Researcher measuring sturgeon length. Bottom trawl for young-of-year (YOY) indexing. Columbia River.
Images
Below is a list of available CRRL images.
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Researcher measuring sturgeon length
Researcher measuring sturgeon length. Bottom trawl for young-of-year (YOY) indexing. Columbia River.
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.
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.
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.