Fish biologist with Shortnose sucker
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Fish biologist with Shortnose sucker
Fish biologist with Shortnose sucker
Downloading data during a flood on the Williamson River
Researcher from Klamath Falls Field Station downloading data during a flood on the Williamson River Oregon.
Researcher from Klamath Falls Field Station downloading data during a flood on the Williamson River Oregon.
The Dalles Dam Chinook salmon monitoring
Juvenile Chinook salmon monitoring below the The Dalles Dam on the Columbia River.
Juvenile Chinook salmon monitoring below the The Dalles Dam on the Columbia River.
Juvenile herring with classic signs of VHS
Juvenile herring with classic signs of VHS including focal hemorrhaging around the eyes, mouth, and fin bases.
Juvenile herring with classic signs of VHS including focal hemorrhaging around the eyes, mouth, and fin bases.
Researcher working at the microscope
Researcher, works at the microscope, Marrowstone Marine Field Station, Nordland, WA.
Researcher, works at the microscope, Marrowstone Marine Field Station, Nordland, WA.
White Sturgeon (Acipenser transmontanus)
Juvenile white sturgeon held by human hand. Columbia River, bottom trawl for yoy indexing.
Juvenile white sturgeon held by human hand. Columbia River, bottom trawl for yoy indexing.
Weighing a white sturgeon
Weighing a juvenile white sturgeon. Columbia River, bottom trawl for yoy indexing.
Weighing a juvenile white sturgeon. Columbia River, bottom trawl for yoy indexing.
Researchers surgically implanting transmitter, white sturgeon
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon
Researchers preparing to surgically implant transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers preparing to surgically implant transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.
Particle size analysis of the surface riverbed material
Gary Barton (USGS) and Jeff Laufle (U.S. Army Corps of Engineers) carried out a particle size analysis of the surface riverbed material on the right bank (facing downstream) of the Snake River about three miles below Ice Harbor Dam near Burbank, WA.
Gary Barton (USGS) and Jeff Laufle (U.S. Army Corps of Engineers) carried out a particle size analysis of the surface riverbed material on the right bank (facing downstream) of the Snake River about three miles below Ice Harbor Dam near Burbank, WA.
Marrowstone Marine Field Station
Image of the Western Fisheries Research Center, Marrowstone Marine Field Station. Looking east toward Puget Sound.
Image of the Western Fisheries Research Center, Marrowstone Marine Field Station. Looking east toward Puget Sound.
Trawling for Delta Smelt aboard the USGS Research Vessel Sentinel
Trawling for Delta Smelt using a Kodiak Trawl in the Sacramento River aboard the USGS Research Vessel Sentinel.
Trawling for Delta Smelt using a Kodiak Trawl in the Sacramento River aboard the USGS Research Vessel Sentinel.
Scouting field sites, by raft, on the White Salmon River, WA
Pat Connolly (USGS-CRRL), Greg Morris (Yakama Nation), and Jeff Spencer (Yakama Nation) on a scouting and field planning trip on the White Salmon River, WA. Personnel were planning for studies of resident rainbow trout in the White Salmon River prior to removal of Condit Dam, which was breached in 2011.
Pat Connolly (USGS-CRRL), Greg Morris (Yakama Nation), and Jeff Spencer (Yakama Nation) on a scouting and field planning trip on the White Salmon River, WA. Personnel were planning for studies of resident rainbow trout in the White Salmon River prior to removal of Condit Dam, which was breached in 2011.
Corbicula sampling in the Bonneville Pool, Columbia River
Corbicula sampling in the Bonneville Pool, Columbia River.
Corbicula sampling in the Bonneville Pool, Columbia River.