Contact information
For information on Lakes in Wisconsin, contact:
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)CountyDetails
2022 (1)
Lake Butte des MortsVerified and Vouchered139900Winnebago Details
2021 (1)
Mississippi Pool 8Verified and Vouchered721000Vernon Details
2019 (1)
Crooked Lake Verified and Vouchered102600Adams Details
2017 (1)
Green Bay [Duck Creek]Verified and Vouchered20  Details
2014 (2)
Buffalo LakeVerified168000Marquette Details
Lake AndreaVerified and Vouchered733850Kenosha Details
2013 (1)
Lake PuckawayVerified158700Green Lake, Marquette Details
2009 (1)
Mason LakeVerified5028689Adams, Marquette Details
2007 (1)
Storrs LakeVerified and Vouchered780300Rock 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].