Graduate student Daniel Hernandez, from the University of Washington School of Aquatic and Fishery Sciences, measures virus for a Chinook salmon infection experiment in the WFRC wet lab. Doug McKenney, USGS volunteer is assisting.
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Graduate student Daniel Hernandez, from the University of Washington School of Aquatic and Fishery Sciences, measures virus for a Chinook salmon infection experiment in the WFRC wet lab. Doug McKenney, USGS volunteer is assisting.
![Measuring virus for a Chinook salmon infection experiment](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/HSLResearchHomepage.jpg?itok=HeWtSHe2)
Graduate student Daniel Hernandez, measures virus for a Chinook salmon infection experiment in the WFRC wetlab.
Graduate student Daniel Hernandez, measures virus for a Chinook salmon infection experiment in the WFRC wetlab.
![Suspended sediment sampling bottles from Elwha River sampling](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Elwha%20River%20suspended%20sediment%20bottles%20USGS%20Jeff%20Duda.jpg?itok=nqoanXcq)
Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012.
Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012.
Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012. Graphical overlay is the measured suspended sediment concentration in each sample bottle, showing the variability in sediment concentration during the time period shown.
Series of daily sample bottles containing integrated water samples from the Elwha River, October 17, 2012 to November 9, 2012. Graphical overlay is the measured suspended sediment concentration in each sample bottle, showing the variability in sediment concentration during the time period shown.
![Antennas deployed in the Wind River to monitor movements of fish.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/CRRLAUHomepage.jpg?itok=9EpvH6Hn)
Antennas deployed in the Wind River to monitor movements of fish that have been tagged with Passive Integrated Transponder (PIT) tags. The need to track fish movements in large streams over extensive areas has extended this current technology to new levels.
Antennas deployed in the Wind River to monitor movements of fish that have been tagged with Passive Integrated Transponder (PIT) tags. The need to track fish movements in large streams over extensive areas has extended this current technology to new levels.
Aerial photograph of the mouth of the Elwha River where it meets the Strait of Juan de Fuca during the removal of the Elwha and Glines Canyon dams, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Aerial photograph of the mouth of the Elwha River where it meets the Strait of Juan de Fuca during the removal of the Elwha and Glines Canyon dams, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
![Elwha River flowing through former Aldwell reservoir](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Former%20Lake%20Aldwell%2026Sep13%20USGS%20Jeff%20Duda.jpg?itok=jhEHlMwS)
Aerial photograph of the former Lake Aldwell reservoir and the Elwha River 16 months following the removal of the Elwha Dam, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Aerial photograph of the former Lake Aldwell reservoir and the Elwha River 16 months following the removal of the Elwha Dam, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
![Former Mills reservoir during dam removal on the Elwha River](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Former%20Lake%20Mills%2026Sep13%20USGS%20Jeff%20Duda.jpg?itok=6Kk3KSYS)
Aerial photograph of the former Lake Aldwell reservoir and the Elwha River 16 months following the removal of the Elwha Dam, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Aerial photograph of the former Lake Aldwell reservoir and the Elwha River 16 months following the removal of the Elwha Dam, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Aerial photograph showing the mouth of the Elwha River, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Aerial photograph showing the mouth of the Elwha River, Washington State, USA. Aerial assistance by LightHawk and plane piloted by Dr. Hunter Handsfield.
Pale gills of a herring with VEN (top) compared to those of an uninfected, healthy herring (bottom).
Pale gills of a herring with VEN (top) compared to those of an uninfected, healthy herring (bottom).
Juvenile Steelhead to be tagged with a Passive Integrated Transponder tag for life-history research in the Wind River, WA.
Juvenile Steelhead to be tagged with a Passive Integrated Transponder tag for life-history research in the Wind River, WA.
USGS scientists, Steve Rubin and Karl Stenberg, collecting samples to determine the distribution of benthic invertebrates in the Skagit River delta during an extreme low-tide. Information on the distribution and abundance of invertebrates will help resource managers better understand how fish, such as Chinook salmon use the delta.
USGS scientists, Steve Rubin and Karl Stenberg, collecting samples to determine the distribution of benthic invertebrates in the Skagit River delta during an extreme low-tide. Information on the distribution and abundance of invertebrates will help resource managers better understand how fish, such as Chinook salmon use the delta.
![Sample bottles from pump sampler on the Elwha River](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Elwha%20ISCO%20water%20sampler%201Feb13%20USGS%20Jeff%20Duda.jpg?itok=tLVGW7qB)
Sample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.
Sample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.
![Trap net set to capture White River Spinedace](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/South%20Flag%20Upstream%20-%20Summer%20Burdick%20CRRL.jpg?itok=zG_F4xvN)
Trap net set to capture White River Spinedace in the south fork of Flag Spring in Wayne E. Kirch Wildlife Management Area in southeast Nevada
linkUSGS is working with the Nevada Department of Wildlife and the U.S. Fish and Wildlife Service to capture White River Spinedace with trap nets in the Flag Springs complex as part of a mark-recapture study. The goals of this study are to estimate seasonal survival and examine seasonal movements indicative of spawning activity for this rare species.
Trap net set to capture White River Spinedace in the south fork of Flag Spring in Wayne E. Kirch Wildlife Management Area in southeast Nevada
linkUSGS is working with the Nevada Department of Wildlife and the U.S. Fish and Wildlife Service to capture White River Spinedace with trap nets in the Flag Springs complex as part of a mark-recapture study. The goals of this study are to estimate seasonal survival and examine seasonal movements indicative of spawning activity for this rare species.
Southwestern Willow Flycatcher habitat along the Upper Gila River, Arizona.
Southwestern Willow Flycatcher habitat along the Upper Gila River, Arizona.
Dendronotid nudibranch on hydroids - Scuba divers from the U.S. Geological Survey’s Western Fisheries Research Center, Washington Sea Grant, EPA and the Lower Elwha Klallam Tribe collected data and images from a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.
Dendronotid nudibranch on hydroids - Scuba divers from the U.S. Geological Survey’s Western Fisheries Research Center, Washington Sea Grant, EPA and the Lower Elwha Klallam Tribe collected data and images from a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.
![Beam trawling on Lower Granite Reservoir](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/CRRL%20SRFCSR%20-%20BeamTrawlingLGraniteResSnakeR.jpg?itok=l0B_QQOW)
Beam trawling in Lower Granite Reservoir on the Snake River.
Beam trawling in Lower Granite Reservoir on the Snake River.
Roza Dam, on the Yakima River, in Washington State.
Roza Dam, on the Yakima River, in Washington State.
![View from the sky looking seaward over a river mouth that is dumping large volumes of sediment and creating a delta.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/IMG2467_clip.jpg?itok=pai3EUBf)
The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River were incrementally r
The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River were incrementally r
![View from the sky looking inland at a river mouth that is flowing into open waters heavily laden with sediment in contrast.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/IMG2403_clip.jpg?itok=XZHFYJiu)
The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River are being incrementally r
The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume. This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river. Two large dams on the Elwha River are being incrementally r
Revegetation planting day at former Lake Mills reservoir as Glines Canyon Dam is removed. Image available at Olympic National Park flickr site.
Revegetation planting day at former Lake Mills reservoir as Glines Canyon Dam is removed. Image available at Olympic National Park flickr site.