Index Catalog // ScholarsArchive@OSU

Long term albacore (Thunnus alalunga) spatio-temporal association with environmental variability in the Northeastern Pacific

Creator:: Phillips, A. Jason
Abstract:: This study investigated long-term (1961-2008) changes in albacore (Thunnus alalunga) abundance and distribution in relation to local environmental and large-scale climate indices in the Northeastern Pacific using time series and spatial analyses. Prior to the time series analysis, a wavelet analysis was conducted to examine nonrandom patterns of cyclical variability...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF A. Jason Phillips for the degree of Master of Science in Oceanography

Diffuse deformation patterns along the North American plate boundary zone, offshore western United States

Creator:: Chaytor, Jason D.
Abstract:: Plate boundaries are commonly regions of complex, diffuse deformation with the motion across the boundary accommodated by numerous structural systems, rather than being narrow, discrete zones of deformation. One such boundary occurs where the North American plate makes contact with Juan de Fuca, Gorda, and Pacific plates along the west...
Resource Type:: Dissertation
Full Text:: , Western North American Plate Boundary AN ABSTRACT OF THE DISSERTATION OF Jason D. Chaytor for

Remote sensing of radiation stress gradients from optical imagery

Creator:: Killian, Jason R.
Abstract:: Wave-induced circulation is the defining characteristic of the nearshore. Within this region, the constant feedback cycle between incoming waves, wave-generated currents, and the mobile sediment bed is responsible for the evolution of complex patterns in nearshore and beach morphology. Central to our understanding of this system is knowledge of the...
Resource Type:: Masters Thesis
Full Text:: Remote Sensing of Radiation Stress Gradients from Optical Imagery by Jason R. Killian A THESIS

Growth control of a marine diatom by low and limiting levels of nitrate-nitrogen

Creator:: Larsen, David Phillips
Resource Type:: Dissertation
Full Text:: by David Phillips Larsen A THESIS submitted to Oregon State University in partial fulfillment of

A sedimentary and geophysical investigation offshore of Sumatra : subduction zone earthquakes, ground motions, and submarine landslides

Creator:: Patton, Jason R.
Abstract:: Subduction zone earthquake and tsunami hazards affect tens of millions worldwide and the recurrence of these disasters can be evaluated with paleoseismic techniques, because earthquake cycles (and their supercycles) typically span many millennia. In these three chapters, I discuss a suite of analyses I use to evaluate the sedimentary record...
Resource Type:: Dissertation

The distribution and partitioning of dissolved organic matter off the Oregon Coast : a first look

Creator:: Hill, Jon K.
Abstract:: The purpose of this thesis is to provide a first look at the spatial and temporal distributions of dissolved organic material (DOM) off the Oregon coast of North America. While this paper is not a comprehensive examination of these distributions, several patterns are identified as promising candidates for continued research....
Resource Type:: Masters Thesis
Full Text:: Dissolved Organic Matter off the Oregon Coast: A First Look. Abstract approved: Patricia A. Wheeler The

Feeding habits of northern fur seals (Callorhinus ursinus) in the eastern Bering Sea

Creator:: Sinclair, Elizabeth
Abstract:: This study was conducted to determine the composition and size of prey consumed by northern fur seals (Callorhinus ursinus) in the eastern Bering Sea. Eighty three northern fur seals were collected in the summer and fall of 1981, 1982, and 1985 for examination of gastrointestinal contents. A total of 139...
Resource Type:: Masters Thesis
Full Text:: and fall of 1981, 1982, and 1985 for examination of gastrointestinal contents. A total of 139

Reconstructing salinity conditions in Nares Strait (Canadian Archipelago) from stable isotope profiles in bivalve shells

Creator:: Zima, Daniela
Abstract:: Nares Strait is one of three main passages of the Canadian Archipelago that channels freshwater from the Arctic Ocean to the North Atlantic. There are very few observations regarding the role of this region on the present day Arctic freshwater budget, and even less regarding the changes in freshwater fluxes...
Resource Type:: Masters Thesis
Full Text:: . Specimens of Hiatella arctica and Astarte borealis collected at the northernmost station show a strong

A terrestrial organic matter depocenter on a high-energy margin adjacent to a low-sediment-yield river : the Umpqua River margin, Oregon

Creator:: Hastings, Roxanne H.
Abstract:: Small, mountainous river systems have been increasingly studied due to their importance as sources of fluvial sediment and organic matter to the coastal ocean. Thus far, studies of small, mountainous river systems have focused on rivers with very high sediment loads. The well-studied Eel River dispersal system in northern California...
Resource Type:: Masters Thesis
Full Text:: . Hastings for the degree of Master of Science in Oceanography presented on May 12, 2011. Title: A

A seasonal study of sediment reworking by Neotrypaea californiensis in Yaquina Bay, Oregon

Creator:: Fritz, Cara E.
Abstract:: A year-long field study was undertaken to investigate the influence of a number of physical and biological factors, specifically temperature, organic carbon content, and shrimp population dynamics on sediment reworking rates by the ghost shrimp Neotrypaea calforniensis. Because of its role as a structuring agent in estuaries along the West...
Resource Type:: Masters Thesis
Full Text:: . Fritz for the degree of Master of Science in Oceanography presented on Aoril 2, 2002. Title: A

Variability of the upper ocean internal wave field during JASIN

Creator:: DeWitt, Lynn Marie
Resource Type:: Masters Thesis
Full Text:: Upper Ocean Internal Wave e Abstract approved: ( Clvton A. Paulson Temperature was measured at 21

Edge wave response to a modulating incident wave field

Creator:: Lippmann, Thomas Charles
Resource Type:: Dissertation
Full Text:: variations in radiation stress gradients, a2Sa /aaI3. Following Phillips (1977) a general form for the

Remote measurements of waves and currents over complex bathymetry

Creator:: Chickadel, Carmine C. (Carmine Christopher)
Abstract:: Waves are the primary input of energy in the nearshore region, and together with the currents forced through the transfer of momentum that occurs during the wave breaking process they are the principal mechanism for sediment transport in the nearshore. The basic physics of waves and currents are thought to...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________ Robert A. Holman Waves are the primary input of energy in the nearshore region, and

