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Filter Total Items: 183
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Year Published: 2009

Distribution, Health, and Development of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon: 2008 Annual Data Summary

Federally endangered Lost River sucker Deltistes luxatus and shortnose sucker Chasmistes brevirostris were once abundant throughout their range but populations have declined; they have been extirpated from several lakes, and may no longer reproduce in others. Poor recruitment into the adult spawning populations is one of several reasons cited for...

Burdick, Summer M.; Ottinger, Christopher; Brown, Daniel T.; VanderKooi, Scott P.; Robertson, Laura; Iwanowicz, Deborah D.
Distribution, Health, and Development of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon: 2008 Annual Data Summary; 2009; OFR; 2009-1287; Burdick, Summer M.; Ottinger, Christopher; Brown, Daniel T.; VanderKooi, Scott P.; Robertson, Laura; Iwanowicz, Deborah

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Year Published: 2009

Passage and behavior of radio-tagged adult Pacific Lamprey (Entosphenus tridentata) at the Willamette Falls Project, Oregon, 2005-07

We used radio telemetry to monitor passage and describe behavior characteristics of adult Pacific lampreys, Entosphenus tridentata, during their upstream migration at the Willamette Falls Project (Project) on the Willamette River near Portland, Oregon. Our objectives were to document: (1) specific routes of passage at the dam and falls; (2)...

Mesa, Matthew G.; Magie, Robert J.; Copeland, Elizabeth S.
Passage and Behavior of Radio-Tagged Adult Pacific Lamprey (Entosphenus tridentata) at the Willamette Falls Project, Oregon, 2005-07; 2009; OFR; 2009-1223; Mesa, Matthew G.; Magie, Robert J.; Copeland, Elizabeth S.

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Year Published: 2009

Demographics and 2008 Run Timing of Adult Lost River (Deltistes luxatus) and Shortnose (Chasmistes brevirostris) Suckers in Upper Klamath Lake

We used capture-recapture data to assess population dynamics of endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon. The Cormack-Jolly-Seber method was used to estimate apparent survival probabilities, and a temporal symmetry model was used to estimate annual seniority...

Janney, Eric C.; Hayes, Brian S.; Hewitt, David A.; Barry, Patrick M.; Scott, Alta; Koller, Justin; Johnson, Mark; Blackwood, Greta
Demographics and 2008 Run Timing of Adult Lost River (Deltistes luxatus) and Shortnose (Chasmistes brevirostris) Suckers in Upper Klamath Lake; 2009; OFR; 2009-1183; Janney, Eric C.; Hayes, Brian S.; Hewitt, David A.; Barry, Patrick M.; Scott, Alta; Koller, Justin; Johnson, Mark; Blackwood, Greta

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Year Published: 2009

Westport Slough tide gate evaluation

No abstract available 

Haskell, C.A.; Tiffan, K.F.

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Year Published: 2009

Earthquake Hazards and lifelines in the Interstate 5 urban corridor - Woodburn, Oregon, to Centralia, Washington

The Interstate 5 highway (I-5) corridor, which stretches from Mexico to Canada, is both the main economic artery of the Pacific Northwest and home to the majority of Oregonians and Washingtonians. Accordingly, most regional utility and transportation systems have major components located within the I-5 corridor. For the purposes of this map, we...

Barnett, E.A.; Weaver, C.S.; Meagher, K.L.; Haugerud, R.A.; Wang, Z.; Madin, I.P.; Wang, Y.; Wells, R.E.; Blakely, R.J.; Ballantyne, D.B.; Darienzo, M.
Earthquake Hazards and Lifelines in the Interstate 5 Urban Corridor - Woodburn, Oregon, to Centralia, Washington; 2009; SIM; 3027; Barnett, E. A.; Weaver, C. S.; Meagher, K. L.; Haugerud, R. A.; Wang, Z.; Madin, I. P.; Wang, Y.; Wells, R. E.; Blakely, R. J.; Ballantyne, D. B.; Darienzo, M.

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Year Published: 2009

Earthquake hazards and lifelines in the Interstate 5 Urban Corridor - Cottage Grove to Woodburn, Oregon

The Interstate 5 highway (I-5) corridor, which stretches from Mexico to Canada, is both the main economic artery of the Pacific Northwest and home to the majority of Oregonians and Washingtonians. Accordingly, most regional utility and transportation systems have major components located within the I-5 corridor. For the purposes of this map, we...

Barnett, E.A.; Weaver, C.S.; Meagher, K.L.; Haugerud, R.A.; Wang, Z.; Madin, I.P.; Wang, Y.; Wells, R.E.; Blakely, R.J.; Ballantyne, D.B.; Darienzo, M.
Earthquake Hazards and Lifelines in the Interstate 5 Urban Corridor - Cottage Grove to Woodburn, Oregon; 2009; SIM; 3028; Barnett, E. A.; Weaver, C. S.; Meagher, K. L.; Haugerud, R. A.; Wang, Z.; Madin, I. P.; Wang, Y.; Wells, R. E.; Blakely, R. J.; Ballantyne, D. B.; Darienzo, M.

