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Filter Total Items: 715
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Year Published: 2003

Swimming performance and physiological responses to exhaustive exercise in radio-tagged and untagged Pacific lampreys

Populations of Pacific lamprey Lampetra tridentata have declined in the Columbia River basin. One factor that may have contributed to this reduction in population size is an excessive use of energy by adult lampreys as they negotiate fishways at dams during spawning migrations. To gain an understanding of the performance capacity of Pacific...

Mesa, M.G.; Bayer, J.M.; Seelye, J.G.
Swimming performance and physiological responses to exhaustive exercise in radio-tagged and untagged Pacific lampreys; 2003; Article; Journal; Transactions of the American Fisheries Society; Mesa, M. G.; Bayer, J. M.; Seelye, J. G.

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Year Published: 2003

Three-dimensional fish tracking to evaluate the removable spillway weir at Lower Granite Dam during 2002, Annual report 2002

Abstract not available

Cash, K.M; Hatton, T.W; Jones, E.C.; Magie, R.J.; Mayer, K.C.; Swyers, N.M.; Adams, N.S; Rondorf, D.W.

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Year Published: 2003

Turbine survival and migration behavior of subyearling Chinook salmon at McNary Dam, 2003

Abstract not available 

Perry, R.W.; Fielding, S.D.; Cochran , A.D.; Schei, J.L.; Sprando, J.M.; George , G.T.; Adams, N.S.; Rondorf, D.W.

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Year Published: 2003

Two distinct phylogenetic clades of infectious hematopoietic necrosis virus overlap within the Columbia River basin

Infectious hematopoietic necrosis virus (IHNV), an aquatic rhabdovirus, causes a highly lethal disease of salmonid fish in North America. To evaluate the genetic diversity of IHNV from throughout the Columbia River basin, excluding the Hagerman Valley, Idaho, the sequences of a 303 nt region of the glycoprotein gene (mid-G) of 120 virus isolates...

Garver, K.A.; Troyer, R.M.; Kurath, G.
Two distinct phylogenetic clades of infectious hematopoietic necrosis virus overlap within the Columbia River basin; 2003; Article; Journal; Diseases of Aquatic Organisms; Garver, K. A.; Troyer, R. M.; Kurath, G.

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Year Published: 2003

Using 3D acoustic telemetry to assess the response of resident salmonids to strobe lights in Lake Roosevelt, Washington: Chief Joseph Kokanee Enhancement Feasibility Study, 2001-2002 annual report

In 1995, the Chief Joseph Kokanee Enhancement Project was established to mitigate the loss of anadromous fish due to the construction of Chief Joseph and Grand Coulee dams. The objectives of the Chief Joseph Enhancement Project are to determine the status of resident kokanee (Oncorhynchus nerka) populations above Chief Joseph and Grand Coulee dams...

Perry, R.W.; Farley, M.J.; Hansen, G.S.; Shurtleff, D.J.; Rondorf, D.W.; LeCaire, R.

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Year Published: 2003

Characterization of instream hydraulic and riparian habitat conditions and stream temperatures of the Upper White River Basin, Washington, using multispectral imaging systems

Instream hydraulic and riparian habitat conditions and stream temperatures were characterized for selected stream segments in the Upper White River Basin, Washington. An aerial multispectral imaging system used digital cameras to photograph the stream segments across multiple wavelengths to characterize fish habitat and temperature conditions. All...

Black, Robert W.; Haggland, Alan; Crosby, Greg
Characterization of instream hydraulic and riparian habitat conditions and stream temperatures of the Upper White River Basin, Washington, using multispectral imaging systems; 2003; WRI; 2003-4022; Black, Robert W.; Haggland, Alan; Crosby, Greg

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Year Published: 2003

Concentrations and loads of suspended sediment and nutrients in surface water of the Yakima River basin, Washington, 1999-2000 [electronic resource] : with an analysis of trends in concentrations

Spatial and temporal variations in concentrations and loads of suspended sediment and nutrients in surface water of the Yakima River Basin were assessed using data collected during 1999?2000 as part of the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program. Samples were collected at 34 sites located throughout the...

Ebbert, James C.; Embrey, Sandra S.; Kelley, Janet A.
Concentrations and loads of suspended sediment and nutrients in surface water of the Yakima River basin, Washington, 1999-2000 [electronic resource] : with an analysis of trends in concentrations; 2003; WRI; 2003-4026; Ebbert, James C.; Embrey, Sandra S.; Kelley, Janet A.

Filter Total Items: 858
Scientists kneeling in water, taking samples
April 29, 2013

Collecting Benthic Invertebrates

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.

Maintenance at the September Lobe Monitoring Station at Mount St. H...
April 24, 2013

Maintenance at the Sep. Lobe Monitoring Station at Mount St. Helens.

