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: October 14, 2020

Tiny Bones Tell Big Stories: How Fish Ear Bones Inform Great Lakes Fishery Science & Management

Much like how the growth of trees is chronicled in rings on trunks, fish growth is recorded in layers on otoliths. Fish accumulate layers of calcium carbonate on their otoliths throughout their lives, with the rate of accumulation depending on how fast a fish is growing.

Date published: September 20, 2019

Patrick Kocovsky Teaches Junior High Students About Fish Age Estimation

Passing on our knowledge to the next generation of scientists.

Date published: September 20, 2019

Tara Bell invited to Participate in Making USGS Data FAIR Workshop

FAIR – Findable, Accessible, Interoperable, Reusable

Publications

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Year Published: 2020

Outsized nutrient contributions from small tributaries to a Great Lake

Excessive nutrient inputs from tributary streams and rivers contribute to harmful algal blooms and coastal ecosystem degradation worldwide. However, the role that small tributaries play in coastal nutrient dynamics remains unknown because most monitoring and regulatory efforts focus only on the largest tributaries. We combined a 6-d sampling...

Mooney, Robert J; Stanley, Emily H.; Rosenthal, William C.; Esselman, Peter; Kendall, Anthony D; McIntyre, Peter B.

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Year Published: 2020

Determining habitat limitations of Maumee River walleye production to western Lake Erie fish stocks: Documenting a spawning ground barrier

Tributaries provide spawning habitat for three of four major sub-stocks of Lake Erie walleye (Sander vitreus). Despite anthropogenic degradation and the extirpation of other potamodromous species, the Maumee River, Ohio, USA continues to support one of the largest fish migrations in the Laurentian Great Lakes. To determine if spawning habitat...

Schmidt, Brian; Tucker, Taaja; Collier, Jessica; Mayer, Christine; Roseman, Edward F.; Stott, Wendylee; Pritt, Jeremy J.

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Year Published: 2020

A review of an electric weir and fishway in a Great Lakes tributary from conception to termination

A successful management plan requires clear goals and a process for evaluation. Without them, managers risk operational shifts in which continuous changes disguised as improvements may have little beneficial effect. The conception, design, and operation of an electric barrier and fishway on the Pere Marquette River of Lake Michigan serve as an...

Tews, Jenna; Adams, Jean V.; Mann, Kevin; Koon, Ellie; Heinrich, John