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Year Published: 2009

Minimum Pool and Bull Trout Prey Base Investigations at Beulah Reservoir - Final Report for 2008

Beulah Reservoir in southeastern Oregon provides irrigation water to nearby farms and supports an adfluvial population of threatened bull trout (Salvelinus confluentus). Summer drawdowns in the reservoir could affect forage fish production and overwintering bull trout. To assess the impacts of drawdown, we sampled fish, invertebrates, and water-...

Rose, Brien P.; Mesa, Matthew G.
Minimum Pool and Bull Trout Prey Base Investigations at Beulah Reservoir - Final Report for 2008; 2009; OFR; 2009-1068; Rose, Brien P.; Mesa, Matthew G.

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Year Published: 2009

Physiological development and vulnerability to Ceratomyxa shasta of fall-run Chinook Salmon in the Upper Klamath River Watershed

We evaluated a stock for restoring runs of fall Chinook salmon Oncorhynchus tshawytscha in the Upper Klamath River basin by monitoring its development in Iron Gate Hatchery and in net-pens in the Williamson River and Upper Klamath Lake in Oregon. We transferred age-1 hatchery fall Chinook salmon to net-pens in October 2005 and age-0 fall Chinook...

Maule, Alec G.; Vanderkooi, Scott P.; Hamilton, John B; Stocking , Richard ; Bartholomew, Jerri

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Year Published: 2009

Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon: 2007 Annual Report

Lost River sucker Deltistes luxatus and shortnose sucker Chasmistes brevirostris were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper...

Burdick, Summer M.; VanderKooi, Scott P.; Anderson, Greer O.
Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon: 2007 Annual Report; 2009; OFR; 2009-1043; Burdick, Summer M.; VanderKooi, Scott P.; Anderson, Greer O.

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Year Published: 2009

Bull Trout Forage Investigations in Beulah Reservoir, Oregon - Annual Report for 2006

Beulah Reservoir on the north fork of the Malheur River in northeastern Oregon provides irrigation water to nearby farms and ranches and supports an adfluvial population of bull trout (Salvelinus confluentus), which are listed as threatened under the Endangered Species Act. Water management in Beulah Reservoir results in seasonal and annual...

Rose, Brien P.; Mesa, Mathew G.
Bull Trout Forage Investigations in Beulah Reservoir, Oregon - Annual Report for 2006; 2009; OFR; 2009-1036; Rose, Brien P.; Mesa, Mathew G.

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Year Published: 2009

Patterns of Larval Sucker Emigration from the Sprague and Lower Williamson Rivers of the Upper Klamath Basin, Oregon, Prior to the Removal of Chiloquin Dam - 2006 Annual Report

In 2006, we collected larval Lost River sucker Deltistes luxatus (LRS), shortnose sucker Chasmistes brevirostris (SNS), and Klamath largescale sucker Catostomus snyderi (KLS) emigrating from spawning areas in the Williamson and Sprague Rivers. This work is part of a multi-year effort to characterize the relative abundance, drift timing, and length...

Ellsworth, Craig M.; Tyler, Torrey J.; VanderKooi, Scott P.; Markle, Douglas F.
Patterns of Larval Sucker Emigration from the Sprague and Lower Williamson Rivers of the Upper Klamath Basin, Oregon, Prior to the Removal of Chiloquin Dam - 2006 Annual Report; 2009; OFR; 2009-1027; Ellsworth, Craig M.; Tyler, Torrey J.; VanderKooi, Scott P.; Markle, Douglas F.

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Year Published: 2009

Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon: 2007 Annual Report

In the summer of 2007, we undertook an assessment of larval and juvenile sucker use of Hanks Marsh in Upper Klamath Lake, Oregon. This 1,200-acre marsh on the southeastern shoreline of the lake represents part of the last remaining natural emergent wetland habitat in the lake. Because of the suspected importance of this type of habitat to larval...

Anderson, Greer O.; Wilkens, Alexander X.; Burdick, Summer M.; VanderKooi, Scott P.
Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon: 2007 Annual Report; 2009; OFR; 2009-1014; Anderson, Greer O.; Wilkens, Alexander X.; Burdick, Summer M.; VanderKooi, Scott P.

Filter Total Items: 177
surveying fanno creek
January 4, 2012

Surveying channel change in Fanno Creek, OR

USGS hydrologist surveying channel depth across Fanno Creek, OR

Combined seismic and GPS volcano monitoring station; a fiberglass e...
December 31, 2011

Combined seismic and GPS volcano monitoring station; a fiberglass e...

This combined seismic and GPS volcano monitoring station was installed on the Newberry Volcano in the Deschutes National Forest in 2011. It is a fiberglass enclosure style with external GPS antenna and digital seismometer (buried).

Lava Butte cinder cone rises about 500 feet above its own rough sur...
December 31, 2011

Lava Butte cinder cone rises about 500 feet above its own rough sur...

About 7,000 years ago the lava flow extended west to the Deschutes River, temporarily blocking and permanently diverting the river. The top of Lava Butte is accessible by road during summer months. The Lava Lands Visitor Center of Newberry National Volcanic Monument is located at its base.

Monitoring enclosure at Newberry volcano, Oregon, with internal mon...
August 25, 2011

Monitoring enclosure at Newberry volcano, OR, with internal monitor...

Monitoring enclosure at Newberry volcano, Oregon, with internal monitoring equipment, solar panels, and side-mounted antenna to transmit data.

measuring light in a stream
August 16, 2011

Measuring the light in Minam River, OR

USGS scientist meaures how much light is transmitted into the Wallowa River, near Minam, OR.

Global Positioning System receiver (called a GPS monument) at North...
August 16, 2011

Global Positioning System receiver (called a GPS monument) at North...

Global Positioning System receiver (called a GPS monument) at North Rim Station, a monitoring location at Newberry volcano, Oregon.

August 15, 2011

Kurt Carpenter Interview 2A - Minam River Algae (B-Roll)

Raw interview footage of hydrologist Kurt Carpenter discussing algae in the Minam River near the town of Wallowa, in eastern Oregon. Footage shot in August 2011 as part of the USGS National Water Quality Assessment Program hydrologic benchmark study.

Newberry caldera with Paulina Peak, Big Obsidian Flow and Paulina L...
July 11, 2011

Newberry caldera with Paulina Peak, Big Obsidian Flow and Paulina Lake

View looking south across Newberry caldera towards the Big Obsidian flow (left of center) and Paulina Peak, with Paulina Lake in foreground. Photo taken from the north rim of the caldera.

June 27, 2011

USGS Data Grapher Tutorial - Adjusting Your Graph

This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.

June 27, 2011

USGS Data Grapher Tutorial - Quick Overview

This is a data graphing utility that allows the user to build graphs of data from selected USGS stations.

Ash-flow tuff outcrop, northwest flanks of Newberry Volcano, Oregon...
June 17, 2011

Ash-flow tuff outcrop, NW flanks of Newberry Volcano, OR, was empla...

Larger dark lava bombs were carried in the pyroclastic flow supported within the ashy matrix.

Ash-flow tuff outcrop on the northwest flanks of Newberry Volcano, ...
June 14, 2011

Ash-flow tuff outcrop on the NW flanks of Newberry Volcano, OR, was...

Weathering has eroded the deposit into rounded mounds. Hammer hanging from outcrop in foreground is present for scale.

Filter Total Items: 222
Overview of Klamath Mountains groundwater quality with pie charts showing concentrations of organic and inorganic constituents i
September 5, 2014

Naturally occurring trace elements were detected at high concentrations in less than 3 percent of raw groundwater sources used for public water supply in the Klamath Mountain area, according to the ongoing U.S. Geological Survey study of California groundwater quality.

Issue2.8August2014Thumb
September 2, 2014

Research Underway to Investigate Mortality of Endangered Lost River and Shortnose Suckers in the Upper Klamath Basin

Flyer for May presentation
May 28, 2014

Can better understanding fish diseases help to create much sought-after cures for human diseases such as Hepatitis C?

Lidar image showing the upper parts of the landslide that occurred in northwest Washington on March 22, 2014.
May 14, 2014

Want to know how elevation will benefit your state? The USGS National Geospatial Program is advancing the 3D Elevation Program, known as 3DEP, in response to the growing need for high-quality three-dimensional representations of the Nation’s natural and constructed features.

USGS science for a changing world logo
April 30, 2014

The coastal geology of Simeonof Island, the southeastern-most island in the Shumagin archipelago of the Aleutian Islands, suggests the region has not experienced a great megathrust earthquake in at least the past 3,400 years.

Image: Columbia River Contaminants and Habitat Study
April 29, 2014

A newly published scientific study discovered that some resident fish in the lower Columbia River, namely largescale suckers, contain chemicals that health officials have determined can cause health concerns for people who eat large quantities of the fish.

USGS science for a changing world logo
March 20, 2014

Why does the 1964 Great Alaska Earthquake Matter 50 Years Later? Scientific experts will talk about a half-century of scientific and monitoring advances triggered by the 1964 events.

USGS science for a changing world logo
February 24, 2014

An increase in the barred owl population is contributing to the decline of threatened Northern spotted owls, according to models developed by U.S. Geological Survey and U.S. Forest Service scientists.

Image: Salmon Conservation Efforts Honored
January 16, 2014

Today the Pacific Northwest Aquatic Monitoring Partnership (PNAMP) was recognized for its conservation achievements focused on federally listed salmon species. The partnership was selected for a "Partnership in Conservation" award because it improves the scientific foundation for natural and cultural resource management and advances government-to-government relationship with Indian nations.

USGS science for a changing world logo
January 15, 2014

Twenty years ago this week an earthquake struck Northridge, Calif., killing 57 people and revealing a serious defect in a common type of mid-rise building. A new study by U.S. Geological Survey and Caltech engineers, shows that these mid-rise buildings with fracture-prone welds in their steel frames are much more dangerous than they would be if they met current standards.