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DNR Contacts for Lake Mendota

Friends Of Lake Mendota (Flam) [exit DNR]

Middleton Beach Road Neighborhood Association [exit DNR]

Yahara Lakes Association Ltd [exit DNR]

Find A Lake > Dane County > Lake Mendota

Lake Mendota

Invasive Species

SpeciesStatusYear FoundDetails
Curly-Leaf PondweedVerified and Vouchered1946Details
Eurasian Water-MilfoilVerified and Vouchered1962Details
Spiny WaterfleaVerified2009Details
Water LettuceVerified and Vouchered2015Details
Zebra MusselVerified2017Details
Zebra MusselVerified and Vouchered2015Details

* About Invasive Species: 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.].