- 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
Pennywort
Total Locations: 7
Total Lakes and Rivers: 8
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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
Waterbody | Status | Waterbody ID Code (WBIC) | Year First Found | Details |
Dodge County (5) |
Horicon Marsh 14 Bay Spillway - Dike Road | Verified | | 2023 |
Details
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Horicon Marsh State Wildlife Area - Bachhuber Impoundment | Verified and Vouchered | | 2020 |
Details
|
Quick Point - Horicon Marsh Scenic Outlook Loop | Verified | 5588387 | 2023 |
Details
|
Rock River -- Chestnut Street Boat Launch | Verified | | 2023 |
Details
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Rock River -- Clausen Bowling Green Park Canoe Launch | Verified and Vouchered | | 2023 |
Details
|
Walworth County (1) |
Delavan Lake | Verified and Vouchered | 793600 | 2010 |
Details
|
County Not Specified (1) |
Big Twin Lake | Verified and Vouchered | | 2024 |
Details
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