A threatened Waccamaw killifish from the Southeastern Atlantic Slope.
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Waccamaw Killifish
A threatened Waccamaw killifish from the Southeastern Atlantic Slope.
Endangered Holiday Darter
An endangered holiday darter (Amicalola population). Darters are among the most threatened Southeastern fish; they have been likened to aquatic canaries.
An endangered holiday darter (Amicalola population). Darters are among the most threatened Southeastern fish; they have been likened to aquatic canaries.
Duckweeds, Water Lettuce, and Watermoss
Aquatic plants typical of still waters, ponds, and shallow wetlands: duckweeds, water lettuce, and watermoss.
Aquatic plants typical of still waters, ponds, and shallow wetlands: duckweeds, water lettuce, and watermoss.
Sicklefin Redhorse
A threatened sicklefin redhorse from the Tennessee River.
A threatened sicklefin redhorse from the Tennessee River.
USGS Hawaiian Volcano Observatory
The USGS Hawaiian Volcano Observatory is perched on the rim of Kilauea Volcano's summit caldera (next to the Thomas A. Jaggar Museum in Hawai'i Volcanoes National Park), providing a spectacular view of the active vent in Halema‘uma‘u Crater.
The USGS Hawaiian Volcano Observatory is perched on the rim of Kilauea Volcano's summit caldera (next to the Thomas A. Jaggar Museum in Hawai'i Volcanoes National Park), providing a spectacular view of the active vent in Halema‘uma‘u Crater.
The USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit Eruption
The USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit EruptionThe USGS Hawaiian Volcano Observatory (foreground) is located on the caldera rim of Kilauea Volcano, Hawai'ithe most active volcano in the world. The observatory's location provides an excellent view of summit eruptive activity, which began in 2008.
The USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit Eruption
The USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit EruptionThe USGS Hawaiian Volcano Observatory (foreground) is located on the caldera rim of Kilauea Volcano, Hawai'ithe most active volcano in the world. The observatory's location provides an excellent view of summit eruptive activity, which began in 2008.
USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit Eruption
USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit EruptionThe USGS Hawaiian Volcano Observatory (foreground) is located on the caldera rim of Kilauea Volcano, Hawai'i—the most active volcano in the world. The observatory's location provides an excellent view of summit eruptive activity, which began in 2008.
USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit Eruption
USGS Hawaiian Volcano Observatory Monitors Kilauea's Summit EruptionThe USGS Hawaiian Volcano Observatory (foreground) is located on the caldera rim of Kilauea Volcano, Hawai'i—the most active volcano in the world. The observatory's location provides an excellent view of summit eruptive activity, which began in 2008.
Aerial of Beaver Creek, Alaska
Aquatic ecosystems make a difference in the carbon cycle. The location in this photo is located near Beaver, Alaska approximately 100 miles north of Fairbanks.
Aquatic ecosystems make a difference in the carbon cycle. The location in this photo is located near Beaver, Alaska approximately 100 miles north of Fairbanks.
Meandering Stream on the North Dakota Plains
A meandering stream that was a possible biomonitoring site for a USGS project in North Dakota.
A meandering stream that was a possible biomonitoring site for a USGS project in North Dakota.
Canadian Helicopter on U.S. Coast Guard Cutter Healy
Canadian Helicopter on U.S. Coast Guard Cutter HealyA Canadian helicopter on U.S. Coast Guard Cutter Healy after flying from the Canadian Coast Guard ship Louis S. St. Laurent in the Arctic Ocean.
Canadian Helicopter on U.S. Coast Guard Cutter Healy
Canadian Helicopter on U.S. Coast Guard Cutter HealyA Canadian helicopter on U.S. Coast Guard Cutter Healy after flying from the Canadian Coast Guard ship Louis S. St. Laurent in the Arctic Ocean.
Water Samples from Conductivity Temperature Depth Profiler (CTD)
Water Samples from Conductivity Temperature Depth Profiler (CTD)Robert Sanders, with Temple University, is collecting water samples from the CTD. Both Robert and Rebecca Gast, with Woods Hole Oceanographic Institution, were using the samples to study microorganisms in the Arctic Ocean.
Water Samples from Conductivity Temperature Depth Profiler (CTD)
Water Samples from Conductivity Temperature Depth Profiler (CTD)Robert Sanders, with Temple University, is collecting water samples from the CTD. Both Robert and Rebecca Gast, with Woods Hole Oceanographic Institution, were using the samples to study microorganisms in the Arctic Ocean.
Polar Bears along Arctic Sea Ice
Polar bears along sea ice in the Arctic Ocean.
Polar bears along sea ice in the Arctic Ocean.
Polar Bear along Arctic Sea Ice
Polar bear along sea ice in the Arctic Ocean.
Polar bear along sea ice in the Arctic Ocean.
Arctic Sea Ice
Image of sea ice along the Arctic Ocean.
Image of sea ice along the Arctic Ocean.
Arctic Sea Ice
Image of sea ice along the Arctic Ocean.
Image of sea ice along the Arctic Ocean.
Arctic Sea Ice
Image of Arctic sea ice.
Arctic Sea Ice
Image of sea ice along the Arctic Ocean.
Image of sea ice along the Arctic Ocean.
Arctic Sea Ice
Image of Arctic sea ice.
Arctic Sea Ice
Image of sea ice along the Arctic Ocean.
Image of sea ice along the Arctic Ocean.
Arctic Sea Ice
Image of Arctic sea ice.
Arctic Sea Ice
Image of Arctic sea ice.