Great Lakes and Mississippi River Interbasin Study (GLMRIS)

New Focus Area 2 Summary Reports Released!

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The United States Army Corps of Engineers (USACE), in consultation with other federal agencies, Native American tribes, state agencies, local governments and non-governmental organizations, is conducting the Great Lakes and Mississippi River Interbasin Study (GLMRIS) pursuant to Section 3061(d) of Water Resources Development Act of 2007. GLMRIS will explore options and technologies, collectively known as aquatic nuisance species (ANS) controls, that could be applied to prevent ANS transfer between the Great Lakes and Mississippi River basins through aquatic pathways. See the map below to view the location of these basins and the GLMRIS study area. Learn more about GLMRIS. Download the GLMRIS Brochure (PDF, 1.1 MB).

Aquatic Nuisance Species

Aquatic nuisance species (ANS) are nonindigenous species that threaten the diversity or abundance of native species or the ecological stability of infested waters, or commercial, agricultural, aquacultural or recreational activities dependent on such waters. See Section 1003(2) of the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990, 16 U.S.C. § 4702(1) (2010).