Unified Interior Regions

Washington

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Filter Total Items: 716
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Year Published: 2005

Verification of 1921 peak discharge at Skagit River near Concrete, Washington, using 2003 peak-discharge data

The 1921 peak discharge at Skagit River near Concrete, Washington (U.S. Geological Survey streamflow-gaging station 12194000), was verified using peak-discharge data from the flood of October 21, 2003, the largest flood since 1921. This peak discharge is critical to determining other high discharges at the gaging station and to reliably estimating...

Mastin, M.C.; Kresch, D.L.
Verification of 1921 peak discharge at Skagit River near Concrete, Washington, using 2003 peak-discharge data; 2005; SIR; 2005-5029; Mastin, M. C.; Kresch, D. L.

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Year Published: 2005

Diel spawning behavior of chum salmon in the Columbia River

We conducted a study during 2003 in a side channel of the Columbia River downstream of Bonneville Dam to describe the diel spawning behavior of wild chum salmon Oncorhynchus keta. We collected observational data on 14 pairs of chum salmon using a dual-frequency identification sonar. Spawners of both genders were observed chasing intruders during...

Tiffan, K.F.; Rondorf, D.W.; Skalicky, J.J.
Diel spawning behavior of chum salmon in the Columbia River; 2005; Article; Journal; Transactions of the American Fisheries Society; Tiffan, K. F.; Rondorf, D. W.; Skalicky, J. J.

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Year Published: 2005

Effects of temperature on survival and development of early life stage Pacific and western brook lampreys

We examined the effects of temperature (10, 14, 18, and 22??C) on survival and development of Pacific lampreys Lampetra tridentata and western brook lampreys L. richardsoni during embryological and early larval stages. The temperature for zero development was estimated for each species, and the response to temperature was measured as the...

Meeuwig, M.H.; Bayer, J.M.; Seelye, J.G.
Effects of temperature on survival and development of early life stage Pacific and western brook lampreys; 2005; Article; Journal; Transactions of the American Fisheries Society; Meeuwig, M. H.; Bayer, J. M.; Seelye, J. G.

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Year Published: 2005

Evaluation of a prototype surface flow bypass for juvenile salmon and steelhead at the powerhouse of Lower Granite Dam, Snake River, Washington, 1996-2000

A surface flow bypass takes advantage of the natural surface orientation of most juvenile salmon Oncorhynchus spp. and steelhead O. mykiss by providing a route in the upper water column that downstream migrant fishes can use to pass a hydroelectric dam safely. A prototype structure, called the surface bypass and collector (SBC), was retrofitted on...

Johnson, G.E.; Anglea, S.M.; Adams, N.S.; Wik, T.O.
Evaluation of a prototype surface flow bypass for juvenile salmon and steelhead at the powerhouse of Lower Granite Dam, Snake River, Washington, 1996-2000; 2005; Article; Journal; North American Journal of Fisheries Management; Johnson, G. E.; Anglea, S. M.; Adams, N. S.; Wik, T. O.

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Year Published: 2005

Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the Columbia River

This study sought to determine whether wild white sturgeon from the Columbia River (Oregon) were exhibiting signs of reproductive endocrine disruption. Fish were sampled in the free-flowing portion of the river (where the population is experiencing reproductive success) and from three reservoirs behind hydroelectric dams (where fish have reduced...

Feist, G.W.; Webb, M.A.H.; Gundersen, D.T.; Foster, E.P.; Schreck, C.B.; Maule, A.G.; Fitzpatrick, M.S.
Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the Columbia River; 2005; Article; Journal; Environmental Health Perspectives; Feist, G. W.; Webb, M. A. H.; Gundersen, D. T.; Foster, E. P.; Schreck, C. B.; Maule, A. G.; Fitzpatrick, M. S.

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Year Published: 2005

Hydrologic changes in urban streams and their ecological significance

Urban development modifies the production and delivery of runoff to streams and the resulting rate, volume, and timing of streamflow. Given that streamflow demonstrably influences the structure and composition of lotic communities, we have identified four hydrologic changes resulting from urban development that are potentially significant to...

Konrad, C.P.; Booth, D.B.
Hydrologic changes in urban streams and their ecological significance; 2005; Article; Journal; American Fisheries Society Symposium; Konrad, C. P.; Booth, D. B.

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Year Published: 2005

Ichthyophonus in Puget Sound rockfish from the San Juan Islands archipelago and Puget Sound, Washington, USA

In vitro explant cultures identified Ichthyophonus in 10.9% of 302 Puget Sound rockfish Sebastes emphaeus sampled from five sites in the San Juan Islands archipelago and Puget Sound, Washington, in 2003. None of the infected fish exhibited visible lesions and only a single fish was histologically positive. Significantly more females were infected...

Halos, D.; Hart, S.A.; Hershberger, P.; Kocan, R.
Ichthyophonus in Puget Sound rockfish from the San Juan Islands archipelago and Puget Sound, Washington, USA; 2005; Article; Journal; Journal of Aquatic Animal Health; Halos, D.; Hart, S. A.; Hershberger, P.; Kocan, R.

Filter Total Items: 859
July 21, 2014

4SP1 West Transect – 2014

Permanent Site: 4SP1 - West Transect; Depth: 6.5 Meters (21.2 Feet); Distance from river mouth: 0.8 Kilometers (0.5 Miles) East; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.15257, -123.557376; Site Description: The site has converted from gravel/cobble substrate to sand. Seaweed is completely absent. 
 

