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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

Ecological Thresholds, Abiotic Stress, and Climate Change: A Conceptual Framework

Ecological Thresholds, Abiotic Stress, and Climate Change: A Conceptual Framework

U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward

U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward

GLSC Sea Lamprey Science Highlighted by Great Lakes Fishery Commission

GLSC Sea Lamprey Science Highlighted by Great Lakes Fishery Commission

Publications

Linking bathythermal habitat selection to management of a migratory freshwater fish Linking bathythermal habitat selection to management of a migratory freshwater fish

BackgroundFor migratory fishes, habitat selection in dimensions of temperature and depth may be jointly used to define the bathythermal niche. Seasonal and long-term changes in the availability of bathythermal habitat can cause behavioral responses that have consequences for managing interjurisdictional fisheries that target migratory fishes. Management of such fisheries typically relies...
Authors
Richard Kraus, Matthew Faust, Scott Colborne, Christopher Vandergoot

Quantifying benthic flux of Mysis biomass through diel vertical migration at the ecosystem scale Quantifying benthic flux of Mysis biomass through diel vertical migration at the ecosystem scale

Mysis diluviana is a macroinvertebrate that couples benthic and pelagic habitats on a daily timescale through diel vertical migration (DVM). However, quantifying how much Mysis biomass is exchanged between benthic and pelagic habitats at an ecosystem scale is difficult because of sampling limitations and variability in Mysis DVM behavior related to light and depth. Although Mysis are...
Authors
Brian O’Malley, Georgia Hoffman, Rosaura Chapina, Jason Stockwell, Collin Farrell

Lake depth and light conditions alter Mysis vertical distributions Lake depth and light conditions alter Mysis vertical distributions

Light regulates the vertical migration of many aquatic organisms. Mysis species couple pelagic and benthic habitats in lakes by diel vertical migrations (DVM), transporting energy and nutrients through the water column and food web. Although Mysis are generally assumed to remain on the bottom during the day, some have been observed in the pelagic zone during the day, indicating...
Authors
Rosaura Chapina, Brian O’Malley, Kelly Bowen, Martta Viljanen, Zachary Bess, Daniel Yule, Jens Nejstgaard, Stella Berger, Michael Rennie, Michael Paterson, Steven Pothoven, James Watkins, Lars Rudstam, Sudeep Chandra, Jason Stockwell

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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