Index Catalog // ScholarsArchive@OSU

Laboratory and field investigations on the movement of sand tracer under the influence of water waves : ripple development and longitudinal spreading of tracer material

Creator:: Miller, Martin C.
Resource Type:: Dissertation
Full Text:: OSCILLATORY RIPPLE MARK SPACING AND THE NEAR-BOTTOM WATER ORBITAL MOTIONS by Martin C. Miller' Paul D

Physical-biological interactions in the Southern Ocean

Creator:: Moore, Jefferson Keith
Abstract:: Physical-biological interactions in the Southern Ocean were investigated using remote sensing data from several different satellite sensors. Satellite sea surface temperature data were used to study the dynamics of the Antarctic Polar Front (PF). Satellite ocean color data were used to estimate surface chlorophyll concentrations and their relation to various...
Resource Type:: Dissertation
Full Text:: -Biological Interactions in the Southern Ocean. Abstract approved: Mark Abbott Physical-biological

Sedimentary basins of the Peru continental margin : structure, stratigraphy, and cenozoic tectonics from 6°S to 16°S latitude

Creator:: Thornburg, Todd Mark
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF ThE THESIS OF Todd Mark Thornburg for the degree

Lake level regulation, shoreline erosion and shore protection : Flathead Lake, Montana

Creator:: Lorang, Mark
Abstract:: Concern regarding increased coastal erosion has heightened amid growing acceptance of global warming and associated sea-level rise. This study examines shoreline erosion in Flathead Lake, Montana due to five decades of artificially elevated lake levels. It provides a model to investigate coastal erosion associated with sea-level rise. The natural water...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Mark S. Lorang for the degree of

Sedimentation in the Chile Trench

Creator:: Thornburg, Todd Mark
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Todd Mark Thornburg for the degree

Laboratory investigations of the natural fluorescence of marine phytoplankton

Creator:: Laney, Samuel R.
Abstract:: The influence of nitrate availability and irradiance on phytoplankton natural fluorescence was investigated in laboratory cultures of the marine diatom Thalassiosira weissflogii (Bacillariophyceae). Two cultures of phytoplankton, differing only in the nitrate-limited growth rate, were compared to learn how increases in irradiance influences natural fluorescence. Instrumentation was developed for these...
Resource Type:: Masters Thesis
Full Text:: : ~~--~~---~--~------,........,-------- Mark R. Abbott The influence of nitrate availability and irradiance on phytoplankton natural

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:: Antarctic Polar Front, 170 ·w. Abstract approved: -----r----..-------------- Mark R. Abbott This study

Untangling the complexity of nearshore ecosystems : examining issues of scaling and variability in benthic communities

Creator:: Schoch, G. Carl
Abstract:: The objective of this research was to improve our understanding of how changes in the environment affect ecological processes. Change detection is often confounded by the large variation found in ecological data due to the difficulty of finding replicates in nature. Intertidal communities were chosen for studies of biophysical interactions...
Resource Type:: Dissertation
Full Text:: Mark Abbott and my involvement on the LEWIS Satellite Science Team cultivated many ideas. Field

Studies on the spatial variability of phytoplankton physiology and biomass in the Oregon upwelling system

Creator:: Sanders, Rachel B.
Abstract:: The Oregon upwelling system is a region of high biomass and primary productivity as well as strong mesoscale variability. In order to examine the interaction of physical forcing and ecosystem dynamics, four 3-week sampling cruises were conducted in the Oregon upwelling system as part of the Northeast Pacific Global Ocean...
Resource Type:: Masters Thesis
Full Text:: Variability of Phytoplankton Physiology and Biomas the Oregon Upwelling System Abstract approved: Mark R

The solubility of carbon dioxide in waters of low alkalinity

Creator:: Jones, Mark Murrison
Abstract:: A graphical method, based on a set of acid-base titrations, is presented for the determination of the carbon dioxide speciation in natural solutions. The application of this method, in conjunction with measurements of the partial pressure of carbon dioxide with which our solutions were in equilibrium permitted the calculation of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF MARK MURRISON JONES for the (Name

Wave competence and morphodynamics of boulder and gravel beaches

Creator:: Lorang, Mark
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Mark S. Lorang for the degree of

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:: THE DISSERTATION OF Mark E. Nielsen for the degree of Doctor of Philosophy in Oceanography

