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Interactions of cattle and chinook salmon

Creator:: Ballard, Teena M.
Abstract:: Spring chinook salmon spawning occurs in late summer when it is common for cattle to be present in pastures that have streams where fish spawning occurs. This two-year study addressed three main objectives relative to behavioral interactions between cattle and spring chinook salmon during the spawning life history stage. These...
Resource Type:: Masters Thesis
Full Text:: study area was a 41 hectare riparian pasture along an Eastern Oregon stream with cattle stocked at a

The agronomic, environmental, and economic implications of the introduction of terbacil for weed control in Oregon commercial peppermint operations

Creator:: Harris, James O.
Abstract:: The use of terbacil for weed control was adapted by a high percentage of Oregon peppermint growers soon after its introduction in 1967. To help clarify some of the implications of terbacil usage, three studies were undertaken to collect information concerning (a) the movement and build-up of terbacil in various...
Resource Type:: Masters Thesis
Full Text:: The agronomic, environmental, and economic implications

An analysis of two adjacent agricultural watersheds in west central Oregon

Creator:: Schoeneberger, Philip James
Abstract:: Two small adjacent watersheds on the west-central edge of the Willamette Valley of western Oregon were studied. Information was gathered on existing conditions to determine the suitability of the two watersheds for a paired-watershed study design. A soil survey was conducted using slightly modified soil series previously established for the...
Resource Type:: Masters Thesis
Full Text:: west central Oregon AN ABSTRACT OF THE THESIS OF Philip James Schoeneberger for the degree of

A biogeochemical study of manganese in the estuarine zone

Creator:: Flegal, Arthur Russell
Resource Type:: Dissertation
Full Text:: invertebrate fecal pellets of the Alsea River, Oregon, and 3) Phase transformations of manganese under

The effects of environmental contaminants on the value of outdoor recreation : mercury and pheasant hunting in Oregon

Creator:: Shulstad, Robert N.
Resource Type:: Dissertation
Full Text:: environmental threat and telling of the harmful effects it could inflict. Final results of the Oregon

Nitrate leaching and model evaluation under winter cover crops

Creator:: Minshew, Hudson F.
Resource Type:: Masters Thesis
Full Text:: leaching periods in winter. Four winter cover crops were grown in western Oregon during a 5-yr field

The accumulation of cadmium, copper and nickel in freshwater mussels (Margaritifera margaritifera), algae (Cladophora sp.), and sediment from Elk Creek, Oregon

Creator:: Sigismondi, Linda A.
Abstract:: Concern about heavy metal pollution has increased during the past decade in which studies have shown that heavy metals are accumulating in the environment and that these metals, in excess, are toxic to organisms, including man. Because of this concern, scientists have suggested the use of indigenous organisms as monitors...
Resource Type:: Masters Thesis
Full Text:: freshwater mussels (Margaritifera margaritifera), algae (Cladophora sp.), and sediment from Elk Creek, Oregon

Nitrogen scavenging : using cover crops to reduce nitrate leaching in western Oregon

Creator:: Sattell, Robert, Dick, Richard, Hemphill, Delbert D., Selker, John S., Brandi-Dohrn, Florian M., Minchew, Hudson, Hess, Marlo, Sandeno, Joan, Kaufman, Susan M., and Oregon State University. Extension Service
Abstract:: Declared out of print April 2010. 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
Resource Type:: Technical Report
Full Text:: Western Region USDA-SARE Program Oregon Department of Environmental Quality, EPA, 319 Program Oregon

Fine organic debris and dissolved oxygen in streamed gravels in the Oregon Coast Range

Creator:: Skaugset, Arne E.
Abstract:: Intragravel organic loading and intragravel dissolved oxygen were studied to determine the relationship between timber harvesting adjacent to first-, second-, and third-order streams and intragravel water quality. Twenty watersheds in the central Coast Range of western Oregon were studied of which five were undisturbed, nine were partially harvested, and six...
Resource Type:: Masters Thesis

Feasibility of artificial clam beds

Creator:: Snow, C. Dale and Oregon. Fish Commission. Management and Research Division
Abstract:: What should be done with dredge spoils? "This report discusses two clam beds that were inadvertently established by dredge spoils and suggests the type and magnitude of study I think is needed to determine the feasibility of creating new clam beds with dredge spoils." Includes maps of Yaquina Bay, and...
Resource Type:: Technical Report
Full Text:: and Research Division Fish Commission of Oregon April 19, 1972 INTRODUCTION [4 For many years the

ScholarsArchive@OSU

Interactions of cattle and chinook salmon

The agronomic, environmental, and economic implications of the introduction of terbacil for weed control in Oregon commercial peppermint operations

An analysis of two adjacent agricultural watersheds in west central Oregon

A biogeochemical study of manganese in the estuarine zone

The effects of environmental contaminants on the value of outdoor recreation : mercury and pheasant hunting in Oregon

Nitrate leaching and model evaluation under winter cover crops

The accumulation of cadmium, copper and nickel in freshwater mussels (Margaritifera margaritifera), algae (Cladophora sp.), and sediment from Elk Creek, Oregon

Nitrogen scavenging : using cover crops to reduce nitrate leaching in western Oregon

Fine organic debris and dissolved oxygen in streamed gravels in the Oregon Coast Range

Feasibility of artificial clam beds

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