Analysis of meteorological and oceanographic data from Ocean Station Vessel N (30N 140W)

Creator:: Dorman, Clive Edgar
Abstract:: The thesis examines the principal air-sea properties at Ocean Station Vessel N (30N 140W). In a descriptive section, meteorological and oceanographic data for N are analyzed over 20 years (1951-1970) and 7 years (1964-1970), respectively. A rainfall estimate is constructed for the 20 year period. The yearly average rainfall is...
Resource Type:: Dissertation
Full Text:: Phillips (1965). They applied a surface stress to an initially quiet fluid with a uniform density gradient

Small scale temperature structure of the upper ocean

Creator:: Simpson, James J. (James Joseph)
Resource Type:: Dissertation
Full Text:: TEMPERATURE STRUCTURE OF THE UPPER. OCEAN Abstract approved: Clayton A. Paulson Small scale temperature

Estimation of wave phase speed and nearshore bathymetry using video techniques

Creator:: Stockdon, Hilary F.
Resource Type:: Masters Thesis
Full Text:: Speed and Nearshore Bathymetry Using Video Techniques. Abstract Robert A. Holman The beach profile

Foreshore dynamics : swash motions and topographic interactions on natural beaches

Creator:: Holland, K. Todd
Resource Type:: Dissertation
Full Text:: Motions and Topographic Interactions on Natural Beaches Abstract approved: Robert A. Holman The

Observations of velocity and temperature and estimates of momentum and heat fluxes in the internal boundary layer over Arctic leads

Creator:: Andreas, Edgar L.
Resource Type:: Dissertation
Full Text:: Abstract approved: Dr. Clayton A. Paulson The primary purpose of the AIDJEX Lead Experiment (ALEX) of

Inner-shelf circulation off the central Oregon Coast

Creator:: Kirincich, Anthony R.
Abstract:: Inner-shelf circulation and mechanisms of across-shelf transport of water masses were examined using seven years of observations collected by the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) program, a long-term monitoring effort along the central Oregon coast. Since 1998, moored velocity and hydrographic measurements have been obtained during the...
Resource Type:: Dissertation
Full Text:: Circulation off the Central Oregon Coast. Abstract approved: John A. Barth Inner-shelf circulation and

Age progressive volcanism in the Comores Archipelago and northern Madagascar

Creator:: Emerick, Christina M.
Resource Type:: Dissertation
Full Text:: VOLCANISM IN ThE COMORES ARCHIPELAGO AND NORTHERN MADAGASCAR ABS TRACT APPROVED: 41 f R 'i.-J / £A.. CM

Temporal variations in volume and geochemistry of volcanism in the Western Cascades, Oregon

Creator:: Verplanck, Emily Pierce
Resource Type:: Masters Thesis
Full Text:: VOLUME AND GEOCHEMISTRY OF VOLCANISM ABSTRACT APPROVED IN THE WESTERN CASCAD ROBERT A. OREGON Fifty

The effect of river discharge and wind forcing on the Oregon coastal ocean during fall and winter

Creator:: Mazzini, Piero Luigi Fernandes
Abstract:: Freshwater provided from river discharge influences the dynamics and circulation of most continental shelves around the world. It has profound effects on the transport and fate of materials and substances originated from rivers and estuaries, as well as on the ocean biogeochemistry and marine ecosystems. The effect of buoyancy forcing...
Resource Type:: Dissertation
Full Text:: Abstract approved: John A. Barth Freshwater provided from river discharge influences the dynamics and

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

Hydrothermal links between ocean plateau formation and global anoxia at the Cenomanian-Turonian boundary

Creator:: Snow, Laura J.
Abstract:: The Cretaceous was a period of extreme climatic conditions accompanied by major perturbations in ocean-atmosphere biogeochemical cycles. One of the most intriguing features is the sporadic interruption of normal marine pelagic sediment deposition by organic rich sediments deposited during oxygen-deficient conditions (ocean anoxic events OAEs). A current model for the...
Resource Type:: Masters Thesis
Full Text:: Plateau Formation and Global Anoxia at the Cenomanian-Turonian Boundary Abstract approved: Robert A

High-resolution sampling of particulate organic carbon in a coastal upwelling system

Creator:: Holser, Rachel R.
Abstract:: Summertime, wind-driven upwelling off the Oregon coast delivers nutrient rich water to the surface that fuels the autotrophic production of particulate organic carbon (POC). This POC can be transported horizontally by fluid motions and vertically by sinking to the bottom where it can be entrained in the benthic boundary layer...
Resource Type:: Masters Thesis
Full Text:: Sampling of Particulate Organic Carbon in a Coastal Upwelling System. Abstract approved: Miguel

A study of wind, oceanic temperature and hydrography in the upwelling area off Peru

Creator:: Medina, Francisco A.
Abstract:: Observations of sea temperature, wind and hydrography obtained during the three months' period of MAM 77 - CUEA experiment (JOINT-II) along the C-line, near 15°S are described. Wind and temperature observations made during March - May 1977 are compared to demonstrate that a relationship exists. Linear correlation analysis was performed...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF FRANCISCO A. MEDINA for the degree

Size classes, population structure, growth, sex ratio, and size and age at maturity of Chionoecetes tanneri Rathbun (Brachyura:Majidae) off the Oregon coast

Creator:: Tester, Patricia A.
Abstract:: During eleven cruises conducted off the Oregon continental slope from April 1973 to March 1975, approximately 1600 specimens of the majid crab Chionoecetes tanneri Rathbun were collected. A time sequence of size frequency histograms and bivariate plots of allometric measurements were used to determine size classes, population structure, growth and...
Resource Type:: Masters Thesis
Full Text:: Chionoecetes tanneri Rathbun were collected. A time sequence of size frequency histograms and bivariate plots

Distribution of ⁶⁵Zn, ⁵⁴Mn, and ⁵¹Cr in the tissues of the Dungeness crab, Cancer magister Dana

Creator:: Tennant, David A.
Resource Type:: Masters Thesis
Full Text:: a depth of 93 fathoms (Phillips, 1935; Cleaver, 1949; Hipkins, 1947) usually upon a sandy bottom

Design, assessment, and future implications of the Multiple Enzyme Analyzer (MEA), a tool for in-situ monitoring of marine microbial activity

