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

Brittle Waternymph

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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)Year First FoundDetails
Adams County (2)
Crooked Lake Verified and Vouchered1026002019 Details
Mason LakeVerified50286892009 Details
Green Lake County (1)
Lake PuckawayVerified1587002013 Details
Kenosha County (1)
Lake AndreaVerified and Vouchered7338502014 Details
Marquette County (3)
Buffalo LakeVerified1680002014 Details
Lake PuckawayVerified1587002013 Details
Mason LakeVerified50286892009 Details
Rock County (1)
Storrs LakeVerified and Vouchered7803002007 Details
Vernon County (1)
Mississippi Pool 8Verified and Vouchered7210002021 Details
Winnebago County (1)
Lake Butte des MortsVerified and Vouchered1399002022 Details
County Not Specified (1)
Green Bay [Duck Creek]Verified and Vouchered202017 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].