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

Brittle Waternymph

Select Another Location:

Total Locations: 9
Total Lakes and Rivers: 12 *

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
WaterbodyStatusWaterbody ID Code (WBIC)CountyYear First FoundDetails
Buffalo LakeVerified168000Marquette2014 Details
Crooked Lake Verified and Vouchered102600Adams2019 Details
Green Bay [Duck Creek]Verified and Vouchered20 2017 Details
Lake AndreaVerified and Vouchered733850Kenosha2014 Details
Lake Butte des MortsVerified and Vouchered139900Winnebago2022 Details
Lake PuckawayVerified158700Green Lake, Marquette2013 Details
Mason LakeVerified5028689Adams, Marquette2009 Details
Mississippi Pool 8Verified and Vouchered721000Vernon2021 Details
Storrs LakeVerified and Vouchered780300Rock2007 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].