Creator:: Jaeger, Stephanie A.
Abstract:: The microbial loop plays a crucial role in remineralization of organic matter and fuels recycled production in the aquatic environment. The capability of microbes to utilize particular compounds can be examined through their ectoenzyme (found outside the cell) activities using fluorogenic substrate analogs. These catalysts hydrolyze polymers otherwise too large...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Stephanie A. Jaeger for the

Distribution, Abundance, and Settlement of Slope-spawning Flatfish during Early Life Stages in the Eastern Bering Sea

Creator:: Sohn, Dongwha
Abstract:: Changes in environmental conditions in marine ecosystems could directly or indirectly influence distribution, abundance, settlement, and size at settlement of flatfish. Understanding species-specific and age-specific responses to environmental variability is important for managing commercially important flatfish stocks. Slope-spawning flatfish whose offspring rely on extensive drift from the slope (spawning) to...
Resource Type:: Dissertation
Full Text:: . Additionally, I thank Angela Johnson, Sandi Neidetcher, Bobby Ireland, Jason Phillips, Caren Barceló, Morgan

Comparative study of the population dynamics, secondary productivity, and reproductive ecology of the euphausiids Euphausia pacifica and Thysanoessa spinifera in the Oregon upwelling region

Creator:: Gutierrez, Jaime Gomez
Abstract:: I compare the seasonal abundance variation, population dynamics, fecundity, egg hatching mechanism and success, and apostome ciliate parasites of the euphausiids Euphausia pac?fica and Thysanoessa spinfera from the Oregon coast, USA. Community structure and nearshore distributions were examined from bi-weekly oceanographic surveys (1970-1972). This region has a strong cross-shelf change...
Resource Type:: Dissertation
Full Text:: -weekly oceanographic surveys (1970-1972). This region has a strong cross-shelf change in euphausiid

The effects of thermodynamic parameterizations, ice shelf geometry, and tides on modeled basal melting of Weddell Sea ice shelves

Creator:: Mueller, Rachael D.
Abstract:: Antarctic Ice Sheet mass balance and, hence, sea level change is affected by the floating extensions of outlet glaciers and ice streams that take up about 44% of the coastline (Drewry et al., 1982) and are referred to as "ice shelves". Ice sheet mass loss accelerates when these ice shelves...
Resource Type:: Dissertation
Full Text:: basal melt rates that differ by nearly a factor of two. The difference in these two cases is due to

Bispectral and cross-bispectral analysis of wind and currents off the Oregon coast

Creator:: Yao, Neng-chun G., 1934-
Abstract:: Third order spectra computed from the rotary components of winds and currents at the TOTEM buoy site off the Oregon coast provide an insight to the nonlinear, quadratic interactions within and between these vector fields. The topography of bispectra and cross-bispectra as displayed on four tri-frequency planes shows that significant...
Resource Type:: Dissertation
Full Text:: compon- ents over wide ranges of frequencies. A quantitative evaluation of the energy transferred

Nekton remains, diatoms, and holocene upwelling off Peru

Creator:: DeVries, Thomas J.
Abstract:: Partly laminated sediments on the upper continental slope (200-600 m) off central Peru contain a diverse assemblage of fish debris, diatoms, and the remains of a variety of other nektonic, planktic, and benthic organisms. Approximately 97 percent of the fish scales recovered from the best preserved cores come from the...
Resource Type:: Masters Thesis
Full Text:: continental slope (200-600 m) off central Peru contain a diverse assem- blage of fish debris, diatoms, and

Geochemical tracers of Arctic river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Dissertation
Full Text:: organic carbon (DOC) in the Arctic Ocean was achieved by means of a high-resolution, in situ UV

A Bayesian approach to marine spatial planning

Creator:: Erhardt, Morgan William
Abstract:: The marine ecosystem provides a broad spectrum of services for a wide array of user groups. Such broad use of marine resources often results in use conflicts between ecosystem elements and human interests. To help mitigate these conflicts, the Bayesian Analysis for Spatial Siting (BASS) tool was developed to incorporate...
Resource Type:: Masters Thesis
Full Text:: presented on July 29, 2013. Title: A Bayesian Approach to Marine Spatial Planning Abstract approved

Understanding the anodic mechanism of a seafloor fuel cell

Creator:: Ryckelynck, Natacha
Abstract:: Anoxic sediment overlain by oxic seawater establishes a voltage gradient on the order of 0.7-0.8V across the sediment-water interface. This study follows Reimers et al. (2001) and Tender et al. (2002) who reported the development of a seafloor fuel cell to harvest electrical energy from this potential difference. Prototype fuel...
Resource Type:: Masters Thesis
Full Text:: Mechanism of a Seafloor Fuel Cell Abstract approved: Clare E. Reimers. Anoxic sediment overlain by oxic

Breaking waves : a review of theory and measurements

Creator:: Gaughan, Michael Kenneth
Abstract:: Theoretical breaking criteria for progressive surface gravity waves are examined, and laboratory and field experiments concerned with breaking waves are reviewed with respect to the testing of these breaking criteria. The measurements of Komar and Simmons are presented here for the first time. Only three theoretical breaking criteria have been...
Resource Type:: Masters Thesis
Full Text:: : BREAKING WAVES: A REVIEW OF THEORY AND MEASUREMENTS Abstract approved: Theoretical breaking criteria for

A model of seawater structure near the west coast of Vancouver Island, British Columbia

Creator:: Lane, Robert Kenneth
Resource Type:: Masters Thesis
Full Text:: mass change with time. 4 JASON D -T I I I PO7?! 2 30' z -J AA A A A7', Cu A A STLCE I 2 3 4 5

Water tracing with soluble metal chelates and neutron activation analysis : a laboratory and field study

Creator:: Hanson, Peter James
Abstract:: Research on the application of soluble, metal chelates for water tracing using thermal neutron activation analysis for tracer determination has led to the development of several tracers with promising solution stabilities (conservative behavior) and determination sensitivities. The solution stabilities of the ethylenediamine tetraacetic acid (EDTA) and the diethylenetriamine pentaacetic acid...
Resource Type:: Dissertation
Full Text:: TRACING WITH SOLUBLE METAL CHELATES AND NEUTRON ACTIVATION ANALYSIS: A LABORA- TORY AND FIELD STUDY

