Alewife
This invasive species competes for plankton and aquatic organisms amongst native lake herring, whitefish, chubs, and perch, which
AIS can cause issues that impact our lakes, streams, and wetlands and are increasingly the focus of Watershed Council monitoring and management programs. Knowing how to identify AIS, how they got here, and what you can do to help prevent them from spreading is important.
This invasive species competes for plankton and aquatic organisms amongst native lake herring, whitefish, chubs, and perch, which
The bloody red shrimp is a mysid, a relative of the native Great Lakes opossum shrimp, Mysis relicta
Rapid growth leads to dense, monospecific mats on the surface of the water. These mats crowd out native
The origins of its introduction are unknown, but it is suspected that it was possibly imported as an
Invasive water-primrose species are aquatic plants that can thrive and spread in shallow water areas including wetlands and
Eurasian watermilfoil (Myriophyllum Spicatum) is a plant native to Europe and Asia that was first documented in North
Hydrocharis morsus-ranae, better known as European Frogbit, is an aquatic, invasive species currently spreading throughout the Great Lakes
Flowering rush originated in Eurasia but can now be found throughout the Midwest, including in Southern Michigan, and
Giant Hogweed is a Federally listed noxious weed. Its sap, in combination with moisture and sunlight, can cause
Golden Mussel is native to Chinese and south-eastern Asian rivers and creeks. It became established in Hong Kong
Hydrilla is a stocky whorled submergent plant with spiny leaves in whorls of approximately 4-6. It is well
Invasive carp are a tremendous threat to the Great Lakes and could devastate the lakes if they enter
Two non-native invasive plants that have been gaining a foothold in recent years in Northern Michigan are Japanese
Phragmites (Phragmites australis), also known as the common reed, is an aggressive wetland invader that grows along the
Killer shrimp is an amphipod native to the Ponto-Caspian region that has recently invaded and spread throughout western
New Zealand mudsnails compete with other native species for food, disrupting the food chain and threaten the health
As with many non-native and invasive species, snakehead fish have no natural predators in the United States. This
Parrot feather is an aggressive whorled aquatic plant that is similar to watermilfoils, but emergent. Its stems can
AIS on our watch list: European Frogbit, Hydrilla, Invasive Carp, New Zealand Mud Snail, Parrot Feather, Red Swamp Crayfish, Water Hyacinth, Brazilian Elodea, European Water Clover, Water Chestnut, Water Lettuce, Water Soldier, Yellow Floating Heart, Northern Snakehead, Marbled Crayfish
There are both economic and ecological impacts, both of which are quite serious. Economically, there are losses in tourism, sports-fisheries, industry and more. In Michigan, fishing expenditures alone exceed $800,000,000 per year(1), a figure that could drop substantially as aquatic invasive species disrupt ecosystems and impact fisheries. Losses in the U.S. are estimated at $78.5 billion annually and studies have estimated lost property values on infested water bodies of up to $12,000 per property(2). Ecologically, aquatic invasive species’ impacts include food-web disruptions, native species reduction or loss (and dependent species), water quality degradation, and the introduction of pathogens. Furthermore, ecosystem disruptions and imbalances can result in increased danger to human health.
Every dollar invested in Tip of the Mitt Watershed Council helps leverage government and foundation grants for much needed local water quality monitoring and pollution prevention, invasive species management, shoreline restoration, education, and much more.
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