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Florida Bay at sunset
Florida Bay at Sunset, 2018
Florida Bay at Sunset, 2018
Florida Bay at Sunset, 2018

After a long day collecting cores, the team of scientists watch the sun set over the Florida Bay.

After a long day collecting cores, the team of scientists watch the sun set over the Florida Bay.

USGS, NM Water Science Center, Gallinas Creek discharge measurement
Gallinas Creek discharge measurement, USGS
Gallinas Creek discharge measurement, USGS
Gallinas Creek discharge measurement, USGS

Hydrologic Technician Chris Peskuski making a discharge measurement above Gallinas Creek near Montezuma, NM (site data available at: https://waterdata.usgs.gov/nm/nwis/uv?site_no=08380500)

Graduate Students Mounting and Reading Otoliths
Graduate Students Mounting and Reading Otoliths
Graduate Students Mounting and Reading Otoliths
Graduate Students Mounting and Reading Otoliths

State University of New York-Brockport graduate student, Tom Bianchi, interprets alewife otolith ages (foreground) while student contractor Scott Minihkiem (background) mounts otoliths in epoxy. Bianchi is evaluating how alewife age influences reproductive success and was trained in otolith techniques at the GLSC’s Lake Ontario Biological Station.

State University of New York-Brockport graduate student, Tom Bianchi, interprets alewife otolith ages (foreground) while student contractor Scott Minihkiem (background) mounts otoliths in epoxy. Bianchi is evaluating how alewife age influences reproductive success and was trained in otolith techniques at the GLSC’s Lake Ontario Biological Station.

Grass Carp Eggs Under a Microscope
Grass Carp Eggs Under a Microscope
Grass Carp Eggs Under a Microscope
Grass Carp Eggs Under a Microscope

Grass Carp Eggs being examined under a microscope to determine developmental stage.

Grass Carp Eggs being examined under a microscope to determine developmental stage.

USGS
USGS Visual Identity (USGS logo) - Black (TM)
USGS Visual Identity (USGS logo) - Black (TM)
Green treefrog - Hyla cinerea
Green treefrog - Hyla cinerea
USGS
USGS Visual Identity (USGS logo) - Black (TM)
USGS Visual Identity (USGS logo) - Black (TM)
Green treefrog - Hyla cinerea

Green treefrogs call from their favorite habitat, rivers and lakes. They’re native to Louisiana and Florida, where these were recorded. Credit: Paul Moler, used with permission.

Green treefrogs call from their favorite habitat, rivers and lakes. They’re native to Louisiana and Florida, where these were recorded. Credit: Paul Moler, used with permission.

Mountain stream between two cliffs
Headwaters of the Colorado River
Headwaters of the Colorado River
Headwaters of the Colorado River

The headwaters of the Colorado and Gunnison Rivers was selected in 2019 as an Integrated Water Science Basin.

The headwaters of the Colorado and Gunnison Rivers was selected in 2019 as an Integrated Water Science Basin.

Holding a Chinook Salmon
Holding a Chinook Salmon
Holding a Chinook Salmon
Holding a Chinook Salmon

Carson Pritchard (left), a former GLSC contractor and 4-H camp counselor, shows off a Great Lakes Chinook salmon with a 4-H camper. Alewife are the primary forage of Chinook salmon. Consequently, understanding alewife age dynamics helps fishery managers balance predator numbers with the available prey.

Carson Pritchard (left), a former GLSC contractor and 4-H camp counselor, shows off a Great Lakes Chinook salmon with a 4-H camper. Alewife are the primary forage of Chinook salmon. Consequently, understanding alewife age dynamics helps fishery managers balance predator numbers with the available prey.

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption (AD)
Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption (AD)
Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption (AD)

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States.

Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption Response
Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption Response
Hovering Above—UAS’ Role in the 2018 Kīlauea Volcano Eruption Response

The 2018 Kīlauea Volcano eruption marked the first time the federal government used Unmanned Aircraft Systems (UAS) to assist in an eruption response in the United States.

hydrothermal area disturbs boardwalk passage in Yellowstone
hydrothermal area disturbs boardwalk passage in Yellowstone
hydrothermal area disturbs boardwalk passage in Yellowstone
hydrothermal area disturbs boardwalk passage in Yellowstone

A section of the Porcelain Basin Loop boardwalk in the Norris Geyser Basin was removed because the ground below sections of the boardwalk became too hot and made charcoal of the wood footings that support the structure. Luckily enough in this case, the boardwalk was shifted about 3 feet to avoid the new hot ground.

A section of the Porcelain Basin Loop boardwalk in the Norris Geyser Basin was removed because the ground below sections of the boardwalk became too hot and made charcoal of the wood footings that support the structure. Luckily enough in this case, the boardwalk was shifted about 3 feet to avoid the new hot ground.

A labeled illustration shows a barrier island from ocean on the right to lagoon on the left.
Illustration describes a barrier island from ocean to lagoon
Illustration describes a barrier island from ocean to lagoon
Illustration describes a barrier island from ocean to lagoon

Illustration shows the cross-section of a barrier island progressing from ocean (on the right) to marsh and then lagoon (on the left). 

Images of multiple oceanside beaches and dunes at Fire Island, New York.
Images of multiple oceanside beaches and dunes at Fire Island New York
Images of multiple oceanside beaches and dunes at Fire Island New York
Juvenile salt marsh harvest mouse
Juvenile Salt Marsh Harvest Mouse (Reithrodontomys raviventris)
Juvenile Salt Marsh Harvest Mouse (Reithrodontomys raviventris)
Juvenile Salt Marsh Harvest Mouse (Reithrodontomys raviventris)

USGS wildlife biologists holding a juvenile salt marsh harvest mouse (Reithrodontomys raviventris). The species is listed as "endangered" under the Endangered Species Act of 1973.

Kīlauea Volcano’s 2018 summit collapse
Kīlauea Volcano’s 2018 summit collapse
Kīlauea Volcano’s 2018 summit collapse
Kīlauea Volcano’s 2018 summit collapse

Kīlauea Volcano’s 2018 summit collapse, shown here on July 28 (left), and the lower East Rift Zone fissure 8 lava flow, shown here on July 2 (right), will be the focus of “Volcano Awareness Month” talks offered in January 2019.

Kīlauea Volcano’s 2018 summit collapse, shown here on July 28 (left), and the lower East Rift Zone fissure 8 lava flow, shown here on July 2 (right), will be the focus of “Volcano Awareness Month” talks offered in January 2019.

house next to landslide with snowcovered ground
Landslide near Potter Hill, Anchorage, Alaska
Landslide near Potter Hill, Anchorage, Alaska
Landslide near Potter Hill, Anchorage, Alaska

Landslide near Potter Hill, Anchorage, Alaska, after 2018 Anchorage earthquake.

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