish CreekVerified99800Door Details
Lafaye LakeVerified502000Marinette Details
Lake Leota Verified884700Rock Details
Pelican River and Boyce RdVerified1567800Oneida Details
RC Nebagamon Creek at Old Rr Grd Sec 29Verified Douglas Details
RC Trade River at Carl Berg RdVerified Burnett Details
RC-N. Fork Clam RiverVerified Burnett 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].