Index Catalog // ScholarsArchive@OSU

Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Creator:: Reed, T. L.
Abstract:: The importance of active-entry drift at a community-scale was evaluated by testing whether the placement of wood in streams affected the abundance of Baetis spp. mayflies in drift. Baetis were chosen because they use drift as a behavioral strategy and are important in salmonid diets. The density of woody debris...
Resource Type:: Masters Thesis
Full Text:: . northwest of Corvallis, Oregon. Oak Creek is a third-order stream with extensive riparian vegetation

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

Creator:: Berry, John David
Abstract:: Previous research has indicated that considerable amounts of finely divided slash accumulate in small mountain streams following timber harvesting. The subsequent biological decomposition of this organic matter can result i.n the reduction of dissolved oxygen (DO) concentration to levels as low as 0.6 ppm. These DO levels are lethal to...
Resource Type:: Masters Thesis

The influence of contemporary forest harvesting on summer stream temperatures in headwater streams of Hinkle Creek, Oregon

Creator:: Kibler, Kelly Maren
Abstract:: Stream temperature is a water quality parameter that directly influences the quality of aquatic habitat, particularly for cold-water species such as Pacific salmonids. Forest harvesting adjacent to a stream can increase the amount of solar radiation the stream receives, which can elevate stream temperatures and impair aquatic habitat. Oregon Forest...
Resource Type:: Masters Thesis
Full Text:: Streams of Hinkle Creek, Oregon. Abstract approved: Arne E. Skaugset Stream temperature

Effects of beaver on streams, streamside habitat, and coho salmon fry populations in two coastal Oregon streams

Creator:: Bruner, Karen L.
Abstract:: The effects of beaver (Castor canadensis) on stream morphology, riparian zones, and coho salmon (Oncorhynchus kisutch) fry in Cape and Cummins Creeks, Oregon, were examined using stream surveys, vegetation transects, and coho salmon fry counts in 1987. The basin around Cape Creek has been extensively logged since the late 1940's....
Resource Type:: Masters Thesis

Bacteria die-off in stream sediments

Creator:: Sherer, Brett Micheal
Abstract:: The purpose of this study was to evaluate the impact sediment has on the survival of bacteria in a typical rangeland stream. This information is an important component in determining a time integrated prediction of bacterial numbers in the stream sediment and overlying water. Bacterial survival in stream is a...
Resource Type:: Masters Thesis
Full Text:: rangeland in Central Oregon. Two sediment samples (clay loam and sandy loam) were collected from Bear Creek

Effects of input and redistribution processes on in-stream wood abundance and arrangement in Lookout Creek, western Cascades Range, Oregon

Creator:: Dreher, David Marshall
Abstract:: This study explored how selected input and redistribution processes affect the amount and arrangement of in-stream wood within the 64 km2 Lookout Creek watershed in the Andrews Forest, western Cascade Range, Oregon. A longitudinal inventory of in-stream wood was conducted over approximately 20 km of stream length in 2nd to...
Resource Type:: Masters Thesis
Full Text:: and redistribution processes on in-stream wood abundance and arrangement in Lookout Creek, western

Summertime water temperature trends in Steamboat Creek Basin, Umpqua National Forest

Creator:: Holaday, Steven A.
Abstract:: The Steamboat Creek basin drains 227 mi² (588 km²) of steep forested terrain into the North Umpqua River of Southwest Oregon, 39 mi (63 km) northeast of Roseburg. Summer base flows for Steamboat Creek average 83 cfs (2.35 m³/sec). Steamboat Creek and its tributaries are considered important to the production...
Resource Type:: Masters Thesis

Recruitment and abundance of large woody debris in an Oregon coastal stream system

Creator:: Long, Barry A.
Abstract:: Research was conducted in the Oregon Coast Range to address the concern that conversion of large diameter old-growth forests to small diameter second-growth forests would lead to reduction of large woody debris in adjacent stream channels. The objective of the study was to quantify spatial trends in large woody debris...
Resource Type:: Masters Thesis

A study of hyporheic characteristics along a longitudinal profile of Lookout Creek, Oregon

Creator:: Ninnemann, Jeffery J.
Abstract:: The primary goal of this research project is to quantitatively measure the temporal scales of hyporheic exchange along a stream network. Our goal is to examine how hyporheic exchange varies with increasing stream size. Many previous studies focus on single stream reaches or on several reaches of similar sized streams,...
Resource Type:: Masters Thesis
Full Text:: Hvoorheic Characteristics Along a Longitudinal Profile of Lookout Creek, Oregon Abstract approved: ~L

A multi-trophic level examination of recreational impacts on a national wild and scenic river

Creator:: Wright, Kristopher Keith
Abstract:: Initially, components of an aquatic food web were examined to study impacts of recreational use on the aquatic ecology of Quartzville Creek, Oregon in 1995 and 1996. Measurements of the food web components consisted of observations of harlequin ducks (Histrionicus histrionicus), visual counts of the larval caddisfly Dicosmoecus gilvipes, benthic...
Resource Type:: Masters Thesis
Full Text:: use on the aquatic ecology of Quartzville Creek, Oregon in 1995 and 1996. Measurements of the food

ScholarsArchive@OSU

Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

The influence of contemporary forest harvesting on summer stream temperatures in headwater streams of Hinkle Creek, Oregon

Effects of beaver on streams, streamside habitat, and coho salmon fry populations in two coastal Oregon streams

Bacteria die-off in stream sediments

Effects of input and redistribution processes on in-stream wood abundance and arrangement in Lookout Creek, western Cascades Range, Oregon

Summertime water temperature trends in Steamboat Creek Basin, Umpqua National Forest

Recruitment and abundance of large woody debris in an Oregon coastal stream system

A study of hyporheic characteristics along a longitudinal profile of Lookout Creek, Oregon

A multi-trophic level examination of recreational impacts on a national wild and scenic river

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