Hydraulic controls on the aft deck of the R/V Alaskan Gyre
Hydraulic controls on the aft deck of the R/V Alaskan GyreHydraulic controls on the aft deck of the R/V Alaskan Gyre
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Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
Hydraulic controls on the aft deck of the R/V Alaskan Gyre
Hydraulic controls on the aft deck of the R/V Alaskan Gyre
The research vessel Alaskan Gyre is near a glacier in Prince William Sound, Alaska.
The research vessel Alaskan Gyre is near a glacier in Prince William Sound, Alaska.
Low-lying, salt-tolerant goose grazing lawn in foreground, giving way to higher elevation, salt-intolerant tundra in background. Geese require vegetation that is higher in quality and lower in biomass than caribou.
Low-lying, salt-tolerant goose grazing lawn in foreground, giving way to higher elevation, salt-intolerant tundra in background. Geese require vegetation that is higher in quality and lower in biomass than caribou.
Ninespine stickleback experimental release. The addition of small-bodied ninespine stickleback to fishless thermokarst ponds provided valuable information on their ability to influence invertebrate prey. Through consumption, ninespine stickleback substantially reduced invertebrate biomass during the 6-week experiment.
Ninespine stickleback experimental release. The addition of small-bodied ninespine stickleback to fishless thermokarst ponds provided valuable information on their ability to influence invertebrate prey. Through consumption, ninespine stickleback substantially reduced invertebrate biomass during the 6-week experiment.
Stream outflow from a lake on the Arctic Coastal Plain. Surface water connectivity affects the occupancy of fish species in lakes, influencing richness, composition, and food web complexity.
Stream outflow from a lake on the Arctic Coastal Plain. Surface water connectivity affects the occupancy of fish species in lakes, influencing richness, composition, and food web complexity.
Greater white-fronted geese on the Arctic Coastal Plain
Greater white-fronted geese on the Arctic Coastal Plain
USGS scientists holding a Varied Thrush recenly banded on the Seward Peninsula in Alaska.
USGS scientists holding a Varied Thrush recenly banded on the Seward Peninsula in Alaska.
Gray-cheeked Thrush with a band from the Seward Peninsula in Alaska.
Gray-cheeked Thrush with a band from the Seward Peninsula in Alaska.
Two Least Auklets sitting on rocks on Kasatochi Volcano four years after the catastrophic eruption in 2008.
Two Least Auklets sitting on rocks on Kasatochi Volcano four years after the catastrophic eruption in 2008.
A Least and Crested Auklet on Kasatochi Volcano in 2012
A Least and Crested Auklet on Kasatochi Volcano in 2012
A Crested Auklet egg wedged between rocks on Kasatochi Volcano in 2012. They laid there eggs in crevices because of the lack of vegetation on the island due to the August 2008 catastrophic eruption.
A Crested Auklet egg wedged between rocks on Kasatochi Volcano in 2012. They laid there eggs in crevices because of the lack of vegetation on the island due to the August 2008 catastrophic eruption.
Scientist holding an Arctic Warbler on the Seward Peninsula, Alaska. This photo is part of the Changing Arctic Ecosystems Boreal-Arctic Transition program.
Scientist holding an Arctic Warbler on the Seward Peninsula, Alaska. This photo is part of the Changing Arctic Ecosystems Boreal-Arctic Transition program.
Juvenile Bluethroat on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Juvenile Bluethroat on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Bluethroat on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Bluethroat on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
A stream winding through polygonal ground on the Arctic Coastal Plain
A stream winding through polygonal ground on the Arctic Coastal Plain
Spectacled Eiders nest along Arctic coasts of Alaska and Russia and on the Yukon-Kuskokwim Delta in Alaska. Spectacled eiders arrive on the breeding grounds as pairs in late-May or in June.
Spectacled Eiders nest along Arctic coasts of Alaska and Russia and on the Yukon-Kuskokwim Delta in Alaska. Spectacled eiders arrive on the breeding grounds as pairs in late-May or in June.
Researchers collect water chemistry and invertebrates from a degrading trough pond.
Researchers collect water chemistry and invertebrates from a degrading trough pond.
Female Western Sandpiper. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Female Western Sandpiper. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
USGS gage 15955000 Canning River above Staines River near Deadhorse, AK. Derek Frohbelter loading helicopter for return to Kavik.
USGS gage 15955000 Canning River above Staines River near Deadhorse, AK. Derek Frohbelter loading helicopter for return to Kavik.
Short-tailed Albatross taking off
Short-tailed Albatross taking off
A Short-tailed Albatross on the water
A Short-tailed Albatross on the water