Index Catalog // ScholarsArchive@OSU

Coarse woody debris in streams of the Drift Creek Basin, Oregon

Creator:: Veldhuisen, Curt N.
Abstract:: This study examined the occurrence of coarse woody debris (i.e., pieces greater than 0.15 m in diameter and 2.0 m in length) in first- through fifth-order streams located within the Drift Creek Basin of the Oregon Coast Range. Nine "tributary reaches" were surveyed to determine how three land management treatments...
Resource Type:: Masters Thesis

The suspended sediment regimes of two small streams in Oregon's Coast Range

Creator:: Paustian, Steven Julius
Abstract:: The protection of water quality and the maintenance of productive anadromous fisheries is a primary concern in the Pacific Northwest. Excessive suspended sediment loads is a principle water quality problem on small wildland watersheds in this region (Anderson, 1971; Brown, 1972). Man's activities have been shown to increase sedimentation rates...
Resource Type:: Masters Thesis

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Creator:: Vest, Sarah B.
Abstract:: Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and directly impinge on stream channels. Earthflows that move laterally into channels deliver organic and inorganic material to the stream from the earthflow toe. If the amount and particle size of this material is too large to be removed by...
Resource Type:: Masters Thesis
Full Text:: morphology western Cascade Range, Oregon AN ABSTRACT OF THE THESIS OF Sarah B. Vest for the degree of

Riparian vegetation and abundance of woody debris in streams of southwestern Oregon

Creator:: Ursitti, Victoria L.
Abstract:: Riparian vegetation (trees > 10 cm dbh), woody debris (> 10 cm diam, > 1 m long), channel, and landform characteristics were inventoried in mature (80-150 yrs) and old-growth riparian areas (>250 yrs) selected from small tributaries of the Coos and Coquille River basins in southwestern Oregon. Basal area of...
Resource Type:: Masters Thesis
Full Text:: Vegetation and Abundance of Woody Debris in Streams of Southwestern Oregon. Abstract approved: Riparian

A hierarchical stream habitat classification system: development and demonstration

Creator:: Frissell, Christopher A.
Abstract:: Classification of Streams and stream habitats is useful for research involving establishment of monitoring stations, determining local impacts of land use practices, generalization from site-specific data, and assessment of basin-wide, cumulative impacts of human activities on streams and their biota. This thesis presents a framework for a hierarchical classification system,...
Resource Type:: Masters Thesis
Full Text:: High Cascades of Oregon. Habitat organization, trout density, and habitat use were compared in logged

Insect community composition and physico-chemical processes in summer-dry streams of Western Oregon

Creator:: Dieterich, Martin
Abstract:: Seven streams, one of them permanent, were studied in western Oregon, USA. The research was designed to assess the value of summer-dry headwaters for conservation oriented landscape management. Streams were categorized primarily according to exposure (forest versus meadow sites) and secondarily according to flow duration (ephemeral = short-flow versus temporary...
Resource Type:: Dissertation
Full Text:: processes in summer-dry streams of Western Oregon AN ABSTRACT OF THE THESIS OF Martin Dieterich for the

Relationships among in-stream physical habitat, land use, and geology in small coastal streams of northern Oregon

Creator:: Scott, Larissa E.
Abstract:: Salmonid populations in the Pacific Northwest are at historic lows and many populations continue to decline. Previous studies have linked salmonid declines to land use through degradation of in-stream physical habitat, but few of these studies have taken geology into consideration. This study relates habitat parameters known to be important...
Resource Type:: Masters Thesis
Full Text:: Use, and Geology in Small Coastal Streams of Northe Oregon Abstract approved: AN ABSTRACT OF THE

Geomorphic influences on habitat formation, distribution, and development and the classification of upland coastal Oregon streams

Creator:: Hurley, Michael D.
Abstract:: A framework is presented for a more causal explanation and ordering of stream characteristics than traditional means have used. Patterns of stream habitat distribution are related to particular characteristics of the geomorphology of watersheds. Variability in stream characteristics can be explained by the spatial distribution of properties of the watershed...
Resource Type:: Masters Thesis
Full Text:: , and development and the classification of upland coastal Oregon streams AN ABSTRACT OF THE THESIS OF

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Creator:: Campbell, Heidi M. K.
Abstract:: The Environmental Monitoring and Assessment Program (EMAP) site selection protocol was used to generate a random sample of streams throughout the state of Oregon. One hundred and forty-six selected streams were sampled during the summer, low-flow period of 1997. Traditional microbial public health indicators, including heterotrophic plate counts (HPC), total...
Resource Type:: Masters Thesis
Full Text:: the U.S. EPA, Western Ecology Division, Corvallis, Oregon. Upon their receipt, samples were analyzed

Evaluating microbial indicators of environmental condition in Oregon rivers

Creator:: Pennington, Alan Travis
Abstract:: Traditional public health bacterial indicators of water quality and the Biolog® system were evaluated to compare their response to other indicators of stream condition with the state of Oregon and between ecoregions (Coast Range, Willamette Valley, Cascades, and Eastern Oregon). Forty-three randomly selected Oregon rivers were sampled during the summer...
Resource Type:: Masters Thesis
Full Text:: : Evaluating Microbial Indicators of Environmental Condition in Oregon Rivers. Abstract approved:. Anna K

ScholarsArchive@OSU

Coarse woody debris in streams of the Drift Creek Basin, Oregon

The suspended sediment regimes of two small streams in Oregon's Coast Range

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Riparian vegetation and abundance of woody debris in streams of southwestern Oregon

A hierarchical stream habitat classification system: development and demonstration

Insect community composition and physico-chemical processes in summer-dry streams of Western Oregon

Relationships among in-stream physical habitat, land use, and geology in small coastal streams of northern Oregon

Geomorphic influences on habitat formation, distribution, and development and the classification of upland coastal Oregon streams

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Evaluating microbial indicators of environmental condition in Oregon rivers

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