Long wavelength gravity anomalies and implications concerning a descending lithospheric slab in the Pacific Northwest

Creator:: MacFarlane, William Thomas
Abstract:: The thermal regime of a postulated descending lithospheric slab is calculated. The gravity anomaly associated with such a structure is large in amplitude and long in wavelengh. Observed free-air gravity anomalies in the Pacific Northwest do not indicate a gravitational effect due to a descending slab. Two hypothetical compensation models...
Resource Type:: Dissertation
Full Text:: Department) t7' (Date) Title: LONG WAVELENGTH GRAVITY ANOMALIES AND IMPLICA- TIONS CONCERNING A DESCENDING

The interaction of an internal tide with the frontal zone in a coastal upwelling region

Creator:: Mooers, C. N. K. (Christopher N. K.)
Resource Type:: Dissertation
Full Text:: ) (Date) Title; THE INTERACTION OF AN INTERNAL TIDE WITH THE FRONTAL ZONE IN A COASTAL TJPWELLING REGION

Assessing physical vulnerability of the coast in light of a changing climate : an integrated, multi-hazard, multi-timescale approach

Creator:: Harris, Erica L.
Abstract:: Hazards threaten coastal communities and ecosystems over a wide range of spatiotemporal scales. One of the most pressing concerns for coastal property owners, decision makers, and researchers is the uncertain role that a changing climate will have on the intensity and frequency of these hazards. The significant uncertainties associated with...
Resource Type:: Masters Thesis
Full Text:: : Assessing Physical Vulnerability of the Coast in Light of a Changing Climate: An Integrated, Multi-hazard

Paleoclimate, paleoventilation, and paleomagnetism as recorded in a 17kyr marine sediment record from the SE Alaska margin

Creator:: Davies, Maureen Helen
Abstract:: The deglacial behavior of the sub-Arctic North Pacific is poorly constrained, with many published records suffering from limited age control due to extensive post- depositional biogenic carbonate dissolution. Potential alternative dating methods could include the correlation of stable-isotopic and/or paleomagnetic secular variation records to an independently-dated regional template, however no...
Resource Type:: Dissertation
Full Text:: Recorded in a 17kyr Marine Sediment Record from the SE Alaska margin Abstract approved

A three component drag probe for the measurement of ocean wave orbital velocities and turbulent water velocity fluctuations

Creator:: Earle, Delph Marshall, 1913-
Abstract:: A three component drag probe has been built, calibrated, and used to measure velocities beneath deep water ocean waves and turbulence in a tidal channel. Simple variable inductance devices which may be submerged in water were used as displacement transducers and the associated electronics provided voltage outputs which were proportional...
Resource Type:: Dissertation
Full Text:: : A THREE COMPONENT DRAG PROBE FOR THE MEASUREMENT OF OCEAN WAVE ORBITAL VELOCITIES AND TURBULENT

Plankton and nutrient ecology of the Columbia River estuary

Creator:: Haertel, Lois Steben
Abstract:: Monthly samples of nutrients, phytoplankton and zooplankton were taken in the Columbia River estuary over a period of 16 months in order to determine distribution with season and salinity, and interrelationships between plankton and nutrients. Nitrate and phosphate levels in the river water entering the estuary are high in the...
Resource Type:: Dissertation
Full Text:: ii I I I I I I I I I I I I I II J FM AM J J A SO ND J FM AM J JASON D J FM AM J J A SO N D J /966

Continuous seismic profiling investigation of the southern Oregon continental shelf between Cape Blanco and Coos Bay

Creator:: Mackay, Angus James
Abstract:: A structure map was constructed of the continental shelf between Cape Blanco and Coos Bay, Oregon, exclusively from an interpretation of approximately 700 km of continuous seismic profiles. At least ten discernible seismic units were mapped on the bases of acoustic appearance, lateral continuity, angular unconformities, and faults. The offshore...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Donald F. Heinrichs A structure map was constructed of the continental shelf be- tween

Sediments and tectonics of the Gorda-Juan de Fuca plate

Creator:: Phipps, James B.
Abstract:: Cores taken from the ridge areas of the Gorda-Juan de Fuca plate have a sedimentation rate that is appropriate for the study of late Quaternary stratigraphy. An analysis of the clay and silt mineralogy of the cores using X-ray diffraction methods and by noting changes in the foraminiferan-radiolarian abundances in...
Resource Type:: Dissertation
Full Text:: the ridge areas of the Gorda-Juan de Fuca plate have a sedimentation rate that is appropriate for the

Tectonic evolution of the Walvis Ridge and West African margin, South Atlantic Ocean

Creator:: Baumgartner, Timothy Robert
Abstract:: The opening of the South Atlantic between 140 and 90 m. y. B. P. occurred about two poles of rotation. The initial pole of rotation was maintained until Africa and South America were completely separated. The subsequent removal of restraints imposed by the pre-existing structure of Africa and South America...
Resource Type:: Masters Thesis
Full Text:: Phillips, 197'2b.. Figure 8 shows a preliminary reinterpretation FIGURE 8: Location of Angola Basin and

An interpretation of the gravity and magnetic anomalies of the Rivera fracture zone, eastern Pacific Ocean

Creator:: Gumma, William Harold
Resource Type:: Masters Thesis
Full Text:: , EASTERN PACIFIC OCEAN Abstract approved: Richard W. Couch Gravity data., collected during a ten day

Space-time scales of temperature variability in the seasonal thermocline of Lake Tahoe

Creator:: Brubaker, John Merrill
Abstract:: Thermal structure in the seasonal thermocline at Lake Tahoe was investigated through the analysis of vertical temperature profiles taken in the upper 70 m during late summer stratification. Different ranges of horizontal and temporal scales were sampled in each of three subsets of finestructure profiles: (1) a three-week sequence at...
Resource Type:: Dissertation
Full Text:: horizontal and temporal scales were sampled in each of three subsets of finestructure profiles: (1) a three

Latitudinal distribution, calf growth and metabolism, and reproductive energetics of gray whales, Eschrichtius robustus