An analytical method for the determination of molecular hydrogen in seawater

Creator:: Borgerson, Mark John
Abstract:: I have developed an analytical method for the determination of molecular hydrogen in seawater. It is based on the change of hydrogen concentration in a 30 cc. volume of air as it is equilibrated with a one-liter sample of seawater. The change in hydrogen concentration in the air is measured...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF MARK JOHN BORGERSON for the degree

Planktic foraminifers of the California Current at 42°N : last glacial maximum and present

Creator:: Ortiz, Joseph D.
Abstract:: MOCNESS plankton tows, sediment traps and sedimentary material are used to determine the linkage between bio-physical forcing and foraminiferal response over a range of time scales from the event scale to the glacial interglacial cycle. The annually averaged planktic foraminiferal fauna of the modem California Current is a diverse community...
Resource Type:: Dissertation

Primary production dynamics in the North Pacific subtropical gyre

Creator:: Corno, Guido
Abstract:: The North Pacific subtropical gyre (NPSG), once considered to be a biological desert due to low primary production (PP) and its associated variability, has been found more productive and variable than previously thought. The environmental conditions controlling this relatively high PP variability are yet to be elucidated, despite important implications...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Mark R. Abbott, Ricardo M. Letelier The North Pacific subtropical gyre (NPSG), once

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:: . Letelier Mark R. Abbott Our view of phytoplankton has historically

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:: Mark Halsey, for their unselfish assistance in all phases of the study. Rob was always available for

The structure and sediments of Surveyor Deep-Sea Channel

Creator:: Ness, Gordon Everett
Abstract:: Surveyor Deep-Sea Channel extends for approximately 700 km over the northern Alaskan Abyssal Plain. It originates near the base of the continental slope opposite Dry Bay and Alsek Strath and terminates in the Aleutian Trench south of Kodiak Island. East of Giacomini Seamount, the axial gradient of the channel is...
Resource Type:: Masters Thesis
Full Text:: STRUCTURE AND SEDIMENTS OF SURVEYOR DEEP-SEA CHANN: Abstract approved: Dr. L. D. Kulm Surveyor Deep-Sea

Morphology, shallow structure, and evolution of the Peruvian continental margin, 6⁰ to 18⁰ S

Creator:: Masias Echegaray, Juan Antonio
Abstract:: Detailed bathymetric survey data were collected along the Peruvian continental margin and were compiled by the author and other investigators to construct a new bathymetric map for the area between 6° to 18°S latitude. Based on this map and individual bathymetric profiles, the continental shelf topography is essentially flat. Four...
Resource Type:: Masters Thesis
Full Text:: ) (Date) Title: MORPHOLOGY, SHALLOW STRUCTURE, AND EVOLUTION OF THE PERUVIAN C Abstract approved: L. D

Turbulence in the bottom boundary layer

Creator:: Newberger, Priscilla
Resource Type:: Dissertation
Full Text:: Abstract approved: D. R./Caldwell Vertical profiles of temPerature, temperature-gradient and, in some

Dynamics of the Columbia River tidal plume

Creator:: Kilcher, Levi F.
Abstract:: This dissertation investigates the dynamics of the tidally modulated outflow from the Columbia River mouth using high resolution measurements of velocity, density and turbulent microstructure. At high tide, flow through the river mouth reverses from flood (onshore) to ebb (offshore). During ebb, buoyant fluid issues from the river mouth and...
Resource Type:: Dissertation
Full Text:: McKemie, Joan and Mark Keeney, Yule Kilcher and Ruth Marriott. CONTRIBUTION OF AUTHORS Dr. Jonathan D

Marine geology of the continental margin off southern Oregon

Creator:: Spigai, Joseph John
Abstract:: The continental margin off southern Oregon, which includes the shelf and slope from Cape Blanco to the Oregon-California border, exhibits a distinctive marginal-plateau structural pattern which divides the margin into the continental shelf, the upper continental slope and its associated benches, and the lower continental slope. Lutum transport and deposition...
Resource Type:: Dissertation
Full Text:: GEOLOGY OF THE CONTINENTAL MARGIN OFF SOUTHERN OREGON Abstract approved: L. D. Kulm The continental

Sedimentary texture--a key to interpret deep-marine dynamics

Creator:: Allen, David William
Abstract:: The processes responsible for transporting and depositing thick sections of coarse-grained terrigenous clastics on the abyssal floor and for forming associated sedimentary structures are still conjectural. Many workers attribute coarse deep-sea sediments and their probable lithified equivalent, the graywackes of flysch deposits to some type of density movement. Deductions concerning...
Resource Type:: Dissertation
Full Text:: of student) Ph. D. (Degree) in Oceanography presented on (Major) (Date) Title: SEDIMENTARY TEXTURE

