Index Catalog // ScholarsArchive@OSU

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:: : _____________________________________________________________ Robert E. Gresswell Radiotelemetry was used to study the seasonal movements and habitat use

Sea surface water motion off Chile latitudes18°S-40°S, revealed from satellite images ofchlorophyll and temperature distribution

Creator:: Espinoza, Felix R.
Abstract:: The mesoscale sea-surface circulation pattern within 400 km off Chile and between 18°S and 40°S latitude is described using chlorophyll and temperature images from the Coastal Zone Color Scanner NIMBUS-7 satellite. The data base is a set of four mosaics developed from band-3 (550 nm) images taken on June 4...
Resource Type:: Masters Thesis
Full Text:: Sea Surface Water Motion off Chile Latitudes 18°S-40°S, Revealed

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Creator:: Aljutaili, Dhari S.
Abstract:: Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Dhari S. Aljutaili for the degree of Master of Science in

Persistence of spatial distribution patterns of coastal cutthroat trout in a Cascade mountain stream

Creator:: Novick, Marc S.
Abstract:: Previous research in South Fork Hinkle Creek suggested that coastal cutthroat trout exhibit an aggregated spatial pattern across multiple spatial scales. To evaluate the persistence of the observed abundance patterns and identify factors that affect those patterns, half-duplex passive integrated transponders (PIT-tags) were implanted in 320 coastal cutthroat trout (>...
Resource Type:: Masters Thesis
Full Text:: Results AN ABSTRACT OF THE THESIS OF Marc S

Submarine plateau volcanism and Cretaceous Ocean Anoxic Event 1a : geochemical evidence from Aptian sedimentary sections

Creator:: Walczak, Paul S.
Abstract:: Marine sediments exceptionally rich in organic carbon, known as black shales, occur globally but intermittently in well correlated Cretaceous successions. The presence of black shales indicates that sporadic, ocean-wide interruption of normal respiration of marine organic matter during oxygen-deficient conditions has occurred. Submarine volcanism on a massive scale, related to...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Robert A. Duncan Marine sediments exceptionally rich in organic carbon, known as

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

Creator:: Silvernail, Ian S.
Abstract:: The role of unusual geologies in plant distribution and form is well-known. Serpentine (ultramafic) soils exert a particularly strong influence on plants, as evidenced by a high level of endemism and the morphological and physiological traits displayed in adaptation to the extraordinary chemistry of these substrates. Adaptation may lead to...
Resource Type:: Masters Thesis
Full Text:: Ian S. Silvernail for the degree of Master of Science in Botany and Plant Pathology presented on

Can growth strata identify individual paleoearthquakes and characterize fold kinematics? A case study from the La Laja fault system, Sierra de Villicum, Argentina

Creator:: Schultz, Emily S.
Abstract:: A large, damaging earthquake in 1944 on a blind thrust fault caused 60 cm of surface rupture on the subsidiary La Laja fault and additional unmeasured growth of an associated backlimb fold. Both the fold and fault are components of the La Laja Fault System (LLFS) located 25 km northeast...
Resource Type:: Masters Thesis
Full Text:: OF Emily S. Schultz for the degree of Master of Science in Geology presented on October 26, 2006

Reproductive isolation and interspecific hybridization in the threatened species, Sidalcea nelsoniana

Creator:: Gisler, Steven D.
Abstract:: In addition to its longstanding recognition as an influential evolutionary process, interspecific hybridization is increasingly regarded as a potential threat to the genetic integrity and survival of rare plant species, manifested through gamete wasting, increased pest and disease pressures, outbreeding depression, competitive exclusion, and genetic assimilation. Alternatively, hybridization has also...
Resource Type:: Masters Thesis
Full Text:: and genus. Results show S. nelsoniana is reproductively isolated from all three of its congeners by a

Assessing the feasibility of policy prescriptions in the Salmon 2100 Project

Creator:: Whitehead, Katharine S.
Abstract:: Wild salmon populations are in decline in the Pacific Northwest. In the region populations and runs of Chinook (Oncorhynchus tshawytsha), Chum (Oncorhynchus keta), Coho (Oncorhynchus kisutch), Sockey (Oncorhynchus nerka), and Steelhead (Oncorhynchus mykiss) have been listed as threatened and/or endangered under the Endangered Species Act (ESA) in the U.S. and/or...
Resource Type:: Capstone Project
Full Text:: AN ABSTRACT OF THE THESIS OF Katharine S. Whitehead for the degree of Master of Public Policy

Ecology of the northern subpopulation of northern anchovy (Engraulis mordax) in the California Current large marine ecosystem

Creator:: Litz, Marisa N. C.
Abstract:: Northern anchovy (Engraulis mordax) are a dominant forage fish in the California Current large marine ecosystem (CCLME). However, little is known about northern anchovy abundance, distribution, age structure, or population fluctuations relative to ocean conditions in the eastern boundary upwelling system off the U.S. West Coast. This thesis includes three...
Resource Type:: Masters Thesis
Full Text:: . CONTRIBUTION OF AUTHORS Drs. Selina S. Heppell, Robert L. Emmett, and Richard D. Brodeur provided valuable

ScholarsArchive@OSU

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

Sea surface water motion off Chile latitudes18°S-40°S, revealed from satellite images ofchlorophyll and temperature distribution

Distortion-induced fatigue cracking of girder-to-crossbeam connection

Persistence of spatial distribution patterns of coastal cutthroat trout in a Cascade mountain stream

Submarine plateau volcanism and Cretaceous Ocean Anoxic Event 1a : geochemical evidence from Aptian sedimentary sections

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

Can growth strata identify individual paleoearthquakes and characterize fold kinematics? A case study from the La Laja fault system, Sierra de Villicum, Argentina

Reproductive isolation and interspecific hybridization in the threatened species, Sidalcea nelsoniana

Assessing the feasibility of policy prescriptions in the Salmon 2100 Project

Ecology of the northern subpopulation of northern anchovy (Engraulis mordax) in the California Current large marine ecosystem

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