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: 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

Date published: September 18, 2019

Patrick Kocovsky Participates in Press Forum with Representative Joyce on Asian Carp in Lake Erie

Communicating Invasive Species Issues with Congress.

Publications

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Year Published: 2020

Spatial and vertical bias in down-looking ship-based acoustic estimates of fish density in Lake Superior: Lessons learned from multi-directional acoustics

Hydroacoustic surveys using hull-mounted down-looking transducers are useful for estimating pelagic fish densities; however, this method may miss shallow fish owing to the acoustic surface dead zone and vessel avoidance. Our objective was to compare pelagic fish density estimates acquired by a traditional down-looking acoustic survey to estimates...

Grow, Ryan C; Hrabik, Thomas R.; Yule, Daniel; Matthias, Bryan G.; Myers, Jared T.; Abel, Chad

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Year Published: 2020

Review of methods to repair and maintain lithophilic fish spawning habitat

Rocky reefs provide important spawning and refuge habitats for lithophilic spawning fishes. However, many reefs have been lost or severely degraded through anthropogenic effects like dredging, channelization, or sedimentation. Constructed reefs have been used to mitigate these effects in some systems, but these reefs are also subject to...

Baetz, Audrey; Tucker, Taaja; DeBruyne, R.; Gatch, Alex; Hook, T.; Fischer, J.; Roseman, Edward F.

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Year Published: 2020

Investigating apparent misalignment of predator-prey dynamics: Great Lakes lake trout and sea lampreys

Interpreting ecological dynamics is challenging when observed patterns are not aligned with presumed models. Investigating possible sources of uncertainty is critical to understand the underlying system and ultimately inform management decisions. In this study, we used simulation to investigate the hypothesis that observed inconsistencies in Great...

Adams, Jean V.; Jones, Michael L.; Bence, James R.