Great Lakes Science Center

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Welcome!  The Great Lakes Science Center (GLSC) is part of the Midwest region of the USGS. Our scientists work in the Great Lakes region and other parts of the country to meet the nation’s need for scientific information used by resource managers to restore, enhance, manage, and protect the living resources and habitats in the Great Lakes basin. 

Mapping Application for the Lower Maumee River (MALMR)

Mapping Application for the Lower Maumee River (MALMR)

The Mapping Application for the Lower Maumee River (MALMR) is intended to support science-based decision making regarding habitat restoration at various scales in the lower Maumee River and surrounding region. 

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News

Date published: April 8, 2021

Johnson, Miehls Give Crash Course in Great Lakes Sea Lamprey to Veterinary Students

Clerkship on Aquatic Animal Medicine

Date published: April 8, 2021

Tingley presents at Public Fisheries Seminar for Lake Michigan

Stakeholders Discuss Ecological Changes Occurring Throughout Lake Michigan's Food Web.

Date published: April 1, 2021

Roseman Featured in Nature Conservancy Video on Lake Whitefish Research in Lake Erie

Nature Conservancy Highlights Collaborative Work

Publications

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Year Published: 2021

The species–area relationship for a highly fragmented temperate river system

Despite the importance of species–area relationships (SARs) to conservation, SARs in human‐fragmented rivers have received little attention. Our aim was to test for the presence and strength of SARs for littoral fish assemblages of an extensively dammed river in south‐central Ontario, Canada, and to examine long‐running hypotheses for the drivers...

Carl, Leon M.; Esselman, Peter; Sparks-Jackson, Beth L; Wilson, Christopher C.

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Year Published: 2021

Reproduction

Lake charr Salvelinus namaycush are typically fall spawners although one ecotype has populations that spawn during spring and fall (siscowets in Lake Superior). Lake charr are iteroparous (reproduce more than once in a lifetime) with group-synchronous ovarian development and typically spawn once per year. However, lake charr may not...

W. Goetz, Frederick; Marsden, J. Ellen; Richter, Catherine A.; Tillitt, Donald E.; Sitar, Shawn P.; Riley, Stephen; Krueger, Charles C.

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Year Published: 2021

Stationary hydroacoustics demonstrates vessel avoidance biases during mobile hydroacoustic surveys of alewife in Lake Ontario

Mobile hydroacoustic surveys are routinely used to estimate pelagic fish abundance. In the Great Lakes, alewife are commonly surveyed with mobile hydroacoustics, however, their behavior often has them associated with epilimnetic habitats which increases the potential for vessel avoidance to bias hydroacoustic observations. Abundance...

Elliot, Conner; Holden, Jeremy; Connerton, Michael; Weidel, Brian C.; Tufts, Bruce