The September Lobe monitoring station is part of the network of monitoring stations that detects and reports subtle changes in the volcanic vent area. At 2150 m (about 7100 ft) elevation, maintenance is performed during good weather to keep the station fully functional.

February 28, 2013

PubTalk 2/2013 — Is "THE IMPOSSIBLE" Possible in the Pacific Northwest

-- Coastal Community Tsunami Hazards and Risk

By Nathan Wood, Geographer

 

  • The movie "The Impossible", currently showing in theaters, portrays the destruction of the 2004 Indian Ocean tsunami
  • Recent tsunami disasters in the Pacific Ocean testify to their destructive power -- are similar events likely in the
...
Rime ice coats telemetry system at Mount St. Helens....
February 27, 2013

Rime ice coats telemetry system at Mount St. Helens.

To monitor volcanoes, scientists rely on remote monitoring equipment that can operate 24-hours a day and 365-days a year to deliver real-time data. When scientists design and install monitoring stations, they must consider the remoteness of sites, terrain, and winter conditions. Here, rime ice coats a telemetry system that transmits data near Mount St. Helens, Washington

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Sample bottles from pump sampler on the Elwha River
February 1, 2013

Sample bottles from pump sampler on the Elwha River

Sample bottle carousel from automated ISCO pump sampler deployed on the Elwha River, Washington to obtain suspended sediment samples.

Lakes and drainages within the watershed of Mount St. Helens....
January 23, 2013

Lakes and drainages within the watershed of Mount St. Helens.

Lakes and drainages within the watershed of Mount St. Helens.

landscape view of bare rock on distant mountain with forest below in foreground.
December 31, 2012

Headscarp of the Red Bluffs landslide in the Columbia Gorge

View upslope to the headscarp of the Red Bluffs landslide, seen from the surface of the Crescent Lake landslide, in the Columbia Gorge.

Attribution: Natural Hazards
December 31, 2012

Colombia–USA Bi-national Exchange

One of the most tragic volcanic events of the 20th century occurred in Colombia, in 1985, when an eruption of Nevado del Ruiz produced lahars that swept down river valleys and destroyed communities in its path. Over 20,000 people perished. Mount Rainier and other volcanoes of the Pacific Northwest’s Cascade Range are similar to Nevado del Ruiz in many respects—massive

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Mount St. Helens and the industrial waterfront area of North Portla...
December 30, 2012

Mount St. Helens and the industrial waterfront area of North Portla...

Mount St. Helens and the industrial waterfront area of North Portland, Oregon along the Willamette River in the foreground. Excess sediment from volcanoes can significantly impact river traffic.

Logs Floating in Spirit Lake, Mount St. Helens in the background....
November 27, 2012

Logs Floating in Spirit Lake, Mount St. Helens in the background.

Logs float in Spirit Lake near the Spirit Lake gaging station and outflow tunnel. View is to the south with Mount St. Helens in the background.

North Fork Toutle River Above the Sediment Retention Structure, Mou...
November 27, 2012

North Fork Toutle River, Sediment Retention Struct., Mount St. Helens

The May 18, 1980 eruption of Mount St. Helens had a dramatic impact on the North Fork Toutle River. The debris avalanche, lateral blast and ashfall produced a substantial amount of sediment, which continues to be washed into the river and transported downstream. A Sediment Retention Structure was constructed (out of view) to minimize the amount of sediment flowing

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August 25, 2012

L1 West Transect – 2012

Permanent Site: L1 West Transect; Depth: 11.2 Meters (36.6 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This permanent site was only established post dam-removal after it was discovered that the degree of seaweed loss was more extensive than

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Filter Total Items: 353
USGS
February 12, 1997

A special symposium, "Integrating Watershed Ecosystem Studies for Improved Natural Resource Management" will be presented in Seattle, WA, on February 15 as part of the annual meeting of the American Association for the Advancement of Science (AAAS).

USGS
January 3, 1997

The floods have crested and are beginning to recede in most places in the Pacific Northwest. Nevertheless dozens of U.S. Geological Survey personnel, who were busy over the holidays measuring the high streamflows and keeping river stage monitors operating, are still busy in the field and in their offices. Field crews have been hampered by mudslides, road closures, and extremely dangerous condition

USGS
December 12, 1996

An earthquake generated by two tectonic plates sliding past one another in the Pacific Northwest could be as large as magnitude 9, according to scientists with the U.S. Geological Survey.

USGS
September 9, 1996

Measurements of the volume and rate of flows of the flooding Potomac River will be made on the 14th St. Bridge beginning at about 10:30 a.m. Monday (Sept. 9, 1996) by the U.S. Geological Survey. Measuring efforts by the USGS using special cranes and weights will continue for several hours.

USGS
November 30, 1995

Flood waters are peaking and beginning to recede in the Seattle-Tacoma, Washington, area according to streamflow specialists of the U.S. Geological Survey (USGS), a science agency of the Department of the Interior.