Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Browse images from a wide range of science topics covered by USGS.
Brian Robinson (USGS) and Ben Weitzman (NOAA) record observations along nearshore transects in Kachemak Bay, Alaska. USGS is studying the migration strategies and movement ecology of Black Oystercatchers as part of the new tracking study.
Brian Robinson (USGS) and Ben Weitzman (NOAA) record observations along nearshore transects in Kachemak Bay, Alaska. USGS is studying the migration strategies and movement ecology of Black Oystercatchers as part of the new tracking study.
USGS Biologist Caitlin Marsteller releases a Black Oystercatcher after assisting with the collection of morphometric data and tagging. Data were collected from Black Oystercatchers as part of a new study to better understand migration strategies and movement ecology of the species.
USGS Biologist Caitlin Marsteller releases a Black Oystercatcher after assisting with the collection of morphometric data and tagging. Data were collected from Black Oystercatchers as part of a new study to better understand migration strategies and movement ecology of the species.
USGS Biologist Caitlin Marsteller prepares to release a Black Oystercatcher after assisting with the collection of morphometric data and tagging. Data were collected from Black Oystercatchers as part of a new study to better understand migration strategies and movement ecology of the species.
USGS Biologist Caitlin Marsteller prepares to release a Black Oystercatcher after assisting with the collection of morphometric data and tagging. Data were collected from Black Oystercatchers as part of a new study to better understand migration strategies and movement ecology of the species.
Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.
Researchers instruct volunteers on how to collect dragonfly larvae in Glacier NP as a part of the Dragonfly Mercury Project.
Experimental tanks used in a juvenile Pacific salmon heat stress experiment for Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch).
Experimental tanks used in a juvenile Pacific salmon heat stress experiment for Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch).
A juvenile Chinook salmon (Oncorhynchus tshawytscha) used in a heat stress experiment. Alaska Department of Fish and Game’s William Jack Hernandez Sport Fish Hatchery, Anchorage, Alaska, USA.
A juvenile Chinook salmon (Oncorhynchus tshawytscha) used in a heat stress experiment. Alaska Department of Fish and Game’s William Jack Hernandez Sport Fish Hatchery, Anchorage, Alaska, USA.
Infographic showing water temperature and discharge (flow) data from rivers with heat-related salmon mortality, drought-related salmon mortality, and normal salmon survival in Alaska during 2019.
Infographic showing water temperature and discharge (flow) data from rivers with heat-related salmon mortality, drought-related salmon mortality, and normal salmon survival in Alaska during 2019.
Bokan Mountain, Alaska.
Keychain developed for USGS outreach activities about bird banding and reporting in Inupiaq and English. Inupiaq translation provided by Qaiyaan and Jana Harcharek.
Keychain developed for USGS outreach activities about bird banding and reporting in Inupiaq and English. Inupiaq translation provided by Qaiyaan and Jana Harcharek.
Tundra swan on the Colville River Delta, Alaska 2013.
Tundra swan on the Colville River Delta, Alaska 2013.
Beaver dam and lodge on the Wrench Creek, Noatak National Preserve
Beaver dam and lodge on the Wrench Creek, Noatak National Preserve
Beaver dam complex and lodge at the confluence of Wrench Creek and Kelly River, Noatak National Preserve
Beaver dam complex and lodge at the confluence of Wrench Creek and Kelly River, Noatak National Preserve
Adult Pacific salmon (Oncorhynchus nerka) caught in impounded water above beaver dam. >25 rKM (river KM) from coast.
Adult Pacific salmon (Oncorhynchus nerka) caught in impounded water above beaver dam. >25 rKM (river KM) from coast.
Keychain developed for USGS outreach activities about bird banding and reporting in Yup'ik and English. Yup'ik translation provided by Jakob Sipary, Alaska Native Science and Engineering Program (ANSEP).
Keychain developed for USGS outreach activities about bird banding and reporting in Yup'ik and English. Yup'ik translation provided by Jakob Sipary, Alaska Native Science and Engineering Program (ANSEP).
The Alaska North Slope is rich in gas hydrate-bearing formations which contain significant natural gas resources. The USGS has released a geologically based assessment for how much of these resources is technically recoverable.
The Alaska North Slope is rich in gas hydrate-bearing formations which contain significant natural gas resources. The USGS has released a geologically based assessment for how much of these resources is technically recoverable.
Puffin flying at Izembek National Wildlife Refuge Alaska with Frosty Peak in background.
Puffin flying at Izembek National Wildlife Refuge Alaska with Frosty Peak in background.
Laura Hubbard of the USGS Upper Midwest Water Science Center takes water chemistry measures on the Alaska Peninsula as part of research to understand how long influenza viruses remain viable in the environment.
Laura Hubbard of the USGS Upper Midwest Water Science Center takes water chemistry measures on the Alaska Peninsula as part of research to understand how long influenza viruses remain viable in the environment.
Harbor seals poking their heads above water near shore in Russell Creek, Cold Bay, Alaska.
Harbor seals poking their heads above water near shore in Russell Creek, Cold Bay, Alaska.
Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019
Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019
Measuring temperature and dissolved oxygen in impounded water of beaver dam on the Wrench Creek, Noatak National Preserve.
Measuring temperature and dissolved oxygen in impounded water of beaver dam on the Wrench Creek, Noatak National Preserve.
Arctic grayling (Thymallus arcticus) and Dolly varden (Salvelinus malma) from impounded water of beaver dam on the Wrench Creek, Noatak National Preserve.
Arctic grayling (Thymallus arcticus) and Dolly varden (Salvelinus malma) from impounded water of beaver dam on the Wrench Creek, Noatak National Preserve.