Skip to main content
U.S. flag

An official website of the United States government

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

Multi-year cut-to-drown management limits Phragmites australis growth, belowground resources, and rhizome viability in Great Lakes wetlands Multi-year cut-to-drown management limits Phragmites australis growth, belowground resources, and rhizome viability in Great Lakes wetlands

The distribution and abundance of Phragmites in the Great Lakes coastal zone has expanded in part due to its unique ventilation physiology and its ability to take advantage of changes in lake levels over the past several decades. During an extended period of low lake levels in the early 2000s, Phragmites expanded into vast shallow water areas as lake bottoms were exposed. Many of those...
Authors
Wesley A. Bickford, Kaira A. Schaefer, Spenser L. Widin, Kurt P. Kowalski

Bird predation obscures detection of acoustic telemetry tags in fish Bird predation obscures detection of acoustic telemetry tags in fish

Increasing application of acoustic telemetry for determining survival, migration and habitat use of fishes highlights the need to improve interpretation of tracks that end abruptly: when is fishing mortality, predation, or some other cause to be inferred? Significant technological advances have led to the development of tags that “sense” predation and can be used to infer information...
Authors
Richard Kraus, James Roberts, Mark Richard Dufour, Branden E. Kohler

Drowned river mouth lakes are winter foraging habitats for the expanding Lake Michigan cisco Coregonus artedi population Drowned river mouth lakes are winter foraging habitats for the expanding Lake Michigan cisco Coregonus artedi population

Characterizing fish movements is required for understanding habitat use, energy flow, and trophic structure and can inform fisheries management. Drowned river mouth (DRM) lakes are productive inland habitats in the Laurentian Great Lakes basin used by migratory fishes. Despite recognition of their ecological connections to the Great Lakes, the value of DRM lakes as seasonal habitats is...
Authors
Ralph W. Tingley, Darryl W. Hondorp, Benjamin A. Turschak, Steven A. Pothoven, Amanda Susanne Ackiss, Jory Jonas, William W. Fetzer, Benjamin Scott Leonhardt, Andrew Edgar Honsey, Jeff Elliott, Lindsie Ann Egedy, Cory Brant, Lynn Benes, Kendra Kozlauskos, Renee Renauer-Bova, Ann J. Ropp

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
Was this page helpful?