Two juvenile broad whitefish (Coregonus nasus) from the Beaufort Sea, Alaska. This study will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
Images
Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
Filter Total Items: 1592
Two juvenile broad whitefish
Two juvenile broad whitefish (Coregonus nasus) from the Beaufort Sea, Alaska. This study will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
Four Arctic cod (Boreogadus saida)
Four Arctic cod (Boreogadus saida) from the Beaufort Sea, Alaska This study will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
Four Arctic cod (Boreogadus saida) from the Beaufort Sea, Alaska This study will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
A caribou stands next to a pipeline
A caribou (Rangifer tarandus) stands next to a pipeline. This photo was taken while conducting field work in Northern Alaska.
A caribou (Rangifer tarandus) stands next to a pipeline. This photo was taken while conducting field work in Northern Alaska.
Two Black-legged Kittiwakes flying
Two Black-legged Kittiwakes fly around the nesting colony on Gull Island in Kachemak Bay, Alaska.
Two Black-legged Kittiwakes fly around the nesting colony on Gull Island in Kachemak Bay, Alaska.
Gull Island, Kachemak Bay, Alaska
Thousands of seabirds occupy Gull Island, an important seabird nesting colony in Kachemak Bay, Alaska.
Thousands of seabirds occupy Gull Island, an important seabird nesting colony in Kachemak Bay, Alaska.
Common Murres on Gull Island, Kachemak Bay, Alaska
Common Murres on Gull Island, Kachemak Bay, AlaskaCommon Murres nest along cliff edges and on the top of Gull Island in Kachemak Bay, Alaska.
Common Murres on Gull Island, Kachemak Bay, Alaska
Common Murres on Gull Island, Kachemak Bay, AlaskaCommon Murres nest along cliff edges and on the top of Gull Island in Kachemak Bay, Alaska.
Arctic smelt
Arctic smelt (Osmerus mordax), Beaufort Sea, Alaska. An Arctic smelt or rainbow smelt, (Osmerus mordax) from the Beaufort Sea, Alaska.
Arctic smelt (Osmerus mordax), Beaufort Sea, Alaska. An Arctic smelt or rainbow smelt, (Osmerus mordax) from the Beaufort Sea, Alaska.
Scenic view of the Beaufort Sea, Alaska
A scenic view of the Beaufort Sea, Alaska. This study site will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
A scenic view of the Beaufort Sea, Alaska. This study site will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
Ice floating in the Beaufort Sea, Alaska
Chucks of ice floats in the Beaufort Sea, Alaska. This study site will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
Chucks of ice floats in the Beaufort Sea, Alaska. This study site will evaluate the nearshore marine feeding areas of breeding adult red-throated loons and assess the response of loon reproductive success and nutritional content of nearshore fish communities.
View of fog and clouds in the Aaron Creek valley, Alaska
View of fog and clouds in the Aaron Creek valley, AlaskaView of fog and clouds in the Aaron Creek valley with tail of R66 helicopter in right foreground.
View of fog and clouds in the Aaron Creek valley, Alaska
View of fog and clouds in the Aaron Creek valley, AlaskaView of fog and clouds in the Aaron Creek valley with tail of R66 helicopter in right foreground.
USGS Biologist Ashley Stanek pulls a small mesh trawl net by hand
USGS Biologist Ashley Stanek pulls a small mesh trawl net by handUSGS Alaska Science Center Biologist Ashley Stanek pulls a small mesh trawl net by hand to examine forage fish prey available for red-throated loons in Foggy Island Bay, Beaufort Sea, Alaska,
USGS Biologist Ashley Stanek pulls a small mesh trawl net by hand
USGS Biologist Ashley Stanek pulls a small mesh trawl net by handUSGS Alaska Science Center Biologist Ashley Stanek pulls a small mesh trawl net by hand to examine forage fish prey available for red-throated loons in Foggy Island Bay, Beaufort Sea, Alaska,
Surface trawl retrieval
The field crew pulls in a surface trawl net in the Beaufort Sea, Alaska on the back deck of the R/V Proteus.
The field crew pulls in a surface trawl net in the Beaufort Sea, Alaska on the back deck of the R/V Proteus.
Looking for fish in the Beaufort Sea, Alaska
Vanessa von Biela (USGS – ASC) examines the empty cod end of a surface trawl net while looking for fish in the Beaufort Sea, Alaska.
Vanessa von Biela (USGS – ASC) examines the empty cod end of a surface trawl net while looking for fish in the Beaufort Sea, Alaska.
Saffron cod and Arctic cod
A saffron cod (front, Eleginus gracilis) and an Arctic cod (behind, Boreogadus saida) from the Beaufort Sea, Alaska.
A saffron cod (front, Eleginus gracilis) and an Arctic cod (behind, Boreogadus saida) from the Beaufort Sea, Alaska.
USGS Geologist approaches an old exploration trench
USGS Geologist approaches an old exploration trenchGeologist George Case approaches an old exploration trench exposing stratiform Ag-Sn-Pb-Zn mineralization in the Groundhog Basin deposit area.
USGS Geologist approaches an old exploration trench
USGS Geologist approaches an old exploration trenchGeologist George Case approaches an old exploration trench exposing stratiform Ag-Sn-Pb-Zn mineralization in the Groundhog Basin deposit area.
USGS geologist approaches helicopter with samples
USGS geologist George Case approaches an R66 helicopter with samples collected from mineralized rocks near the Groundhog Basin Ag-Sn-Pb-Zn deposit.
USGS geologist George Case approaches an R66 helicopter with samples collected from mineralized rocks near the Groundhog Basin Ag-Sn-Pb-Zn deposit.
Rock hammer shows meter-scale width of a felsic sill
Rock hammer shows meter-scale width of a felsic sillRock hammer shows meter-scale width of a felsic sill associated with zinnwaldite-bearing Sn-granite at the Groundhog Basin Ag-Sn-Pb-Zn deposit. The layered host rocks to the sill are garnet-quartz-biotite gneiss.
Rock hammer shows meter-scale width of a felsic sill
Rock hammer shows meter-scale width of a felsic sillRock hammer shows meter-scale width of a felsic sill associated with zinnwaldite-bearing Sn-granite at the Groundhog Basin Ag-Sn-Pb-Zn deposit. The layered host rocks to the sill are garnet-quartz-biotite gneiss.
USGS geologist breaks mineralized rocks for examination and sample collection
USGS geologist breaks mineralized rocks for examination and sample collectionUSGS geologist George Case breaks mineralized rocks for examination and sample collection at the Groundhog Basin Ag-Sn-Pb-Zn deposit.
USGS geologist breaks mineralized rocks for examination and sample collection
USGS geologist breaks mineralized rocks for examination and sample collectionUSGS geologist George Case breaks mineralized rocks for examination and sample collection at the Groundhog Basin Ag-Sn-Pb-Zn deposit.
Banding a red-throated loon
Alaska Native Science and Engineering Program (ANSEP) student Austin Bergerson attaching a coded metal band to the leg of red-throated loon (Gavia stellata).
Alaska Native Science and Engineering Program (ANSEP) student Austin Bergerson attaching a coded metal band to the leg of red-throated loon (Gavia stellata).
Happy harbor seal
A harbor seal rests in a bed of seaweed at low tide in Prince William Sound, Alaska.
A harbor seal rests in a bed of seaweed at low tide in Prince William Sound, Alaska.
Trawl catch processing
Biologist Dan Donnelly processes fish caught in a midwater trawl aboard the USGS Alaskan Gyre.
Biologist Dan Donnelly processes fish caught in a midwater trawl aboard the USGS Alaskan Gyre.