Index Catalog // ScholarsArchive@OSU

The short term temporal and spatial variability of nitrogen and phosphorus in two Oregon Coast Range streams

Creator:: Scherer, Robert A.
Abstract:: High intensity sampling was undertaken to characterize the temporal and spatial variability of oxidized nitrogen (NO3-N + NO2-N), ammonia-nitrogen (NH3-N), total dissolved phosphorus, total unfiltered phosphorus and orthophosphorus (PO4-P) from two adjacent small streams in Western Oregon's Coast Range, Deer Creek (303 ha) and Flynn Creek (203 ha). Deer Creek...
Resource Type:: Masters Thesis

Microhabitat associations and behavioral dynamics of co-occurring native Pacifastacus leniusculus and invasive Procambarus clarkii crayfish in Oregon's southern Willamette Valley

Creator:: Hanshew, Brett Alan
Abstract:: Biological invasions are the second largest threat to biodiversity following habitat loss, and studying invasions has been a focus of ecological the past two decades. Despite the intense research, many basic questions remain empirically unanswered, particularly in the realm of behavior. The purpose of this research was to explore the...
Resource Type:: Masters Thesis
Full Text:: field assistance from M. O’Neil. I would also like to thank Drs. S. Gregory, D. Wooster, and L.M

Aquatic insect adaptations to different flow regimes

Creator:: Yamamuro, Asako Melody
Abstract:: My thesis explored the effects of environmental variability on population dynamics and community composition of aquatic insects. Environmental variability in the form of flow regime in streams can limit the distribution and life-history traits of aquatic insects. I used tributaries to the McKenzie River in Oregon with dramatically different flow...
Resource Type:: Dissertation
Full Text:: Blouin, Stanley Gregory, and Gordon Grant have been very supportive of my research and approachable

Relationships between stream discharge and cutthroat trout abundance at multiple scales in managed headwater basins of western Oregon

Creator:: Owens, Hazel L.
Abstract:: Relationships between resident cutthroat trout (Oncorhynchus clarkii clarkii) and six hydrologic indices were investigated using correlation analysis in two experimental headwater catchments in the foothills of the Cascade Mountains of western Oregon. This investigation was to determine if characteristics of discharge explained inter-annual variability in trout abundance. Eight years of...
Resource Type:: Masters Thesis
Full Text:: their time was not trivial and I appreciate every minute of it. Stanley Gregory provided

Migration, movement, and habitat use of humpback whitefish (Coregonus pidschian) in the Copper River Delta, Alaska

Creator:: Neilson, Brian J.
Abstract:: Research conducted on humpback whitefish Coregonus pidschian in the Copper River Delta, Alaska has revealed a complex life history involving seasonal migrations and the occupation of a variety of freshwater and marine habitats including lacustrine, riverine, estuarine, and marine. Forty-five whitefish were tagged with radio transmitters in 2006 and 2007,...
Resource Type:: Masters Thesis
Full Text:: Stan Gregory and Carl Schreck for their support of this project, thoughtful discussion, and

Modeling Fine-scale Avian Distributions and Densities with Multi-scale Models: Predicting the Past and Present

Creator:: Hallman, Tyler A.
Abstract:: Models of a species’ distribution and models of a species’ spatially explicit density are valuable tools for conservation. They allow researchers to estimate changes in distributions, densities, and populations, based on changing environmental conditions. To trust such estimates, however, the quality of models is exceedingly important. Model performance can be...
Resource Type:: Dissertation

A study of stream temperature using distributed temperature sensing fiber optics technology in Big Boulder Creek, a tributary to the Middle Fork John Day River in eastern Oregon

Creator:: Arik, Aida D.
Abstract:: The Middle Fork John Day Basin in Northeastern Oregon is prime habitat for spring Chinook salmon and Steelhead trout. In 2008, a major tributary supporting rearing habitat, Big Boulder Creek, was restored to its historic mid-valley channel along a 1 km stretch of stream 800 m upstream of the mouth....
Resource Type:: Masters Thesis

Analysis of best management practices in the Columbia River Channel Improvement Project (CRCIP)

Creator:: Ridwan, Denni
Abstract:: The Columbia River Channel Improvement Project (CRCIP) was constructed along 166.6 km (103.5 miles) of Columbia River (from River Mile 3 to 106.5), which was from Interstate 5 Bridge (between Portland and Vancouver) to the river mouth, before emptying into the Pacific Ocean. It deepened the river by 0.9 m...
Resource Type:: Masters Thesis

The Design and Construction of a Cost-Effective Atomic Layer Deposition System for Thin Film Growth

Creator:: Hong, Youngjoon
Abstract:: This paper describes the construction and use of a cost-effective custom-built atomic layer deposition (ALD) system, as well as the investigation of aluminum oxide atomic layer deposition using trimethylaluminum and water. For this research, a cost-effective ALD system was constructed for less than $8,000 using existing parts that were given...
Resource Type:: Masters Thesis
Full Text:: providing advice. I would like to thank my committee members Dr. Gregory S. Herman, Dr. Kelsey A

Study of Garnet Type Electrolyte Li₇La₃Zr₂O₁₂ Structure and Electrochemical Performance

Creator:: Wang, Yan
Abstract:: Cubic phase Li₇La₃Zr₂O₁₂ (LLZO) is a promising solid electrolyte for all solid-state lithium-ion battery, due to its reasonable ionic conductivity, stable against metallic Li, wide chemical window, and thermal and chemical stability. The main aim of this thesis is to investigate the influences of different synthesis methods on the structure...
Resource Type:: Masters Thesis
Full Text:: gratitude to my committee members: Dr. Chih- Hung Chang, Dr. Gregory S. Herman, and Dr. Xiulei Ji, for

ScholarsArchive@OSU

The short term temporal and spatial variability of nitrogen and phosphorus in two Oregon Coast Range streams

Microhabitat associations and behavioral dynamics of co-occurring native Pacifastacus leniusculus and invasive Procambarus clarkii crayfish in Oregon's southern Willamette Valley

Aquatic insect adaptations to different flow regimes

Relationships between stream discharge and cutthroat trout abundance at multiple scales in managed headwater basins of western Oregon

Migration, movement, and habitat use of humpback whitefish (Coregonus pidschian) in the Copper River Delta, Alaska

Modeling Fine-scale Avian Distributions and Densities with Multi-scale Models: Predicting the Past and Present

A study of stream temperature using distributed temperature sensing fiber optics technology in Big Boulder Creek, a tributary to the Middle Fork John Day River in eastern Oregon

Analysis of best management practices in the Columbia River Channel Improvement Project (CRCIP)

The Design and Construction of a Cost-Effective Atomic Layer Deposition System for Thin Film Growth

Study of Garnet Type Electrolyte Li₇La₃Zr₂O₁₂ Structure and Electrochemical Performance

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