A study of turbulence in the viscous sublayer and logarithmic region of the bottom boundary layer

Creator:: Chriss, Terry Michael
Abstract:: Detailed current profiles between the sediment-water interface and 20 cm above it reveal a viscous sublayer in the bottom boundary layer on the Oregon continental shelf. Data from three field experiments are used to test fundamental assumptions about boundary layer flow in the ocean. The first study, discussed in Chapter...
Resource Type:: Dissertation
Full Text:: Viscous Sublaver and Logarithmic Region of the Bottom Boundary Layer abstract approved: D. Caidwell

Chile trench : extensional rupture of oceanic crust and the influence of tectonics on sediment distribution

Creator:: Schweller, W. J. (William John)
Abstract:: Extensive new trackline coverage of the Chile Trench between 23°S and 34°S, including more than 60 bathymetric and seismic reflection profiles across the trench axis, allows a much more detailed study of the tectonics and sedimentation of this feature than previously possible. Sediment distribution along the axis shows a remarkable...
Resource Type:: Masters Thesis
Full Text:: DISTRIBUTION Abstract approved: L. D. Kuim Extensive new trackline coverage of the Chile Trench between 23°S

Prediction of breaker type and measurement of surf-bores on an ocean beach

Creator:: Gaughan, Michael Kenneth
Resource Type:: Dissertation
Full Text:: ) ] In this equation kh D 1 + sinh(kh) cosh(kh) k = 2rr/L and w = 2,r/T, where L and I are the wave

Cascadia channel : the anatomy of a deep-sea channel

Creator:: Griggs, Gary B.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF GARY BRUCE GRIGGS for the Ph. D

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:: . Bridgeman, T. Builder, W. Hanshumacher, D. Jacobson and M. Spencer for diving assistance, that made

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

Creator:: Peterson, Curt D.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Curt D. Peterson for the degree of

Early spring nutrient conditions of southeastern Alaska's Inside Passage

Creator:: Coughenower, D. Douglas
Abstract:: Observations were made of salinity, temperature, nitrate + nitrite, phosphate, silicate, total available nitrogen, and chlorophyll a in nine areas of the Alaskan Inside Passage during April of 1971. In general all properties indicated the water to be well mixed throughout this area. The conservative properties were particularly uniform. The...
Resource Type:: Masters Thesis
Full Text:: in one way or another: Elliot Atlas, Saul Alvarez-Borrego, John Callaway, Mark Halsey and Rich

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

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:: Date thesis is presented November 24, 1982 Typed by Karen Dykes and R. D. Brodeur for Richard David

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:: AN ABSTRACT OF THE DISSERTATION OF Rachael D. Mueller for the

Development of 2D models to estimate nearshore bathymetry and sediment transport

Creator:: Splinter, Kristen D.
Abstract:: We examine the interactions and feedbacks between bathymetry, waves, currents, and sediment transport. The ﬁrst two pro jects focus on the use of remote sensing techniques to expand our knowledge of the nearshore. Due to the plethora of snap-shot data that is available from satellites and their distribution via Google...
Resource Type:: Dissertation
Full Text:: 9, 1987, (c) Bar Type C; January 10, 1988, (d) Bar Type D; October 17, 1987, (e) Bar Type E; January

Structure and stratigraphy of tertiary and quaternary strata, Heceta Bank, Central Oregon shelf

Creator:: Muehlberg, Gary Edward
Resource Type:: Masters Thesis
Full Text:: approved L. D. Kulm 7 G. A. owler Heceta Bank is located about 45km west of the Oregon Coast on the edge

Tectonics of the East Pacific Rise, 5⁰ to 12⁰S

Creator:: Rea, David K.
Abstract:: The portion of the East Pacific Rise (EPR) between 5° and 12°S can be subdivided into three areas by fracture zones that offset the rise axis at about 6.5°S and 9°S. In all three regions, the spreading axis of the EPR is defined by a topographic block 300 to 350...
Resource Type:: Dissertation
Full Text:: : TECTONICS OF THE EAST PACIFIC RISE, 5 TO 1 z Os Abstract approved: .H. van Andel and L. D. K The portion

Sources, dispersal, and contributions of fine-grained terrigenous sediments on the Oregon and Washington continental slope