Creator:: Sumich, James L.
Abstract:: Gray whales accomplish an annual migration which spans as much as 50° of latitude in the northeast Pacific Ocean. This migration links their summer high latitude feeding grounds with winter calving and breeding areas. The purpose of this study was to determine how adult females apportion their stored lipid reserves...
Resource Type:: Dissertation
Full Text:: accommodate their own maintenance and locomotory needs while developing a fetus and transferring energy

Development of satellite bloom detection products for coastal Oregon

Creator:: McKibben, S. Morgaine
Abstract:: Two bloom-detection products were developed for the Oregon coast that describe the relative percent change observed between successive pairs of 8-day chlorophyll-a (CHL) and fluorescence line-height (FLH) products obtained from the MODerate Resolution Imaging Spectroradiometer aboard the Aqua spacecraft (MODIS-Aqua). The CHL[subscript dev] and FLH[subscript dev] products, respectively, were optimized...
Resource Type:: Masters Thesis
Full Text:: relative percent change observed between successive pairs of 8-day chlorophyll-a (CHL) and fluorescence

Near-inertial motions off the Oregon coast

Creator:: Anderson, Iain
Abstract:: Nearly three months of current meter records from five moorings off the Oregon coast taken between October 1977 and January 1978 were analyzed for near-inertial motions. The moorings were located from the midshelf out to the foot of the continental slope, spanning the continental margin. All but two of the...
Resource Type:: Masters Thesis
Full Text:: persistence of the near-inertial events (Munk and Phillips, 1968); the average width of 0.007 cph indicates a

Quantifying linear disturbance growth in periodic and aperiodic systems

Creator:: Wolfe, Christopher Lee
Abstract:: The mathematical and physical connections between three different ways of quantifying linear predictability in geophysical fluid systems are studied in a series of analytical and numerical models. Normal modes, as they are traditionally formulated in the instabilities theories of geophysical fluid dynamics, characterize the asymptotic development of disturbances to stationary...
Resource Type:: Dissertation
Full Text:: geophysical fluid systems are studied in a series of analytical and numerical models. Normal modes, as they

Crustal structures and tectonism in southeastern Alaska and western British Columbia from seismic refraction, seismic reflection, gravity, magnetic, and microearthquake measurements

Creator:: Johnson, Stephen Hans
Abstract:: Seismic refraction measurements along two unreversed lines indicate that the earth's crust is 26 km thick in southeastern Alaska and 30 km thick along the Inside Passage of British Columbia. The crust in southeastern Alaska, north of Dixon Entrance, consists of a layer 9 km thick with a seismic velocity...
Resource Type:: Dissertation
Full Text:: southeastern Alaska, north of Dixon Entrance, consists of a layer 9 km thick with a seismic velocity of 5.90

Sedimentation, economic enrichment and evaluation of heavy mineral concentrations on the southern Oregon continental margin

Creator:: Bowman, Kenneth Charles Jr
Abstract:: Heavy minerals can contain potentially economic amounts of metals as both matrix and trace constituents. Such minerals appear as unconsolidated black sands on the continental shelf off southwest Oregon and along the Oregon coast. Two diverse energies are considered in this investigation. Environmental energy of the depositional regimen, Part I;...
Resource Type:: Dissertation
Full Text:: crystalliz3tion of transition metals from a magma, Part III. In Part It, an analytical scheme for the evaluation

Towed electrodes in the sea : theory and use

Creator:: Curtin, T. B. (Thomas B.)
Abstract:: The sea as a dynamic conducting medium interacts continually with the earth' s magnetic field. The physical principles underlying this interaction are reviewed. These results are applied to the particular problem of towed electrodes at the sea surface. Data using this method are then shown to be sensitive to stability...
Resource Type:: Masters Thesis
Full Text:: SEA: THEORY AND USE Abstract approved: Stephen J. /esh' The sea as a dynamic conducting medium

Oogenesis in Mytilus californianus

Creator:: Elvin, David Winter
Abstract:: A two-year field study was made of a population of the California Sea Mussel, Mytilus californianus, located on a protected tidal bench at Yaquina Head on the Central Oregon Coast. This animal was chosen because it is attached to the rocks, filters particulate matter from the water, produces large amounts...
Resource Type:: Dissertation
Full Text:: ) Title: OOGENESIS IN MYTIIJUS CALIFORNIANUS Abstra A two-year field study was made of a population of

The distribution of hyperiid amphipods off the Oregon coast

Creator:: Van Arsdale, Harriet Ann
Abstract:: Hyperiid amphipods from one-meter plankton net collections made over a two year period at stations 15, 25, 50, and 65 nautical miles off Newport, Oregon, were examined. Nineteen species were identified. The occurrence of some species off Oregon significantly extended the known geographic ranges. To my knowledge Scina crassicornis burmudensis...
Resource Type:: Masters Thesis
Full Text:: amphipods from one-meter plankton net collections made over a two year period at stations 15, 25, 50, and

Investigating Plate Boundaries through New High-Resolution Bathymetry and Seismic Data; 2 Case Studies from the Cascadia Subduction Zone and San Andreas Fault

Creator:: Beeson, Jeffrey Watson
Abstract:: Contiential margins on plate boundaries are complex systems with morphologies and characteristics dictated by the interplay of sediment deposition and erosion, tectonic faulting, folding, and strong ground motion generating mass wasting events. With ever increasing advances in high-resolution remote sensing techniques these systems are increasingly becoming illuminated. A ~120 km...
Resource Type:: Dissertation
Full Text:: remote sensing techniques these systems are increas- ingly becoming illuminated. A ~120 km offshore

The time-averaged circulation of the north Pacific Ocean : an analysis based on inverse methods

Creator:: Zaron, Edward D.
Abstract:: The time-averaged velocity field in the North Pacific was estimated in two sets of inverse calculations. The planetary geostrophic equations were the basis for dynamical models of the flow in each case. The inverse estimates of the circulation were obtained by minimizing a positive-definite cost function, which measured the inconsistency...
Resource Type:: Dissertation
Full Text:: . The inverse estimates of the circulation were obtained by minimizing a positive-definite cost

