Contact information
For information on Lakes in Wisconsin, contact:
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: 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 36
WaterbodyStatusWaterbody ID Code (WBIC)Year First FoundDetails
Adams County (4)
Arkdale LakeVerified1374300  Details
Big Roche a CriVerified13748002010 Details
Big Spring Creek - Hwy GVerified 2012 Details
Klein Creek - 2000ft US of CTH FVerified 2018 Details
Ashland County (1)
Butternut LakeVerified22833002006 Details
Barron County (9)
Apple RiverVerified2614000  Details
Beaver Dam LakeVerified2081200  Details
Brill RiverVerified2106500  Details
Hemlock LakeVerified and Vouchered21098002009 Details
Red Cedar LakeVerified2109600  Details
Red Cedar RiverVerified2063500  Details
Sand LakeVerified26611002009 Details
Sucker CreekVerified21122002014 Details
Willow RiverVerified2606900  Details
Bayfield County (9)
Buskey BayVerified29038002010 Details
Lake MillicentVerified2903700  Details
Long LakeVerified27671002010 Details
Lower Eau Claire LakeVerified2741600  Details
Middle Eau Claire LakeVerified2742100  Details
Pike LakeVerified2904000  Details
Ruth LakeVerified2765900  Details
Twin Bear LakeVerified29039001982 Details
Upper Eau Claire LakeVerified2742700  Details
Brown County (34)
Apple Creek - Rosin RdVerified1241002015 Details
Ashwaubenon Creek - Grant StreetVerified 2015 Details
Page 1 of 36

* 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].