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Invasive Species Mapping in Michigan Overview | Current Occurrences | Related Resources Mapping data: Introduction | Time Series Map | Local AIS Information | Data Downloads 
Overview This is a spatial database of key aquatic invasive species (AIS) invasions within the state of Michigan, which aims to improve coordination among resource managers, raise stakeholder awareness, and enhance AIS prevention and control measures. A spatial data layer for some of the major AIS of concern within Michigan waters is presented below. These species include round goby (Neogobius melanostomus), ruffe (Gymnocephalus cernuus), purple loosestrife, (Lythrum salicaria), sea lamprey (Petromyzon marinus), zebra mussel (Dreissena polymorpha), quagga mussel (Dreissena bugensis), spiny waterflea (Bythotrephes cederstroemi) and Eurasian watermilfoil (Myriophyllum spicatum). Other information is provided for additional species. Various agencies and organizations provided these data. Time series maps are also provided which show the spread of each species and/or accumulation of data over time from earliest dates available to the present. Local AIS information specific to either county or watershed for six species (sea lamprey, ruffe, round goby, purple loosestrife, zebra mussel, and quagga mussel) is also available which shows year of data collection and waterbody/location of the occurrence. Lastly, data downloads can be executed to provide users with GIS data layers, database files used to create the maps on these pages, and quick facts about each species of concern. Absence of data does not imply absence of invasive species.
Current Occurrences
Related Resources GLIN: Agencies and Organizations, Environment GLIN: Biodiversity in the Great Lakes Region GLIN: Habitats of the Great Lakes Region GLIN: Invasive Species in the Great Lakes Region GLIN: Plants of the Great Lakes Region GLIN: Wildlife of the Great Lakes Region
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