July 20, 2014

K1 East Transect – 2014 - YouTube

Permanent Site: K1 East Transect; Depth: 6.6 Meters (21.8 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.13592923,-123.5101581; Site Description: Visibility and surge was bad on this date so video is of poor quality. This is a shallow site. Sediment is a gravel/sand mixture. Seaweed was sparse

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July 19, 2014

L1 East Transect – 2014

Permanent Site: L1 East Transect; Depth: 11.3 Meters (37.1 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.13957527,-123.59359993; Site Description: This transect is medium depth. Substrate is still mainly fine sediment/sand/mud with a few scattered boulders. Seaweed is gone except small reds (

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July 19, 2014

L1 West Transect – 2014

Permanent Site: L1 West Transect; Depth: 11.0 Meters (36.2 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 3 years post-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This transect is medium depth. The first 20 meters contains scattered boulders (0:18 seconds). Where there are no boulders, substrate is still

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Northern spotted owl grabbing a mouse off a branch
July 2, 2014

Spotted Owl

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Northern spotted owl perched on a tree branch
July 2, 2014

Spotted Owl

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Nisqually Delta eelgrass
June 12, 2014

Nisqually Delta eelgrass

Close-up image of Nisqually Delta eelgrass.

A volcano monitoring “spider” deployed by helicopter to the Oso landslide to track ground movement and seismicity
June 4, 2014

A volcano monitoring “spider” deployed to the Oso landslide

A volcano monitoring “spider” was deployed by helicopter to the Oso landslide to track ground movement and seismicity while search-and-rescue operations were ongoing.  The spider was equipped with a seismometer (mounted on the far left leg) to track ground shaking and GPS (a dome-shaped instrument on the upper mast) to track subtle ground movement.  Data was transmitted

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Image: Spider Unit & 2014 Washington Landslide
March 31, 2014

Spider Unit & 2014 Washington Landslide

The photograph shows a spider unit, which is being used to help study the landslide that occurred in northwest Washington on March 22, 2014. Spiders are portable instrumentation packages that contain high-precision GPS units for detecting landslide movement as well as geophones for detecting small vibrations. The spiders can be emplaced by hovering helicopters
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Image: Spider Unit and 2014 Washington Landslide
March 31, 2014

Spider Unit and 2014 Washington Landslide

The photograph shows a spider unit being deployed by helicopter to help study the landslide that occurred in northwest Washington on March 22, 2014. Spiders are portable instrumentation packages that contain high-precision GPS units for detecting landslide movement as well as geophones for detecting small vibrations.
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Filter Total Items: 372
USGS
June 17, 2008

Long-term trends in landscape conditions have significantly reduced sagebrush habitat and populations of greater sage-grouse, according to a new study examining the bird's chances of survival.

USGS
May 10, 2008

B-roll footage documenting the continuous eruption of Mount St. Helens from September 2006 through February 2008 is now available from the U.S. Geological Survey.

USGS
April 16, 2008

The National Earthquake Conference will be held in Seattle from April 22 - 26. Earthquake experts from around the nation will convene to discuss the latest research on earthquakes and the generation of tsunamis. 

USGS
February 21, 2008

VANCOUVER, WA-The U.S. Geological Survey (USGS) reported today that a dome of lava that has been growing continuously in the crater of Mount St. Helens in Washington State for more than three years has stopped. 

USGS science for a changing world logo
December 7, 2007

A "pineapple express" storm system that brought intense rainfall to western Washington on December 2 and 3, 2007, pushed river flows at about 10 sites to new all-time record high flows.  As of 10:00 a.m. today, there are 2 river gaging stations reporting above flood stage set by the National Weather Service (NWS).

USGS
August 23, 2007

The traditional emphasis on dense, fast-growing conifer-dominated forests in the Pacific Northwest raises questions about the health of dozens of animal species that depend on shrubs, herbs and broad-leaf trees, a new analysis by the U.S. Geological Survey (USGS) and Oregon State University suggests.

USGS
August 10, 2007

Scientists have refined calculations of some historic Skagit River floods so that they are slightly lower than previously calculated, but still within the plus-or-minus 15-percent margin of error of previous calculations, according to a report released today by the U.S. Geological Survey (USGS).

USGS
May 1, 2007

Water managers in Idaho and Washington will soon have a new tool available to help manage water supplies that depend on the Spokane Valley-Rathdrum Prairie aquifer. 

USGS
December 18, 2006

Federal, state, and local agencies, Tribes and university scientists today released a research plan to advance scientific understanding of the nearshore areas of Puget Sound. The Puget Sound Nearshore Science Partnership’s plan will support the research goals of the Governor’s broader Puget Sound Partnership’s science plan to guide the restoration of the Sound.

USGS science for a changing world logo
December 18, 2006

Federal, state, and local agencies, Tribes and university scientists today released a research plan to advance scientific understanding of the nearshore areas of Puget Sound. The Puget Sound Nearshore Science Partnership’s plan will support the research goals of the Governor’s broader Puget Sound Partnership’s science plan to guide the restoration of the Sound.

USGS
September 28, 2006

The U.S. Geological Survey (USGS) is releasing a 12 minute video of Mount St. Helens, taken by staff at the USGS Cascades Volcano Observatory (CVO).

USGS science for a changing world logo
September 28, 2006

The U.S. Geological Survey (USGS) is releasing a 12 minute video of Mount St. Helens, taken by staff at the USGS Cascades Volcano Observatory (CVO).