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Yaquina River sediment evaluation

Creator:: United States. Army. Corps of Engineers. Portland District
Abstract:: This report describes sediment testing done on the Yaquina River benthos between river miles 6 and 11 (a section between Yaquina and Toledo). The sediments were found to be safe for in-water disposal, thus enabling dredging to proceed.
Resource Type:: Technical Report
Full Text:: substrate at disposal sites in this reach of the river, and is suitable for beach nourishment or

Development of a GIS for the Marys River Watershed for fish and wildlife analysis

Creator:: Callahan, Brady
Abstract:: GIS technology has reached a point where it can be utilized by nonprofessionals in a desktop environment. This paper reviews the implementation of a pilot project for developing a localized-natural resource GIS. The resulting GIS was custom designed to answer questions posed by fish and wildlife biologists who need to...
Resource Type:: Capstone Project
Full Text:: 24 Appendix B 25 Appendix C 26 Appendix D 27 2 Development of a GIS for the Marys River

Issues surrounding the Biota of the Tualatin River Basin

Creator:: Li, Judith L., Gregory, Stanley V., and Oregon State University. Water Resources Research Institute
Abstract:: Tributaries of the Tualatin River cascade down high gradient slopes for relatively short distances, then flow into the low gradient mainstem which meanders for much of its length. The gentle, east-facing slopes of Oregon's Coast Range provide the geomorphic and climatic template for the watershed's patterns of discharge, water quality,...
Resource Type:: Technical Report
Full Text:: terrestrial communities. In the Tualatin River basin, much of the riparian habitat has been fragmented or

Umpqua River smallmouth bass investigation (1987-1988)

Creator:: Daily, Kin, Perkins, Ray, and Johnson, John
Abstract:: This investigation is focused on smallmouth bass in the Umpqua River system. This investigation contains methods of fish sampling used and, later, describes which methods were more effective for specific tasks. It includes population size, density/structure, mortality rates, and age/growth data regarding the smallmouth bass. See also: Umpqua River smallmouth...
Resource Type:: Technical Report
Full Text:: 2?) in the Umpqua River or in the upper 20 miles of the South Umpqua River and upper 13 miles of

Umpqua River smallmouth bass investigation, 1990

Creator:: Daily, Kin and Oregon. Department of Fish and Wildlife
Abstract:: "A study of smallmouth bass in the Umpqua River System was initiated in 1987 and continued in 1988. Results of that work were reported in a progress report. The study was continued in 1990 after a one-year lapse. This report summarizes results of the work conducted in 1990. Objectives of...
Resource Type:: Technical Report
Full Text:: S '1/ 'e.e fj/ UMPUUA RIVER SMALLMOUTH BASS INVESTIGATION

Economic impacts of federal and state river protection in the rural riverside housing market : the Upper Deschutes River, Oregon

Creator:: Grasty, Brent L.
Abstract:: Hedonic Pricing is an effective and versatile method of estimating the relationships between market prices and environmental quality in a world of changing natural resource decisions. One natural resource policy not yet studied using Hedonic Pricing is the protection of free-flowing rivers. As the pressures of development and outdoor recreation...
Resource Type:: Masters Thesis

Ecological functions of off-channel habitat, Willamette River, Oregon : final research plan

Creator:: Andrus, Charles W., Landers, Dixon, Erway, M.L., Sharps, D., and Cline, S.P.
Abstract:: Off-channel features such as alcoves and side channels can have important ecological functions for large rivers such as the Willamette River. Some species and age classes of fish may select these features instead of the main channel to feed, avoid predation by other fish, escape fast water, or seek out...
Resource Type:: Technical Report

Late winter 1992 sampling for water quality in three stream segments of the Tualatin River Basin, Oregon

Creator:: Miner, J. Ronald, Nelson, Peter O., Vedanayagam, Samuel, Oregon State University. Water Resources Research Institute, and Oregon State University. Extension Service
Abstract:: The Tualatin River Basin in Washington County, Oregon has been identified by the Oregon Department of Environmental Quality (DEQ) as "Water Quality Limited." Algal blooms have become commonplace in the lower , reaches of. the river during summer months. Phosphorus has been identified as the nutrient upon which to base...
Resource Type:: Technical Report
Full Text:: . - Segments of the Tualatin River Basin, Orego n Oregon State University Extension Servic e Oregon Water

Historical change in channel form and riparian vegetation of the McKenzie River, Oregon

Creator:: Minear, Paula J.
Abstract:: This study examined channel structure and position and riparian vegetation and land use on the upper 70 km of the McKenzie River, Oregon in the 1940s, compared the 1940s conditions to present conditions, and explored the processes driving change in this system and the implications for aquatic habitat. The hydrologic...
Resource Type:: Masters Thesis

Water quality modeling of the Tualatin River

Creator:: Berger, Christopher J. (Christopher John)
Abstract:: Water quality problems related to excessive algal growth, high nutrient loading, and low flows have been occurring along Oregon's Tualatin River. The Tualatin River is 86 miles long and has a drainage basin of 711 square miles. The drainage basin incorporates forest, agricultural, and urban areas. Located in the Portland...
Resource Type:: Technical Report

ScholarsArchive@OSU

Yaquina River sediment evaluation

Development of a GIS for the Marys River Watershed for fish and wildlife analysis

Issues surrounding the Biota of the Tualatin River Basin

Umpqua River smallmouth bass investigation (1987-1988)

Umpqua River smallmouth bass investigation, 1990

Economic impacts of federal and state river protection in the rural riverside housing market : the Upper Deschutes River, Oregon

Ecological functions of off-channel habitat, Willamette River, Oregon : final research plan

Late winter 1992 sampling for water quality in three stream segments of the Tualatin River Basin, Oregon

Historical change in channel form and riparian vegetation of the McKenzie River, Oregon

Water quality modeling of the Tualatin River

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