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Great Lakes Science Center

Welcome!  The Great Lakes Science Center (GLSC) is part of the Midcontinent Region of the USGS, DOI Regions 3 and 5. 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. 

News

A Tale of Two Islands and the Future of an Ocean Sentinel Seabird

A Tale of Two Islands and the Future of an Ocean Sentinel Seabird

Tree rings provide an important multi-century context for the current wildfire crisis

Tree rings provide an important multi-century context for the current wildfire crisis

Photo Edition | Field Season 2024 - Vol. 2026 | Issue Spring

Photo Edition | Field Season 2024 - Vol. 2026 | Issue Spring

Publications

A genomic tool to tackle cryptic diversity demonstrates the potential for off-target use of GT-seq panels A genomic tool to tackle cryptic diversity demonstrates the potential for off-target use of GT-seq panels

A comprehensive understanding of life history is vital to successful species conservation and management. When different life history stages are accompanied by considerable morphological or cryptic variation, such as the egg and larval phases exhibited by most fishes, genomic tools are essential for identifying species so that early-life ecology questions can be studied. Genotyping-in...
Authors
Amanda Susanne Ackiss, Mark R. Vinson, Ann J. Ropp, Kristen M. Gruenthal, Trevor J. Krabbenhoft, Joseph V. Siegel, Wendylee Stott, Daniel L. Yule, Wesley A. Larson

Availability of dark daytime refuge may limit mysid abundance in the Laurentian Great Lakes Availability of dark daytime refuge may limit mysid abundance in the Laurentian Great Lakes

The zooplankton Mysis diluviana is a major component of the Laurentian Great Lakes food web and has recently declined in abundance in both lakes Michigan and Huron. Drivers of these declines are not well understood. Here, we explore the hypothesis that recent increases in water clarity have contributed to the decline of M. diluviana (mysids) by limiting the availability of daytime dark...
Authors
Kayden C. Nasworthy, James M. Watkins, Thomas M. Evans, Hannah B. Blair, Sarah D. Lawhun, Suresh A. Sethi, Timothy P. O’Brien, David M. Warner, Steven A. Pothoven, Anne E. Scofield, Peter C. Esselman, Lars G. Rudstam

On the importance of ichthyoplankton monitoring for invasive grass carp control in the Laurentian Great Lakes On the importance of ichthyoplankton monitoring for invasive grass carp control in the Laurentian Great Lakes

Grass carp (Ctenopharyngodon idella) is an invasive herbivore observed in small numbers in the Laurentian Great Lakes since the 1980 s with records from all lakes except Lake Superior. Identification of diploid, age-1 + grass carp from the Sandusky River, a Lake Erie tributary, in 2012, prompted targeted efforts to evaluate the status of grass carp reproduction in the Lake Erie Basin. In...
Authors
Corbin David Hilling, Ryan E. Brown, Holly Susan Embke, Kristina D. Flanigan, Nicole R. King, Amy E. George, Robert D. Hunter, P. Ryan Jackson, Christine M. Mayer, Jeremy J Pritt, Song S. Qian, Catherine A. Richter, James J. Roberts, Patrick Kocovsky

Science

eDNA for Water-Quality Monitoring and Public Health Protection

eDNA for Water-Quality Monitoring and Public Health Protection

By analyzing genetic traces left behind in water, eDNA provides early warning signs of problems—helping managers respond faster, protect public health, and keep freshwater ecosystems resilient.
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