Observations of the coastal upwelling region off Oregon during 1972

Creator:: Huyer, Adriana, 1945-
Abstract:: Observations of wind, currents, sea level and hydrography obtained during the 1972 Coastal Upwelling Experiment (CUE-I) are described. Only phenomena with periods longer than a day are considered. One section describes the changes observed during a period of variable winds in early July 1972. Another describes a ribbon of relatively...
Resource Type:: Dissertation
Full Text:: Experiment (CUE-I) are described. Only phenomena with periods longer than a day are con- sidered. One

Food habits, dietary overlap and gastric evacuation rates of rockfishes (genus Sebastes)

Creator:: Brodeur, Richard D.
Abstract:: Euphausiids constituted the major food of five co-occuring species of rockfishes (Sebastes spp.). Copepods, decapods, cephalopods, amphipods, fishes and other pelagic prey were also consumed but were less important to the overall diet. Two species, S. flavidus and S. diploproa, were relatively euryphagous, utilizing a high number of prey taxa....
Resource Type:: Masters Thesis
Full Text:: , were relatively euryphagous, utilizing a high number of prey taxa. The other species, S. pinniger, S

Above and Below : Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space

Creator:: McKibben, S. Morgaine
Abstract:: Phytoplankton are a sentinel class of organisms in the marine environment. Through their photosynthetic activity in sunlit waters worldwide, phytoplankton shape the health and productivity of marine ecosystems and impact the global climate. In this work a range of ocean sensing technologies (via ships, surf zone sampling, moorings, gliders, and...
Resource Type:: Dissertation
Full Text:: . White Phytoplankton are a sentinel class of organisms in the marine environment. Through their

Sedimentation in small active-margin estuaries of the northwestern United States

Creator:: Peterson, Curt D.
Resource Type:: Dissertation
Full Text:: with a hydrographic parameter HR (mean tidal-prism volume: mean fluvial discharge rate x 6 hours

Utilization of natural and supplemental biofuels for harvesting energy from marine sediments

Creator:: Nielsen, Mark E.
Abstract:: A benthic microbial fuel cell (BMFC) is an electrochemical device that generates current from the redox gradient at the sediment-water interface. Early prototypes had anodes buried in anoxic sediments and cathodes in overlying water. The BMFCs described in this dissertation are based on a chamber design that enables the use...
Resource Type:: Dissertation
Full Text:: Energy from Marine Sediments Abstract approved: Clare E. Reimers A benthic

Stratigraphic correlation of seismoturbidites and the integration of sediment cores with 3.5 kHz chirp subbottom data in southern Cascadia

Creator:: Black, Bran
Abstract:: In order to evaluate the shallow stratigraphy along the southern Cascadia abyssal margin and northern California abyssal plain, CHIRP subbottom profiles capable of imaging individual turbidite beds in the upper tens of meters of the subsurface were collected. Reflectors imaged with the 3.5 kHz CHIRP subbottom data represent turbidite beds...
Resource Type:: Masters Thesis
Full Text:: configuration of many of the turbidite beds identified in nearby cores. A number of thin, low density beds

Methane sources, fluid flow, and diagenesis along the northern Cascadia Margin; using authigenic carbonates and pore waters to link modern fluid flow to the past

Creator:: Joseph, Craig E.
Abstract:: Methane derived authigenic carbonate (MDAC) precipitation occurs within marine sediments as a byproduct of the microbial anaerobic oxidation of methane (AOM). While these carbonates form in chemical and isotopic equilibrium with the fluids from which they precipitate, burial diagenesis and recrystallization can overprint these signals. Plane polarized light (PPL) and...
Resource Type:: Masters Thesis
Full Text:: marine sediments as a byproduct of the microbial anaerobic oxidation of methane (AOM). While these

Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

Creator:: Pierce, Stephen D.
Abstract:: We sharpen our view of an eastern boundary current region during the upwelling season through the analysis of several data sets. We focus on the mesoscale flow field off of northern California, observed during the Coastal Transition Zone (CTZ) experiment of 1988. First, we estimate tidal currents in the region...
Resource Type:: Dissertation
Full Text:: 1988. Referencing geostrophy with the ADCP reveals a stronger equatorward jet than previously reported

Mathematical approaches to the physics of mesoscale oceanography

Creator:: Early, Jeffrey J.
Abstract:: The long-term evolution of Gaussian eddies is studied in an equivalent barotropic model using both linear and nonlinear quasi-geostrophic theory in an attempt to understand westward propagating satellite altimetry tracked mesoscale eddies. By examining both individual eddies and a large basin seeded with eddies, it is shown that long term...
Resource Type:: Dissertation
Full Text:: mesoscale eddies. By examining both individual eddies and a large basin seeded with eddies, it is shown

Bathymetry and structure of San Clemente Island, California, and tectonic implications for the southern California continental borderland

Creator:: Ridlon, James Barr
Abstract:: Five lithologic units, ranging in age from Middle Miocene to Recent, are defined on the basis of continuous seismic reflection profile records. Two of the units are Miocene sedimentary and volcanic rocks that have been truncated to form a major unconformity (post-orogenic surface) related to the most recent major tectonism...
Resource Type:: Dissertation
Full Text:: units are Miocene sedimentary and volcanic rocks that have been truncated to form a major unconformity

Physical hydrography and nutrient nitrogen budget of Auke Bay, Alaska

Creator:: Kirk, Deborah Kathleen
Abstract:: Physical sources of nutrient nitrogen for the Auke Bay, Alaska estuarine ecosystem were investigated. These sources included vertical dispersion, advection, and fresh water sources. Hydrographic circulation patterns for the bay, and a nutrient budget for the surface mixed layer were developed. Measurements of temperature, salinity, currents, wind velocity, rainfall and...
Resource Type:: Masters Thesis
Full Text:: . Hydra- graphic circulation patterns for the bay, and a nutrient budget for the surface mixed layer

Modern and past climate variability in the eastern Pacific warm pool

Creator:: Benway, Heather M.
Abstract:: Westward transport of water vapor across the Panama Isthmus helps to maintain the salinity contrast between the Atlantic and Pacific Oceans, important in thermohaline circulation and global climate. Relatively low sea-surface salinities and a strong, shallow pycnocline in the eastern Pacific warm pool (EPWP) region near Central America reflect high...
Resource Type:: Dissertation
Full Text:: and global climate. Relatively low sea-surface salinities and a strong, shallow pycnocline in the

