Index Catalog // ScholarsArchive@OSU

A comparison of porous polymers used in collecting organic volatiles in foods

Creator:: Boyko, Alayne Linda
Abstract:: Porapak Q, Chromosorb 102, and Tenax GC, three porous polymers commonly used as adsorbents in headspace analyses were investigated. The retention times of various low-boiling compounds relative to water were measured on the collection columns to determine which compounds would be lost during the water removal step employed after sampling...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF ALAYNE LINDA BOYKO for the degree

Stability of Biochar Under Storage Conditions and Evaluating its Potential as a Carbon Sequestration Tool in the United States

Creator:: Rovero, Matthew
Abstract:: Biochar has shown promise as a soil amendment for improvement of agricultural and forest productivity, remediation of heavy metals, and sequestration of carbon, but has not yet been adopted for widespread use in any of these applications. By assessing the production potential as a carbon sequestration tool, and the stability...
Resource Type:: Masters Thesis
Full Text:: Rovero, Author CONTRIBUTION OF AUTHORS Dr. Mark G. Johnson contributed to “Effect of

Flavors associated with the use of Cheddar cheese whey powder in ice cream mix

Creator:: Andrews, Matthew V.
Abstract:: Flavor problems associated with the use of cheddar cheese whey in the formulation of ice cream and other food products were investigated. During spray drying of whey, which transforms bulky liquid whey into an easily transportable and storable powder, various degrees of off-flavor development may occur depending on the care...
Resource Type:: Masters Thesis
Full Text:: , and my special friend, Alayne, for their understanding and encouragement. TABLE OF CONTENTS

Bioenergetic evaluation of diel vertical migration by bull trout

Creator:: Eckmann, Madeleine
Abstract:: I evaluated hypotheses related to growth as a driver of depth use and diel vertical migration by bull trout (Salvelinus confluentus) in a thermally stratified reservoir. I applied a bioenergetic model to evaluate growth of bull trout in relation to potential patterns of diel depth use by bull trout in...
Resource Type:: Masters Thesis
Full Text:: -Wert, Ivan Arismendi, Kelly Christiansen and Kathryn Ronnenberg spent hours patiently teaching me

The Behavioral Responses of Western Toad (Anaxyrus boreas) Larvae to Simultaneous Stressors

Creator:: Reynolds, Emily R.
Abstract:: Animals can be naturally exposed simultaneously to multiple stressors. These include habitat changes, contaminants, diseases, invasive species, parasitism, and predation. Exposure to various combinations of biotic and abiotic stressors may induce behavioral changes that affect the way an individual interacts within its environment.Like other groups of organisms, amphibians are exposed...
Resource Type:: Masters Thesis
Full Text:: dendrobatidis. Dis Aquat Organ 68:51–63. Berger L, Marantelli G, Skerratt LF, Speare R (2005b) Virulence of

Basin-scale variation in the spatial pattern of fall movement of juvenile coho salmon in the West Fork Smith River, Oregon

Creator:: Hance, Dalton J.
Abstract:: from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall...
Resource Type:: Masters Thesis
Full Text:: Ronnenberg provided editorial proofing and helped with final figures. This work benefitted from the efforts

Distribution of juvenile salmonids and stream habitat relative to 15-year-old debris-flow deposits in the Oregon Coast Range

Creator:: Kirkby, Kristen-Marie S.
Abstract:: Debris flows, common disturbances in many mountainous areas, initially scour or bury stream habitats; however, debris flows deliver vast amounts of wood, boulders, and gravel that may ultimately form complex stream habitat to potentially support a diverse salmonid assemblage. The materials deposited by debris flows would otherwise be inaccessible to...
Resource Type:: Masters Thesis
Full Text:: to Kathryn Ronnenberg for her figure editing. Many thanks to the Coho Club, in particular Steve

The influence of sex, migration distance, and latitude on expression of anadromy in Oncorhynchus mykiss

Creator:: Ohms, Haley
Abstract:: The evolution and maintenance of multiple phenotypes within populations is an interesting evolutionary and ecological question, and is becoming increasingly important for the restoration and conservation of partially migratory species. In particular, why individuals adopt a particular phenotype has been the focus of numerous research efforts. In the partially migratory...
Resource Type:: Masters Thesis
Full Text:: populations in Chapter 2 and Kathryn Ronnenberg formatted all figures and tables in the manuscript

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:: . Thanks to Kathryn Ronnenberg for the help with figures, tables, and edits. Thanks to my office mate

Habitat structure and occupancy patterns of the montane frog, Rana cascadae, in the Cascade Range, Oregon, at multiple scales : implications for population dynamics in patchy landscapes

Creator:: Brown, Catherine, 1958-
Abstract:: Associations between occupancy patterns of a montane anuran species, Rana cascadae, and habitat structure at multiple scales were examined to investigate how population structure may influence persistence in spatially and temporally heterogeneous environments. Predictions were based on population dynamics suggested by source-sink and metapopulation models. Potential sites in three basins...
Resource Type:: Masters Thesis
Full Text:: thank my field assistants, Kirsten Schumacher, Kathryn Ronnenberg, Ben Greenfield, and Loretta

ScholarsArchive@OSU

A comparison of porous polymers used in collecting organic volatiles in foods

Stability of Biochar Under Storage Conditions and Evaluating its Potential as a Carbon Sequestration Tool in the United States

Flavors associated with the use of Cheddar cheese whey powder in ice cream mix

Bioenergetic evaluation of diel vertical migration by bull trout

The Behavioral Responses of Western Toad (Anaxyrus boreas) Larvae to Simultaneous Stressors

Basin-scale variation in the spatial pattern of fall movement of juvenile coho salmon in the West Fork Smith River, Oregon

Distribution of juvenile salmonids and stream habitat relative to 15-year-old debris-flow deposits in the Oregon Coast Range

The influence of sex, migration distance, and latitude on expression of anadromy in Oncorhynchus mykiss

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

Habitat structure and occupancy patterns of the montane frog, Rana cascadae, in the Cascade Range, Oregon, at multiple scales : implications for population dynamics in patchy landscapes

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