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

Spiny Waterflea

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Total Locations: 23
Total Lakes and Rivers: 27 *

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
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WaterbodyStatusWaterbody ID Code (WBIC)CountyDetails
2022 (1)
Lake WinnebagoVerified131100Calumet, Fond du Lac, Winnebago Details
2019 (1)
Plum lakeVerified1592400Vilas Details
2018 (1)
West Branch Montreal RiverVerified2942100Iron Details
2017 (1)
Fox River at Sunset Point ParkVerified117900Outagamie Details
2016 (1)
Fox River (Riverside Park)Verified117900Outagamie Details
2015 (1)
Ike Walton LakeVerified2321800Vilas Details
2014 (2)
Butternut LakeVerified692400Forest Details
Trout LakeVerified2331600Vilas Details
2013 (1)
Star LakeVerified1593100Vilas Details
2009 (4)
Lake KegonsaVerified802600Dane Details
Lake MendotaVerified805400Dane Details
Lake MononaVerified804600Dane Details
Lake WaubesaVerified803700Dane Details
2007 (1)
Stormy LakeVerified1020300Vilas Details
2006 (1)
Whitefish LakeNo Longer Observed2694000Douglas Details
2003 (1)
Gile FlowageVerified2942300Iron Details
1987 (1)
Lake SuperiorVerified2751220  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].