The resolution capability of single and multiple satellite altimeter missions

Creator:: Greenslade, Diana
Resource Type:: Masters Thesis
Full Text:: Single and Multiple Satellite Altimeter Missions Abstract approved: Dudley Chelton A formalism

The fluvial response to glacial-interglacial climate change in the Pacific Northwest, USA

Creator:: VanLaningham, Sam J.
Abstract:: This research focuses on the development of new techniques to explore terrestrial-ocean climate linkages along the Pacific Northwest-northeast Pacific Ocean margin. This is done by investigating river response to climate change and by unraveling this history preserved in continental margin sediments. A significant component of this work centers on developing...
Resource Type:: Dissertation
Full Text:: A. Duncan Nicklas G. Pisias This research focuses on the

Ecology of Greenland halibut (Reinhardtius hippoglossoides) during the early life stages in the Eastern Bering Sea and Aleutian Islands

Creator:: Sohn, Dongwha
Abstract:: Greenland halibut (Reinhardtius hippoglossoides) have decreased in the eastern Bering Sea and Aleutian Islands since the 1970s. The reasons behind the poor recruitment are unknown, and important knowledge gaps of the ecology of the early life stages have been identified. The objectives of thesis research were (1) to examine geographic...
Resource Type:: Masters Thesis
Full Text:: geographic distributions and drift pathways from egg to settled juveniles (age-1) by a retrospective

Physical and chemical factors controlling the distribution of the major phytoplankton classes at the Antarctic Polar Front, 170 °W

Creator:: Mengelt, Claudia
Abstract:: This study was part of the Antarctic Environment and Southern Ocean Study (AESOPS) program, whose main goal was to investigate the role of the biota in the carbon flux from the atmosphere to the interior of the ocean. We quantified the abundance of the major phytoplankton classes and examined the...
Resource Type:: Masters Thesis
Full Text:: chemical controls of their distribution during a cruise in January/February 1998 near the Antarctic Polar

Numerical methods in the direct interpretation of marine magnetic anomalies

Creator:: Emilia, David Arthur
Resource Type:: Dissertation
Full Text:: values are developed and applied to marine magnetic data. A two-dimensional source body of specified

Development of an autonomous in-situ instrument for long-term monitoring of Cu(II) in the marine environment

Creator:: Holm, Christopher E.
Abstract:: An autonomous, in-situ instrument was developed to detect dissolved copper in seawater, suitable for deployment on time scales from weeks to months. A commercially available in-situ nitrate analyzer (YSI 9600) was adapted to measure copper (II) in seawater by chemiluminescence. Modifications included construction of a photomultiplier (PMT) based detector and...
Resource Type:: Masters Thesis
Full Text:: seawater, suitable for deployment on time scales from weeks to months. A commercially available in-situ

Ecological interrelationships between summer resident gray whales (Eschrichtius robustus) and their prey, mysid shrimp (Holmesimysis sculpta and Neomysis rayi) along the central Oregon coast

Creator:: Newell, Carrie
Abstract:: The ecological interaction between the largest coastal predator, the gray whale (Eschrichtius robustus) and the most abundant shallow water marcrozooplanktonic prey, mysids, were examined in a poorly-understood predator-prey relationship along the central Oregon coast. From 2002-2008, 83 seasonal gray whales were identified. These whales returned each year around Memorial Day...
Resource Type:: Masters Thesis
Full Text:: most abundant shallow water marcrozooplanktonic prey, mysids, were examined in a poorly-understood

Structure of the Panama Basin from marine gravity data

Creator:: Barday, Robert James
Abstract:: In order to quantitatively examine the crustal structure of the Panama Basin without the benefit of local seismic refraction data, the following assumptions were made: (1) No significant lateral changes in density take place below a depth of 50 km. (2) The densities of the crustal layers are those of...
Resource Type:: Masters Thesis
Full Text:: below a depth of 50 km. (2) The densities of the crustal layers are those of a 50-km standard section

Variability in mesoscale circulation and its effects on zooplankton distribution in the Northern California Current

Creator:: Keister, Julie Eileen
Abstract:: In eastern boundary current upwelling ecosystems, mesoscale circulation features such as eddies and upwelling filaments play a prominent role in the transfer of water and the associated plankton from the productive nearshore to the oligotrophic deep sea. The relationship between mesoscale circulation, zooplankton distributions, and the across-shelf transport of coastal...
Resource Type:: Dissertation
Full Text:: filaments play a prominent role in the transfer of water and the associated plankton from the productive

Sediment transport on the northern Oregon continental shelf

Creator:: Harlett, John Charles
Abstract:: The distribution of surface sediments on the northern Oregon continental shell is characterized by a nearshore sandy facies and an outer shelf muddy facies, separated by a mid-shelf zone of mixed sand and mud. Currents which have been measured at 130 centimeters above the bottom indicate that the distribution of...
Resource Type:: Dissertation
Full Text:: sediments on the northern Oregon continental shell is characterized by a nearshore sandy facies and an

The influence of early diagenesis on trace element and molybdenum isotope geochemistry

Creator:: Poulson, Rebecca L.
Abstract:: This thesis investigates the influence of early diagenesis on trace metal and molybdenum isotope behavior in marine and lacustrine environments. Chapter one is a synthesis of previous research in all the marine environments investigated, providing an essential geochemical context for interpreting the observed behavior of Mo in these settings. Chapter...
Resource Type:: Dissertation
Full Text:: molybdenum isotope behavior in marine and lacustrine environments. Chapter one is a synthesis of previous

Application of transport-reaction modeling to constrain biogeochemical processes in marine sediments

Creator:: Hong, Wei-Li
Abstract:: Quantifying the mass transport through marine sediments, and the geochemical response to such flow with numerical models has become a common and powerful approach for geochemical data interpretation. In this dissertation, I developed and applied transport-reaction models to unravel complex and interdependent reactions involving carbon, sulfur and silica transformations in...
Resource Type:: Dissertation
Full Text:: numerical models has become a common and powerful approach for geochemical data interpretation. In this

