A melanistic (all dark) Common Murre flies above its colony on Gull Island in Kachemak Bay, Alaska, 2018. See related paper published in the Marine Ornithology: Journal of Seabird Research and Conservation at: http://www.marineornithology.org/PDF/50_2/50_2_225-227.pdf.
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.
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Melanistic Common Murre flies near its colony
A melanistic (all dark) Common Murre flies above its colony on Gull Island in Kachemak Bay, Alaska, 2018. See related paper published in the Marine Ornithology: Journal of Seabird Research and Conservation at: http://www.marineornithology.org/PDF/50_2/50_2_225-227.pdf.
Geneticist preparing environmental samples containing Elodea species
Dr. Damian Menning, Geneticist with the USGS Alaska Science Center, preparing environmental samples containing Elodea species to test universal eDNA Elodea sp. primers that can be used to detect all five Elodea sp. in aquatic samples.
Dr. Damian Menning, Geneticist with the USGS Alaska Science Center, preparing environmental samples containing Elodea species to test universal eDNA Elodea sp. primers that can be used to detect all five Elodea sp. in aquatic samples.
Damian Menning preparing eDNA Elodea samples
Dr. Damian Menning, Geneticist with the USGS Alaska Science Center, preparing environmental samples containing Elodea species to test universal eDNA Elodea species primers that can be used to detect all five Elodea sp. in aquatic samples.
Dr. Damian Menning, Geneticist with the USGS Alaska Science Center, preparing environmental samples containing Elodea species to test universal eDNA Elodea species primers that can be used to detect all five Elodea sp. in aquatic samples.
Common Murre flying in lower Cook Inlet, Alaska
Common Murre flying in lower Cook Inlet, Alaska.
Common Murre flying in lower Cook Inlet, Alaska.
A Northern Fulmar flying in Lower Cook Inlet, Alaska
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Juvenile Bald Eagle flies away with Black-legged Kittiwake chick
A juvenile Bald Eagle flies away with a young Black-legged Kittiwake chick taken from its nest at Gull Island, Alaska.
A juvenile Bald Eagle flies away with a young Black-legged Kittiwake chick taken from its nest at Gull Island, Alaska.
A Northern Fulmar on the water offshore of Anchor Point, Cook Inlet
A Northern Fulmar on the water offshore of Anchor Point, Cook Inlet on July 18, 2018.
A Northern Fulmar on the water offshore of Anchor Point, Cook Inlet on July 18, 2018.
A Northern Fulmar on the water in Lower Cook Inlet
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Rainbow on the Taku River
Heading upriver in the USGS boat.
Scientists deploy a mid-water trawl
USGS scientists Mayumi Arimitsu and John Piatt deploy a mid-water trawl to collect forage fish and zooplankton in Cook Inlet, Alaska.
USGS scientists Mayumi Arimitsu and John Piatt deploy a mid-water trawl to collect forage fish and zooplankton in Cook Inlet, Alaska.
Scientists process catch from a mid-water trawl
USGS scientists John Piatt and Mayumi Arimitsu process the catch from a mid-water trawl to collect forage fish and zooplankton in Cook Inlet, Alaska.
USGS scientists John Piatt and Mayumi Arimitsu process the catch from a mid-water trawl to collect forage fish and zooplankton in Cook Inlet, Alaska.
USGS ecologists map monitor vegetation and landscape characteristics
USGS ecologists map and monitor vegetation and landscape characteristics at long-term ecological monitoring sites on the Yukon-Kuskokwim Delta, AK
USGS ecologists map and monitor vegetation and landscape characteristics at long-term ecological monitoring sites on the Yukon-Kuskokwim Delta, AK
Female Pribilof rock sandpiper, St. Matthew Island, Bering Sea
In 2018, biologists conducted a second population survey to reassess the population status and habitat associations of Pribilof rock sandpipers breeding on St. Matthew and Hall Islands in the Bering Sea, Alaska. Previous work estimated the population size at approximately 19,800 birds (Ruthrauff et al. 2012).
In 2018, biologists conducted a second population survey to reassess the population status and habitat associations of Pribilof rock sandpipers breeding on St. Matthew and Hall Islands in the Bering Sea, Alaska. Previous work estimated the population size at approximately 19,800 birds (Ruthrauff et al. 2012).
Bull Seal Point on St. Matthew Island, Alaska
Bull Seal Point on St. Matthew Island, Alaska.
Bull Seal Point on St. Matthew Island, Alaska.
Christina Ahlstrom and gull with satellite transmitter
Christina Ahlstrom holding a gull tagging with a satellite transmitter.
Christina Ahlstrom holding a gull tagging with a satellite transmitter.
Black-legged Kittiwakes forage on Pacific sand lance and capelin
Black-legged Kittiwakes forage on Pacific sand lance and capelin near their colony on Gull Island, Cook Inlet on June 28, 2018.
Black-legged Kittiwakes forage on Pacific sand lance and capelin near their colony on Gull Island, Cook Inlet on June 28, 2018.
Black-legged Kittiwakes and Common Murres flush from a Bald Eagle
Black-legged Kittiwakes and Common Murres flush from a Bald Eagle at their breeding colony at Gull Island, Alaska.
Black-legged Kittiwakes and Common Murres flush from a Bald Eagle at their breeding colony at Gull Island, Alaska.
Common Murres with visibly protruding keels
Common Murres with visibly protruding keels flush from Gull Island, Kachemak Bay, Alaska.
Common Murres with visibly protruding keels flush from Gull Island, Kachemak Bay, Alaska.
Spawning Yukon River Chinook salmon
A spawning Yukon River Chinook salmon (Oncorhynchus tshawytscha) captured near Pilot Station, Alaska, in June 2018 as part of an experimental temperature manipulation study to validate heat stress biomarkers.
A spawning Yukon River Chinook salmon (Oncorhynchus tshawytscha) captured near Pilot Station, Alaska, in June 2018 as part of an experimental temperature manipulation study to validate heat stress biomarkers.
Female McKay's Bunting on St. Matthew Island
Female McKay's Bunting on St. Matthew Island.
Female McKay's Bunting on St. Matthew Island.
Male McKay's Bunting on St. Matthew Island
Male McKay's Bunting on St. Matthew Island
Male McKay's Bunting on St. Matthew Island