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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

EcoNews - Vol. 7 | Issue 2

EcoNews - Vol. 7 | Issue 2

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

Publications

Genetic bottleneck and panmixia following the collapse of a Great Lakes lake whitefish fishery Genetic bottleneck and panmixia following the collapse of a Great Lakes lake whitefish fishery

Lake whitefish Coregonus clupeaformis abundance has declined throughout most of the Laurentian Great Lakes in North America for two decades. Current management strategies in Lake Erie assume that there is a single stock of lake whitefish that spawns in the West Basin. There is documented lake whitefish spawning activity throughout the lake, leading to questions about locally adapted...
Authors
Peter T. Euclide, Joseph Schmitt, Zak J. Slagle, Jared J. Homola, H. Andrew Cook, Pascal D. Wilkins, Thomas MacDougall, Scott T. Koenigbauer, Richard Kraus

Diet and trophic ecology of invasive Blue Catfish Ictalurus furcatus in an eastern shore tributary of the Chesapeake Bay Diet and trophic ecology of invasive Blue Catfish Ictalurus furcatus in an eastern shore tributary of the Chesapeake Bay

Blue Catfish Ictalurus furcatus were first introduced to Virginia tributaries of the Chesapeake Bay in the 1970s and have greatly expanded in population size and distribution, prompting ecological and economic concerns. This study investigates the diet and trophic ecology of invasive Blue Catfish in tidal, low-salinity reaches of the Nanticoke River and Marshyhope Creek, on the...
Authors
Zachary Crum, Clayton D. Raines, Christine Densmore, Regina Trott, Rodney T. Richardson, Christina Bradley, Corbin David Hilling, Noah R. Bressman

Arctic Grayling, scared to death: Are Brown Trout an impediment to Arctic Grayling reintroduction success in Michigan? Arctic Grayling, scared to death: Are Brown Trout an impediment to Arctic Grayling reintroduction success in Michigan?

Introduction: Arctic Grayling Thymallus arcticus were extirpated from Michigan in 1936. Their demise was caused by over-fishing, habitat destruction from large-scale logging, and Brook Trout Salvelinus fontinalis and Brown Trout Salmo trutta. Subsequently, Brook and Brown trout have become the dominant salmonid species in Michigan streams. Past attempts to restore Grayling to Michigan...
Authors
Nicole M. Watson, Daniel B. Hayes, Troy G. Zorn

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.
Learn More
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