Boulder LakePhoto by Wisconsin DNR
* 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.wi.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.].
Wisconsin Department of Natural Resources | 101 S. Webster Street . PO Box 7921 | Madison, Wisconsin 53707-7921Call 1-888-936-7463 (TTY Access via relay - 711) from 7 a.m. - 10 p.m.
Site requirements | Accessibility | Legal | Privacy | Employee resources