The objective of the Alsea Watershed Study of Integrated Land-Water
Management is to learn how to obtain maximum productivity of a river
basin for the greatest public good. Specific objectives of the investigation
are:
* To determine effects of forestry, mining, industrial, agricultural,
municipal, fishery, game, recreational and other practices...
This report describes the preliminary results of a study to compare effects of clear-cut and staggered logging on fish and other aquatic resources in small headwater streams. The results of this study were published in ODFW Fishery Research Report 9 in 3 parts.
This document contains a result of a study to determine the role of hatchery-reared winter steelhead in steelhead fisheries. The study examines the contribution of these salmon ‘with respect to’ angling intensity, number of fish stocked, contribution of native stocks, and several other factors. It also investigates survival of hatchery-reared...
Mineralogical analysis of 3 upland soil profiles over Tyee parent
rock from the Alsea Basin Area, Oregon showed clear differences
among the 4 soil series represented. Soils from the area of higher
precipitation (over 80 inches, approximately) had no montmorillonite,
lower base saturation and cation exchange capacity, but no lower...
This document summarizes the 1966-67 winter steelhead fisheries on the Alsea and Wilson Rivers, and describes the effects of the three-fish bag limit on total harvest on the Wilson River.
This 1965 meeting was prompted by local requests and in response to flooding and high water from the storms of December, 1964-January, 1965. Local stakeholders voiced their concerns about the river to representatives of the Army Corps of Engineers.
The lower Willamette River, located between river mile 4.0
and 26.5, is the most seriously polluted section of the Willamette
River Basin.
Low dissolved oxygen concentrations of 2.0 to 3.0 mg/1 are
observed annually in this section of the river due to the pollutional
loads discharged into it. Waste discharges...
Tiller Reservoir
In an average year the reservoir is capable of holding
water temperatures in South Umpqua River below 70° F.
for a wide range of regulation schedules. In a year of
maximum temperature, it will also hold temperatures
below 700 F. but flexibility of operation will be restricted.
Regulations...
This report discusses anticipated problems associated with the pollution of the Umpqua River estuary in Oregon. The method of studying these problems by oceanographical techniques is outlined. Proposed studies relating to the Umpqua River Basin are examined.
Oceanographic data collected in the Umpqua River Estuary, Oregon, during the period April 26-27, 1961, are tabulated. Temperature, salinity, velocity, and dissolved oxygen were observed at various depths over one tidal cycle at a mid-channel anchor station located near the mouth of the river.
Oceanographic data collected in the Umpqua River Estuary, Oregon, during the period December 14-15, 1960, are tabulated. Temperature, salinity and velocity were: measured from the surface to the bottom at approximately five-foot intervals at four stations in the estuary. Oxygen samples were collected at depth on four occasions.
Oceanographic data collected in the Umpqua River Estuary, Oregon, during the period January 25-26, 1961, are tabulated. Temperature, salinity, velocity, and oxygen were observed at various depths over one tidal cycle at one station. Temperature and salinity observations were made from the ocean to 11.5 miles upstream upon completion of...
Monthly samples of nutrients, phytoplankton and zooplankton
were taken in the Columbia River estuary over a period of 16 months
in order to determine distribution with season and salinity, and interrelationships
between plankton and nutrients.
Nitrate and phosphate levels in the river water entering the
estuary are high in the...
In situ salinity, turbidity and temperature were measured at discrete depths and water samples for radioanalysis were simultaneously collected in the Columbia River Estuary using a specially designed instrument package. Particulate radioactivity was concentrated by filtration and the dissolved radioactivity by evaporation or ferric oxide bulk precipitation. Radioanalysis was by...
This is a report of an investigation of possible damage to shellfish in the Siuslaw River estuary following the tsunami of March 27, 1964. Investigators did find some damage to clam beds, "However, the damage was not extensive and was limited primarily to the area around runoff channels." Includes map...
The lower Deschutes River of northcentral Oregon has a historically uniform discharge record. Significant reductions in discharge below the seasonal norms will degrade the environment for migratory and resident salmonids by increasing siltation and gravel compaction, and by reducing intragravel water dissolved oxygen content. Fish spawning will be limited by...
Published March 1967. 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
This is a transcript of a meeting between officials of the Army Corps of Engineers and various local stakeholders about a review study of the Yaquina River, and possible improvements the Corps might make to the river. Participants included local officials, representatives of local industries and concerned citizens. Facsimile copies...
This report presents information concerning the water and related land resources of the Middle Willamette River Basin and is the result of a cooperative study by the U. S. Department of Agriculture and the State Water Resources Board of Oregon.
The State Water Resources Board of Oregon is making a...
This report presents information concerning the water and related land resources of the Powder Drainage Basin. Its purpose is (1) to provide information on the past and present uses of water and related land resources; (2) to supply the production data from the use of these resources; (3) to assess...
The increased use of outdoor recreation as a part of the
American way of life has focused attention on the diminishing ratio
of suitable land available to meet the recreational demands. In
Oregon, where the demand is greatest, there is still ample undeveloped
land for recreation use. There exists, therefore...