Index Catalog // ScholarsArchive@OSU

Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Creator:: Banks, Janel
Abstract:: This research was designed to broaden the understanding of how timber-harvest affects aquatic macroinvertebrates in perennial and intermittent headwater streams. This study compared emergent and benthic macroinvertebrate assemblages from 20 headwater streams in the central Oregon Coast Range that varied by harvest condition and flow duration. Through comparison of the...
Resource Type:: Masters Thesis
Full Text:: Gerth, Paula Graff, Alan Herlihy, Russell Langshaw, Cassie Melon, Anthony Olegario, Amanda Robillard

Effects of estuarine circulation patterns and stress on the migratory behavior of juvenile salmonids (Oncorhynchus sp.)

Creator:: Truelove, Nathan Kobun
Abstract:: For the first objective of this thesis, we attempt to understand the role of water flow and directionality in determining steelhead (Oncorhynchus mykiss) and spring/summer and fall Chinook (O. tschawytscha) migration patterns within the Columbia River Estuary and plume by integrating recent advances in biotelemetry and environmental observation and forecasting...
Resource Type:: Masters Thesis
Full Text:: transmitters (NTC-3-1 NanoTag®; 0.85 g in air, 149 – 150 megahertz, 2.9 – 3.1 second burst rate, ~11 day

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Creator:: Frady, Charles H.
Abstract:: Recent studies of headwater streams have demonstrated their importance to overall watershed biodiversity, nutrient cycling, and energy flux. However, little attention has been paid to long-term effects of forest harvest on macroinvertebrate communities in headwater streams. This study investigated headwater stream macroinvertebrate communities in the H.J. Andrews Experimental Forest, Oregon,...
Resource Type:: Masters Thesis
Full Text:: . An de rso n WS -7 WS -8 bi om as s (g m -2 d ay -1 ) 0 2 4 6 8 10 WS -1 WS -2 N

Seasonal movement patterns and habitat use of westslope cutthroat trout in two headwater tributary streams of the John Day River

Creator:: Starcevich, Steven J.
Abstract:: Radiotelemetry was used to study the seasonal movements and habitat use of adult westslope cutthroat trout Oncorhynchus clarki lewisi in Roberts Creek and Rail Creek, headwater tributaries of the John Day River, Oregon, from September 2000 to December 2001. The objectives were to (1) describe adult cutthroat trout life history...
Resource Type:: Masters Thesis
Full Text:: Products and Russell Ricco for giving me permission to conduct this study on their land. For statistical

Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

Creator:: Kavanaugh, Maria T.
Abstract:: Previous observations of light levels and phytoplankton abundances along the Oregon coast demonstrated that phytoplankton attenuated light sufficiently to potentially limit the growth of intertidal macrophytes and therefore structure local intertidal communities. Inspired by this observation, in spring 2004, I initiated a study to quantify the direct and indirect benthic...
Resource Type:: Masters Thesis
Full Text:: in the field and in the lab. Many thanks to Heather Leslie, Chris Krenz, Roly Russell, Anne Guerry

Scaling hydrologic impacts from road segments to a small watershed

Creator:: Royer, Timothy Adam
Abstract:: The impact of forest roads on the hydrology of forested watersheds has long been studied. While forest roads have been reported to alter storm runoff at the road segment scale, the potential for changes to be detectable at the small watershed scale has been debated. The purpose of this study...
Resource Type:: Masters Thesis

Do settling mussels (Mytilus spp.) prefer macroalgae over artificial substrates? : a test of collector preference along the Oregon Coast

Creator:: Howieson, John
Abstract:: This study investigated whether a device commonly used to measure settlement of mussel larvae for ecological studies, the Tuffy™, functions uniformly whether placed in a bed of filamentous algae or on bare rock. During the summers of 2004 and 2005, the number of mussel larvae settling on Tuffys in patches...
Resource Type:: Masters Thesis
Full Text:: interact with Heather Leslie, Chris “Sunshine” Krenz, Roly Russell, Anne Guerry, Elise Granek, Laura

Formation and modification of enduracididine, a nonproteinogenic amino acid

Creator:: Tan, Ying
Abstract:: Molecular genetic and enzymological techniques have been employed to study antibiotic biosynthesis. In this thesis, we studied the formation and modification of the nonproteinogenic amino acid enduracididine (End), which exists in two important antibiotics, mannopeptimycins (MPPs) and enduracidin. Sequence analysis of the MPP gene cluster revealed that the product of...
Resource Type:: Masters Thesis
Full Text:: ion electrospray ionization G-BBH γ-butyrobetaine hydroxylase HPG 4-hydroxyphenylglycine IPTG

Asymmetric clustering using a register cache

Creator:: Morrison, Roger Allen
Abstract:: Conventional register files spread porting resources uniformly across all registers. This paper proposes a method called Asymmetric Clustering using a Register Cache (ACRC). ACRC utilizes a fast register cache that concentrates valuable register file ports to the most active registers thereby reducing the total register file area and power consumption....
Resource Type:: Masters Thesis
Full Text:: ), June 2003. 20 [7] G. Hinton et al., “The Microarchitecture of the Pentium 4 Processor,” Intel

Protein secondary structure prediction using conditional random fields and profiles

Creator:: Shen, Rongkun
Abstract:: Protein secondary structure prediction plays a pivotal role in predicting protein folding in three-dimensions. Its task is to assign each residue one of the three secondary structure classes helix, strand, or random coil. This is an instance of the problem of sequential supervised learning in machine learning. This thesis describes...
Resource Type:: Masters Thesis
Full Text:: Fields and Profiles Abstract approved: Thomas G. Dietterich

ScholarsArchive@OSU

Influences of clearcut logging on macroinvertebrates in perennial and intermittent headwaters of the Central Oregon Coast Range

Effects of estuarine circulation patterns and stress on the migratory behavior of juvenile salmonids (Oncorhynchus sp.)

Headwater stream macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon

Seasonal movement patterns and habitat use of westslope cutthroat trout in two headwater tributary streams of the John Day River

Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

Scaling hydrologic impacts from road segments to a small watershed

Do settling mussels (Mytilus spp.) prefer macroalgae over artificial substrates? : a test of collector preference along the Oregon Coast

Formation and modification of enduracididine, a nonproteinogenic amino acid

Asymmetric clustering using a register cache

Protein secondary structure prediction using conditional random fields and profiles

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