Seconds to hour scale photosynthetic responses in marine microalgae

Creator:: Laney, Samuel R.
Abstract:: Our view of phytoplankton has historically revolved around their inability to control their location in space. The term phytoplankton itself underscores this particular difference between phytoplankton and their sessile terrestrial counterparts. Yet there are other differences between land plants and the phytoplankton that are perhaps equally important, beyond this sessile-planktonic...
Resource Type:: Dissertation
Full Text:: photosynthetic regulation were examined using a numerical model that shows how specific physiological changes

Siberian-Arctic shelf surface-sediments: sources, transport pathways and processes, and diagenetic alteration

Creator:: Viscosi-Shirley, Carolyn
Abstract:: This thesis investigates lithogenic sediments on the Siberian Arctic shelf, their sources, modes of dispersal, transport pathways and post-depositional diagenetic alteration. Working with cores collected from the Chukchi, East Siberian and Laptev Seas, we characterize surface-sediment elemental chemistry and clay mineralogy. We identify five regions with endmember sedimentary compositions. Comparing...
Resource Type:: Dissertation
Full Text:: sedimentary compositions. Comparing these data with a variety of geological, physical oceanographic and other

Vertical distribution of radioactivity in the Columbia River estuary

Creator:: Hanson, Peter James
Abstract:: In situ salinity, turbidity and temperature were measured at discrete depths and water samples for radioanalysis were simultaneously collected in the Columbia River Estuary using a specially designed instrument package. Particulate radioactivity was concentrated by filtration and the dissolved radioactivity by evaporation or ferric oxide bulk precipitation. Radioanalysis was by...
Resource Type:: Masters Thesis
Full Text:: for radioanalysis were simultan- eously collected in the Cblumbia River Estuary using a specially de

Americium and plutonium in water, biota, and sediment from the central Oregon coast

Creator:: Nielsen, Reinald Dreas
Resource Type:: Masters Thesis
Full Text:: (Phillips 1976, 1977). A high concentration factor is not, itself, sufficient information with which to

Bioenergetics and behavior of the krill Euphausia pacifica in the California Current System off the Oregon coast

Creator:: Lindsey, Brie J.
Abstract:: Euphausia pacifica, the North Pacific krill, is a key grazer in the California Current System and an important prey item for consumers such as salmon, seabirds, and whales. As a crucial link between phytoplankton and higher trophic levels, it is essential to understand both the behavior and bioenergetics of this...
Resource Type:: Dissertation
Full Text:: , is a key grazer in the California Current System and an important

Uptake and retention of zinc-65 from food by Euphausia pacifica Hansen

Creator:: Bergeron, Daniel Jimmie
Resource Type:: Masters Thesis
Full Text:: was labeled with zinc-65 and fed to Euphausia pacifica, a macroplanktonic crustacean. Because

Isostatic and Bouguer gravity anomalies along the inside passage of Alaska and British Columbia

Creator:: Banks, Ernest Robey
Resource Type:: Masters Thesis
Full Text:: Straits and Glacier Bay, west of Juneau, Alaska (Phillips, 1966). A Bouguer ancrnaly map based mainly on

On the chemical and physical limnology of Crater Lake, Oregon

Creator:: McManus, James, 1963-
Resource Type:: Dissertation
Full Text:: , which are dominated by subsurface hydrothermal activity, are constrained by a time series of CTD data

Life history, production, and food resources of the deposit-feeding polychaete Euzonus mucronata (Treadwell) on an Oregon coastal sand beach

Creator:: Kemp, P. F.
Resource Type:: Dissertation
Full Text:: micronutrients (e.g. B-complex vitamins, Phillips, 1984) essential to macrofauna rather than as a primary

Satellite observations of the inﬂuence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

Creator:: Gaube, Peter
Abstract:: The influence of mesoscale ocean eddies on near-surface ocean temperature, surface stress and phytoplankton communities is investigated by collocating numerous satellite measurements along with vertical profiles of oceanic temperature and salinity to the interiors of eddies identified and tracked in altimetric sea surface height maps. The surface currents associated with...
Resource Type:: Dissertation
Full Text:: associated with mesoscale ocean eddies impart a curl of the surface stress from the relative motion between

Deformation in the Peru Trench, 6⁰-10⁰S

Creator:: Prince, Roger Allan
Abstract:: Detailed surveys of several segments of the Peru Trench show that the region between 6° to 10⁰ S is an area of recent deformation. Seismic reflection records across the axis of the trench show faulting, uplift, and tilting of the sedimentary fill and the acoustic basement. Uplift of the acoustic...
Resource Type:: Masters Thesis
Full Text:: ridge at 9 °20'S and seaward of the ridge in a basin which is elevated 300 m above the main trench

Calanoid copepod diet in an upwelling system : phagotrophic protists vs. phytoplankton

Creator:: Fessenden, Lynne M.
Abstract:: Calanoid copepod diet was investigated in Oregon coastal waters to determine the trophic significance of phagotrophic protists as copepod prey within an ecosystem where the microplankton biomass is typically dominated by large diatoms. Prior to and during the 1991 upwelling season, clearance rates on phytoplankton and phagotrophic ciliates were measured...
Resource Type:: Dissertation
Full Text:: class composition of male copepods. Both diatom and dinoflagellate diets supported a similar level of

An investigation of the distribution and abundance of ichthyoplankton and juvenile benthic fishes in relation to nearshore hypoxia within the Northern California Current system

Creator:: Johnson, Angela M.
Abstract:: Nearshore hypoxia within the Northern California Current (NCC) system is a seasonal phenomenon caused by coastal upwelling and occurs mainly during late-summer and early fall. The effects of low oxygen levels on fish and invertebrate communities, particularly during early-life history stages, however, are poorly known for this area. I investigated...
Resource Type:: Masters Thesis
Full Text:: Ciannelli Nearshore hypoxia within the Northern California Current (NCC) system is a seasonal

Prediction of hazardous Columbia River bar conditions

Creator:: Enfield, David B.
Abstract:: In this study methods were developed for the prediction of wave conditions that are hazardous to navigation at river entrances, with emphasis on applicability to the Columbia River. There are two basic components to the prediction system: (1) a semi-automated spectral method for forecasting the significant height and average period...
Resource Type:: Dissertation
Full Text:: ) DISTANCE ...... blackp Sticky Note Transparency that was in a pocket of the original document

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