Index Catalog // ScholarsArchive@OSU

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Creator:: Roon, Sean Robert
Abstract:: Wild fish populations are typically infected with a variety of micro- and macroparasites that may affect fitness and survival, however, there is little published information on parasite distribution in wild juvenile salmonids in three upper tributaries of the Willamette River, OR. The objectives of this survey were to document (1)...
Resource Type:: Masters Thesis
Full Text:: Willamette River Tributaries. by Sean Robert Roon A THESIS submitted to Oregon State University

Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95

Creator:: Hinkle, Stephen R., National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.)
Abstract:: The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various natural and anthropogenic factors. Several natural and anthropogenic factors (soil characteristics, cumulative thickness of clay above open interval of...
Resource Type:: Technical Report

A physical inventory of streams in the Upper Willamette Watershed above the confluence of middle and coast forks of Willamette River : 1964

Creator:: Thompson, Kenneth E.
Abstract:: Federal Aid to Fish Restoration Progress Report Project F-69-R-2, Job Number 1
Resource Type:: Technical Report

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Creator:: Sobota, Daniel J.
Abstract:: Land use alters the physical and biological structure of stream ecosystems and potentially alters their capacity to process nitrogen (N), an essential nutrient that has nearly doubled in abundance on the biosphere during the past century from human activities. In this dissertation, I quantified uptake and transformation of nitrate (NO₃⁻)...
Resource Type:: Dissertation
Full Text:: study reaches in the Willamette River basin, Oregon, USA………………………………………………………………..15

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Creator:: Moore, Kathleen M.
Abstract:: Reservoir systems in the western US are managed to serve two main competing purposes: to reduce flooding during the winter and spring, and to provide water supply for multiple uses during the summer. Because the storage capacity of a reservoir cannot be used for both flood damage reduction and water...
Resource Type:: Dissertation
Full Text:: 21 st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995

Creator:: Altman, Bob, Henson, Colleen M., Waite, Ian R., United States. Fish and Wildlife Service, National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.)
Abstract:: This report reviews and summarizes available information on aquatic biological communities in the Willamette Basin through 1995. Specifically, the report describes (1) the distribution, abndance, and trends of three taxonomic groups--algae, macroinvertebrates, and fish--and, to a lesser degree, other selected semi-aquatic taxa (i.e., taxa frequenting but not living wholly in...
Resource Type:: Technical Report

Relationships, communication, and power in Willamette Valley watershed councils : toward building resilient collaborative pathways

Creator:: Myhre, Andrea L.
Abstract:: The purpose of this research is to investigate how stakeholders involved in collaborative watershed groups in Oregon work with each other to form ideas and take action. Most collaboration efforts include encouraging a high level of trust with a great value placed on relationships and partners, being open and flexible,...
Resource Type:: Masters Thesis
Full Text:: stakeholders involved in collaborative watershed groups in Oregon work with each other to form ideas and take

An investigation of alternative means of achieving water quality objectives

Creator:: Kerri, Kenneth Donald
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: . Different levels of water quality and fluctuating flows of the Willamette River in Oregon during the 1963

Benthic algal flora of four rivers of the middle Willamette River Basin

Creator:: Todd, Leona Esther
Abstract:: Fresh-water benthic river algae were collected from selected sites in Willamette River tributaries; two sampling sites were in the Yamhill River system and four sampling sites were in the Santiam River system. Twelve samples were taken at each collection site in the Yamhill River system at approximately monthly intervals from...
Resource Type:: Dissertation
Full Text:: Santiam River (S) and the South Santiam River (SS) occur in the Middle Willamette River Basin (Oregon

A three nest, humanly disturbed Great Blue Heron colony along the Willamette River, Linn County

Creator:: Bayer, Range D., 1947-
Abstract:: There were 21 days with observations during 30 January-21 May 1974. Herons were already displaying on January 30, so nesting activity can occur much earlier than has been supposed. A yearling was often seen at the nests, but most nesting activity was by adults. Although eggs were laid in at...
Resource Type:: Article
Full Text:: 1994 J. Oregon Ornithology No. 3. Willamette River Great

ScholarsArchive@OSU

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95

A physical inventory of streams in the Upper Willamette Watershed above the confluence of middle and coast forks of Willamette River : 1964

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995

Relationships, communication, and power in Willamette Valley watershed councils : toward building resilient collaborative pathways

An investigation of alternative means of achieving water quality objectives

Benthic algal flora of four rivers of the middle Willamette River Basin

A three nest, humanly disturbed Great Blue Heron colony along the Willamette River, Linn County

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