The U.S. Geological Survey (USGS) has worked cooperative with the Unified Sewerage Agency of Washington County (USA) since 1990 to assess water quality in the Tualatin River Basin. The objectives of this study were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of...
The report describes the results of model calibration and validation, and evaluates the extent to which runoff response to timber harvesting and increased road densities in East Fork Lobster Creek Basin can be simulated, using Precipitation-Runoff Modeling System (PRMS), a deterministic, destributed-parameter-modeling system.
Coastal Pacific hake (Merluccius productus) are known
to spawn in the southern California Bight from January
to March, migrate north during late spring and summer
to feed off Oregon, Washington, and British Columbia,
and then move back to southern California in the fall.
Juvenile Pacific hake nursery areas have been...
A trophic model that simulates interactions between
a predatory fish (Pacific hake, Merluccius productus), forage
fish, and juvenile salmon off the Columbia River
was constructed to identify if trophic interactions could
account for marine mortality of Columbia River juvenile
salmon. The model estimates the number of juvenile
salmon that are...
An extensive investigation of the physical, chemical and biological characteristics of Sturgeon Lake was conducted during 1980-82. The information gained was used to identify, document, and diagnose water problems at Sturgeon Lake that may affect its uses and particularly its use by waterfowl. The investigation goal was to analyze the...
The state of the California Current System (CCS)
since spring 2011 has evolved in response to dissipation
of La Niña through spring and summer, resurgence of
cooler La Niña conditions in fall and winter, and finally
a transition towards ENSO-neutral conditions in spring
2012. The resurgence of La Niña was...
Storage of water for water quality control is one of the alternative
means of achieving water quality objectives. Authorities in
the field of water quality management disagree regarding the use of
precious water for the dilution of wastes.
The costs of achieving water quality objectives by treatment
of wastes at...
"Activities included spawning ground and physical stream surveys, sampling of shad and striped bass commercial fisheries, population estimates of juvenile coho in selected streams, evaluating releases of adult and fry coho, studying coho in a lake environment, and investigations on the ecology of fall chinook in south coastal streams." (p.1)
This report describes the activities of the Coastal Rivers Section, including spawning ground surveys, inventory and obstruction surveys, shad and striped bass landing data, lake rearing studies, the physical and chemical characteristics of south coastal streams and various salmonid rearing and ecological studies.
Razor clam catches from Clatsop beaches (Tillamook Head-Columbia River) were sampled regularly from March through September and periodically the rest of the year. Diggers were interviewed for number and age composition of clams harvested and the distribution and number of diggers. Data from beaches south of Tillamook Head were collected...
This report on departmental activities describes "physical stream and lake surveys, spawning fish surveys and individual investigations of particular human activities which might affect the well being of the salmon resource. The advent of federal cooperation has allowed an expansion of activities to include intensive collection of data on streams...
During 1975 and 1976 a sedimentation study was conducted in the Bear Creek watershed, located in the southeastern corner of central Oregon's Crook County. A Rocky Mountain infiltrometer was used to simulate high intensity rainfall over 468 sedimentation plots. Rainfall and runoff were measured and a sample of the runoff...
The work upon which this publication is based was supported by funds provided by the United States Department of the Interior, Office of Water Research and Technology, as authorized under the Water Resources Research Act of 1964 and by the United States Department of Agriculture, Forest Service, Pacific Northwest Forest...
The myeloid-specific transcription factor, CCAAT/enhancer-binding protein epsilon (C/EBPε) is a critical mediator of myelopoiesis. Mutation of this gene is responsible for neutrophil-specific granule deficiency in humans, a condition that confers susceptibility to Staphylococcus aureus infection. We found that C/EBPε-deficient mice are severely affected by infection with S. aureus, and C/EBPε...
Introduction The Willamette River Flow Project The Nature Conservancy (TNC) and the U. S. Army Corps of Engineers (USACE) are collaborating on a project to determine environmental flow requirements for the Willamette River and its tributaries and to design and test alternative flow releases from the dams that can meet...
Published June 1900. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published August 1916. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog