- Contact information
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For information on Lakes in Wisconsin, contact:
- DNR Lake
Division of Water
Bureau of Water Quality
- Aquatic Invasive Species Contacts
Lakes and Rivers With Invasives - 2023 Findings
Total Locations: 188
Total Lakes and Rivers: 212
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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: https://dnr.wisconsin.gov/topic/Invasives/report.html. 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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Waterbody | Species | Status | Waterbody ID Code (WBIC) | County | Details |
2023 (188) |
0.1 Mile E of Quill Lake. Along Tree Farm Road | Phragmites (non-native) | Verified | | |
Details
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650th Street | Japanese knotweed (Fallopia japonica) | Verified | | Dunn |
Details
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Alford Dr Park and Ride S of Carthage | Purple Loosestrife | Verified | | Kenosha |
Details
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Amy Belle Lake | Eurasian Water-Milfoil | Verified | 828650 | Washington |
Details
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Ashippun River inlet to Druid Lake | Purple Loosestrife | Verified | | Washington |
Details
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Barkhousen Interpretive Center | Purple Loosestrife | Verified | | |
Details
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Barkhousen Interpretive Center | Phragmites (non-native) | Verified | | |
Details
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Bass Lake (Rhinelander) | Eurasian Water-Milfoil | Verified and Vouchered | 1580300 | Oneida |
Details
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Bay shore from University to Seagull Bar SNA | European Frogbit | Verified | 20 | |
Details
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Belfast Lane and W Belfast Lane | Purple Loosestrife | Verified | | |
Details
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Big Blake Lake | Banded Mystery Snail | Verified | 2627000 | Polk |
Details
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Big Cedar Lake | Starry Stonewort | Verified and Vouchered | 25300 | Washington |
Details
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Big Muskego | Spiny Naiad | Verified | 762400 | Waukesha |
Details
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Big Portage Lake | Chinese Mystery Snail | Verified and Vouchered | 1629500 | Vilas |
Details
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Blass Lake | Eurasian Water-Milfoil | Verified | | |
Details
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Bluff Creek at state land off Whitewater Creek Rd | Purple Loosestrife | Verified | | Walworth |
Details
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Bradley Lake | Phragmites (non-native) | Verified | | |
Details
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Bradley Lake | Curly-Leaf Pondweed | Verified | | |
Details
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Brown Deer Park Pond | Banded Mystery Snail | Verified | | |
Details
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Brown Deer Park Pond | Curly-Leaf Pondweed | Verified | | |
Details
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Butternut Creek @ CTY N | Chinese Mystery Snail | Verified | 5518714 | Polk |
Details
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Butternut Lake | Chinese Mystery Snail | Verified | 692400 | Forest |
Details
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Cable Lake | Yellow Iris | Verified | 2729700 | Bayfield |
Details
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Canal East of Johnson Rd | European Frogbit | Verified | | |
Details
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Casco Creek | Rusty Crayfish | Verified | | |
Details
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Case Eagle Park - FR | Flowering Rush | Verified | | |
Details
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Cemetery RD JKW | Japanese knotweed (Fallopia japonica) | Verified | | |
Details
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Chain Lake CMS | Chinese Mystery Snail | Verified | 2350500 | Chippewa, Rusk |
Details
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Church Pine Lake | Yellow Iris | Verified | 2616100 | Polk |
Details
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