Contact information
For information on Lakes in Wisconsin, contact:
DNR Lake
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Aquatic Invasive Species - Sawyer County

Location:

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.].

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Waterbody NameWaterbody ID Code (WBIC)Invasive Species
Ashegon Lake2448800Chinese Mystery Snail
Barber Lake2382300Eurasian Water-Milfoil
Barker Lake2400000Chinese Mystery Snail
Birch Lake2113000Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Rusty Crayfish
Blueberry Lake1835700Banded Mystery Snail
Brunet River2378400Chinese Mystery Snail
Callahan Lake2434700Eurasian Water-Milfoil
Chippewa River2050000Purple Loosestrife
Clear Lake1841300Banded Mystery Snail, Eurasian Water-Milfoil
Clear Lake2435800Purple Loosestrife
Connors Lake2275100Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Rusty Crayfish
Couderay River2384700Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil
East Fork Chippewa River2399800Chinese Mystery Snail
Grindstone Lake2391200Banded Mystery Snail, Curly-Leaf Pondweed, Rusty Crayfish
Hayward Lake2725500Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil
Island Creek2381700Banded Mystery Snail, Chinese Mystery Snail
Island Lake2381800Banded Mystery Snail, Chinese Mystery Snail
Knuteson Creek2113700Curly-Leaf Pondweed, Rusty Crayfish
Knuteson Lake2114300Curly-Leaf Pondweed
Lac Courte Oreilles2390800Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Rusty Crayfish
Lake Chetac2113300Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Japanese Mystery Snail, Rusty Crayfish
Lake Chippewa2399700Chinese Mystery Snail, Eurasian Water-Milfoil, Purple Loosestrife
Lake Placid2436500Eurasian Water-Milfoil
Lake of the Pines2275300Banded Mystery Snail, Chinese Mystery Snail
Little Lac Courte Oreilles2390500Curly-Leaf Pondweed, Eurasian Water-Milfoil
Little Round Lake2395500Eurasian Water-Milfoil
Lost Land Lake2418600Banded Mystery Snail, Chinese Mystery Snail, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil
Mud Lake2382200Eurasian Water-Milfoil
Mud Lake2434800Eurasian Water-Milfoil
Namekagon River2689500Hybrid Eurasian / Northern Water-Milfoil, Purple Loosestrife
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Species currently tracked on these lists are: Asiatic Clam (Corbicula), Banded Mystery Snail, Bloody Shrimp, Bohemian knotweed (Polygonum bohemicum), Brazilian Waterweed, Brittle Waternymph, Butterfly dock, Chinese Mystery Snail, Curly-Leaf Pondweed, Daphnia lumholtzii , Eurasian Water-Milfoil, European Frogbit, Faucet Snail, Fishhook Waterflea, Flowering Rush, Giant hogweed (Heracleum mantegazzianum), Giant knotweed (Polygonum sachalinense), Golden Creeper, Graceful Cattail, Hairy Willow Herb, Hybrid Eurasian / Northern Water-Milfoil, Hydrilla, Japanese Hops, Japanese Mystery Snail, Japanese knotweed (Fallopia japonica), Japanese stiltgrass (Microstegium vimineum), Java Waterdrop / Vietnamese Water Celery, Lesser celandine (Ranunculus ficaria), New Zealand Mudsnail, Ornamental water lilies (non-native Nymphaea sp.), Parrot Feather, Pennywort, Phragmites (non-native), Poison Hemlock, Policeman’s helmet (Impatiens glandulifera), Purple Loosestrife, Quagga Mussel, Queen of the meadow (Filipendula ulmaria), Rainbow Smelt, Red Swamp Crayfish, Reed Manna Grass, Round Goby, Rusty Crayfish, Sacred Lotus, Seaside Goldenrod, Southern Cattail, Spiny Naiad, Spiny Waterflea, Starry Stonewort, Water Hyacinth, Water Lettuce, Western Mosquitofish, Yellow Floating Heart, Yellow Iris, and Zebra Mussel.

* Observed – This is a record that has been observed in the field, but a specimen has not been verified by a taxonomic expert or an established population has not been found within the waterbody. Only dead AIS or few individuals of one age class have been observed, not an established breeding population. This will include dead individuals observed outside their growing season that will need to be revisited during target times to verify. This also includes historic monitoring data that has not been verified by a taxonomic expert.

** Purple Loosestrife - DNR has only a partial list of locations. For more extensive data, visit the Great Lakes Indian Fish and Wildlife Commission (GLIFWC) website [exit DNR].

** Fish species - This web page only has a partial list of locations. For more extensive data, visit the Wisconsin Department of Natural Resources Map of Distribution of WI Fish Species [exit DNR].