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DNR Contacts for Madeline Lake

Find A Lake > Vilas County > Madeline Lake

Madeline Lake

Invasive Species

SpeciesStatusYear FoundDetails
Banded Mystery SnailVerified2005Details
Chinese Mystery SnailVerified2005Details
Eurasian Water-MilfoilVerified and Vouchered2023Details
Purple LoosestrifeVerified2010Details
Rusty CrayfishVerified1983Details

* 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.].