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Shelby L Eagan, M.S. (Former Employee)

Science and Products

Spawning Whitefish and Invasive Mussels (SWIM) project supporting data collected in the Great Lakes, 2024-2025 overwinter physics and chemistry on spawning reefs Spawning Whitefish and Invasive Mussels (SWIM) project supporting data collected in the Great Lakes, 2024-2025 overwinter physics and chemistry on spawning reefs

This dataset records physical (photosynthetically available radiation, currents, wave action, and temperature) and physicochemical (specific conductivity, turbidity, pH, phycocyanin, chlorophyll, and dissolved oxygen) data from sensors moored during the winter season of 2024-2025 at two lake whitefish spawning reefs – Good Harbor Bay in Lake Michigan and Thunder Bay in Lake Huron. The...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026) Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026)

This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2024 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025) Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025)

This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2023 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2021 Cladophora biomass and supporting data collected in the Great Lakes, 2021

This dataset records Cladophora and associated benthic algae, collectively Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2021 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting data...
By
Great Lakes Science Center
A diver approaching a scientific instrument hanging in the water beneath research vessel
Benthic Sampling
Benthic Sampling
A diver approaching a scientific instrument hanging in the water beneath research vessel

Benthic Sampling

Benthic Sampling

USGS science diver (GLSC; Ann Arbor, Michigan) lays down quadrats for benthic sampling (background), while a surface crew member takes a water profile using a multiparameter sonde deployed over the side of the vessel.

By
Great Lakes Science Center
A diver approaching a scientific instrument hanging in the water beneath research vessel

Benthic Sampling

Benthic Sampling

USGS science diver (GLSC; Ann Arbor, Michigan) lays down quadrats for benthic sampling (background), while a surface crew member takes a water profile using a multiparameter sonde deployed over the side of the vessel.

By
Great Lakes Science Center
Two USGS SCUBA divers collecting water samples in Lake Erie
Dual Divers - Benthic Water Collection
Dual Divers - Benthic Water Collection
Two USGS SCUBA divers collecting water samples in Lake Erie

Dual Divers - Benthic Water Collection

Dual Divers - Benthic Water Collection

USGS scuba divers collect bottom water for environmental-DNA and nutrient analysis. Photo credit: Shelby Eagan, USGS.

By
Ecosystems Mission Area, Great Lakes Science Center
Two USGS SCUBA divers collecting water samples in Lake Erie

Dual Divers - Benthic Water Collection

Dual Divers - Benthic Water Collection

USGS scuba divers collect bottom water for environmental-DNA and nutrient analysis. Photo credit: Shelby Eagan, USGS.

By
Ecosystems Mission Area, Great Lakes Science Center

Non-USGS Publications**

Professional Publications:
Walker BK, Eagan S, Ames C, Brooke S, Keenan S and Baumstark R (2020). Shallow-Water Coral Communities Support the Separation of Marine Ecoregions on the West-Central Florida Gulf Coast. Front. Ecol. Evol. 8:210. doi: 10.3389/fevo.2020.00210

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Science and Products

Spawning Whitefish and Invasive Mussels (SWIM) project supporting data collected in the Great Lakes, 2024-2025 overwinter physics and chemistry on spawning reefs Spawning Whitefish and Invasive Mussels (SWIM) project supporting data collected in the Great Lakes, 2024-2025 overwinter physics and chemistry on spawning reefs

This dataset records physical (photosynthetically available radiation, currents, wave action, and temperature) and physicochemical (specific conductivity, turbidity, pH, phycocyanin, chlorophyll, and dissolved oxygen) data from sensors moored during the winter season of 2024-2025 at two lake whitefish spawning reefs – Good Harbor Bay in Lake Michigan and Thunder Bay in Lake Huron. The...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026) Cladophora biomass and supporting data collected in the Great Lakes, 2024 (ver. 2.0, February 2026)

This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2024 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025) Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025)

This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2023 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...
By
Great Lakes Science Center

Cladophora biomass and supporting data collected in the Great Lakes, 2021 Cladophora biomass and supporting data collected in the Great Lakes, 2021

This dataset records Cladophora and associated benthic algae, collectively Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2021 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting data...
By
Great Lakes Science Center
A diver approaching a scientific instrument hanging in the water beneath research vessel
Benthic Sampling
Benthic Sampling
A diver approaching a scientific instrument hanging in the water beneath research vessel

Benthic Sampling

Benthic Sampling

USGS science diver (GLSC; Ann Arbor, Michigan) lays down quadrats for benthic sampling (background), while a surface crew member takes a water profile using a multiparameter sonde deployed over the side of the vessel.

By
Great Lakes Science Center
A diver approaching a scientific instrument hanging in the water beneath research vessel

Benthic Sampling

Benthic Sampling

USGS science diver (GLSC; Ann Arbor, Michigan) lays down quadrats for benthic sampling (background), while a surface crew member takes a water profile using a multiparameter sonde deployed over the side of the vessel.

By
Great Lakes Science Center
Two USGS SCUBA divers collecting water samples in Lake Erie
Dual Divers - Benthic Water Collection
Dual Divers - Benthic Water Collection
Two USGS SCUBA divers collecting water samples in Lake Erie

Dual Divers - Benthic Water Collection

Dual Divers - Benthic Water Collection

USGS scuba divers collect bottom water for environmental-DNA and nutrient analysis. Photo credit: Shelby Eagan, USGS.

By
Ecosystems Mission Area, Great Lakes Science Center
Two USGS SCUBA divers collecting water samples in Lake Erie

Dual Divers - Benthic Water Collection

Dual Divers - Benthic Water Collection

USGS scuba divers collect bottom water for environmental-DNA and nutrient analysis. Photo credit: Shelby Eagan, USGS.

By
Ecosystems Mission Area, Great Lakes Science Center

Non-USGS Publications**

Professional Publications:
Walker BK, Eagan S, Ames C, Brooke S, Keenan S and Baumstark R (2020). Shallow-Water Coral Communities Support the Separation of Marine Ecoregions on the West-Central Florida Gulf Coast. Front. Ecol. Evol. 8:210. doi: 10.3389/fevo.2020.00210

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

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