News release, June 7



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*DNR News Release
*




*FOR IMMEDIATE RELEASE*

June 7, 2024




*For more information:* <[email protected]>

Contact the DNR Information Center
by?email? <[email protected]>or call 888-646-6367.





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Starry Stonewort confirmed in Pokegama Lake in Itasca County
Starry stonewort found in Pokegama Lake

Photo credit: Minnesota DNR

The Minnesota Department of Natural Resources has confirmed the presence of the invasive algae starry stonewort in Pokegama Lake, near Grand Rapids in Itasca County.?

The DNR received a report of suspected starry stonewort in Pokegama Lake from Itasca County staff. Specialists from Itasca County and the DNR found starry stonewort interspersed with native plants on and around a boat ramp on the southwest end of the lake. Dr. Ken Karol with the New York Botanical Garden provided positive confirmation through photographs.

The DNR has updated signage at public accesses and is working with Itasca County to provide decontamination and expanded watercraft inspections. Follow-up surveys are being conducted to determine starry stonewort distribution in that part of the lake.

Starry stonewort is usually identified by the star-shaped white bulbils for which it is named. These bulbils typically don?t become visible until late summer but were observed on the starry stonewort in Pokegama Lake and in other locations this spring. The early visibility of bulbils might be due to unusually warm winter temperatures and below-average snowfall this past winter.

Starry stonewort has now been confirmed in 30 water bodies in Minnesota. It was first confirmed in Minnesota in 2015.

Starry stonewort has never been eradicated from any U.S. lake or river, but treatment or careful removal can help reduce the risk of spread and relieve associated nuisance impacts on water-related recreational activities. Early detection is key to effective management.

Starry stonewort is an algae that looks like some native aquatic plants. Information on how to identify starry stonewort can be found on the?DNR website [ [link removed] ] (mndnr.gov/invasives/aquaticplants/starrystonewort).

If people think they?ve found starry stonewort or any other invasive species new to a lake or river, they should report it to the Minnesota DNR by contacting their?area invasive species specialist [ [link removed] ] (mndnr.gov/invasives/ais/contacts.html).

Starry stonewort can form dense mats, which can interfere with recreational uses of a lake and compete with native plants. It is most likely spread when fragments have not been properly cleaned from trailered boats, personal watercraft, docks, boat lifts, anchors or other water-related equipment.?

Whether or not a lake has any invasive species, Minnesota law requires people to:?


* *Clean* watercraft, trailers and gear to remove aquatic plants and prohibited invasive species.?
* *Drain* all water and leave drain plugs out during transport.?
* *Dispose* of unwanted bait in the trash.?
* *Never release* bait, plants or aquarium pets into Minnesota waters.?
* *Dry docks, lifts and rafts for 21 days *before moving them from one water body to another.?

These additional steps reduce the risk of spreading aquatic invasive species:?


* *Decontaminate *watercraft, trailers and gear ? find free stations on the courtesy decontamination webpage of the DNR website [ [link removed] ] (mndnr.gov/decon).?
* *Spray* watercraft, trailers and gear with high-pressure water or *rinse* with very hot water (120 degrees for at least two minutes or 140 degrees for at least 10 seconds).?
* *Dry* watercraft, trailers and gear for at least five days before using in another water body.?

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