Creator:: Krissek, Lawrence A.
Abstract:: Holocene hemipelagic deposition of terrigenous silts and clays dominates sedimentation on most of the Oregon and Washington continental slope. The sources of these sediments, the mechanisms causing sediment dispersal, and the relative contributions of the various continental sources to the marine deposits have been investigated using quantitative mineral and geochemical...
Resource Type:: Dissertation
Full Text:: consented on short notice to serve as a substitute at the thesis defense. Mark Hower assisted with sample

Prokaryotes associated with marine crust

Creator:: Mason, Olivia Underwood
Abstract:: Oceanic crust covers nearly 70% of the Earth's surface, of which, the upper, sediment layer is estimated to harbor substantial microbial biomass. Marine crust; however, extends several kilometers beyond this surficial layer, and includes the basalt and gabbro layers. In particular, the basalt layer has high permeabilities which allows for...
Resource Type:: Dissertation
Full Text:: in deep sea rocks and to Joy D. Van Nostrand for her tutelage on using this microarray. I would

Modeled Larval Connectivity Patterns in two Coral Reef Regions : the Western Caribbean and the Kenyan-Tanzanian Shelf

Creator:: Mayorga Adame, Claudia Gabriela
Abstract:: Tropical coral reef ecosystems are very important from both the ecological and economical points of view. However, they are also particularly fragile, and have been declining in recent years in most regions of the world, since they are highly susceptible to anthropogenic stressors operating at global scales (e.g., global warming...
Resource Type:: Dissertation
Full Text:: Batchelder and Yvette Spitz and my committee members Dr. Mark Hixon and Dr. Robert Cowen for all their help

The inherent optical properties of the oceans: from closure to prediction

Creator:: Barnard, Andrew Heath
Abstract:: Precise in situ measurement of the spectral absorption and scattering coefficients in several regions has revealed patterns in the distribution of the inherent optical properties on spatial scales that were previously unobtainable. The precision of the measurements was found to be consistent and unbiased across a variety of oceanic regimes...
Resource Type:: Dissertation
Full Text:: for Privacy Redacted for Privacy Redacted for Privacy ACKNOWLEDGMENTS I thank Mark Abbott, Jack

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:: committee members Mark Hixon, Tom Loughlin, Bruce Mate, and Phillip Whanger, provided their time, expertise

The concentration and oxidation state of chromium in sea water

Creator:: Stanford, Harold Milford
Resource Type:: Masters Thesis
Full Text:: . Schmitt, to Mr. Mark M. Jones, and to Mr. I. Lauren Larsen for their cooperation and assistance in

Interactions of wind-driven and tidally-driven circulation in the Oregon coastal ocean

Creator:: Osborne, John J.
Abstract:: Influences of tidal and slower (subtidal) oceanic flows over the continental shelf and slope off Oregon are studied using a high-resolution ocean circulation model and comparative model-data analyses. The model is based on the Regional Ocean Modeling System (ROMS), a fully nonlinear, three-dimensional model (using hydrostatic and Boussinesq approximations). The...
Resource Type:: Dissertation
Full Text:: chapters. Drs. Gary D. Egbert and P. Michael Kosro were involved in all aspects of the development of

Studies on the marine chemistry of nitrous oxide

Creator:: Cohen, Yuval
Resource Type:: Dissertation
Full Text:: sea, Mark Borgerson and Cliff Dahm for help with computer pro- graming, arid Cheryl Schurg for typing

Terrigenous sediments in two continental margin environments : western South America and the Gulf of California

Creator:: Baba, Jumpei
Resource Type:: Dissertation
Full Text:: work. In particular, Mark Hower who assisted in the chemical analyses and Hans Schrader who determined

Contribution of cold seep barite to the barium geochemical budget of a marginal basin

Creator:: McQuay, Erica L.
Abstract:: Large barite (BaSO4) structures mark cold seeps in the southern San Clemente Basin. Barium flux to San Clemente sediments is two to three times greater than fluxes measured in surrounding California Borderland basins. Analyses of sediment trap material, water column samples, sediments and pore water indicate that expected bariumbearing mineral...
Resource Type:: Masters Thesis
Full Text:: . Torres Large barite (BaSO4) structures mark cold seeps in the southern San Clemente Basin

Interannual and interdecadal variability in the timing and strength of the spring transitions along the United States west coast

Creator:: Bilbao, Pablo A.
Abstract:: Past studies of the Oregon and Washington coast have shown a rapid change in the coastal ocean conditions with the onset of upwelling in spring. This process, called the spring transition marks the change from winter to summer conditions along the west coast of Unites States. To examine the interannual...
Resource Type:: Masters Thesis
Full Text:: Luis and South Beach. d) The 28-year daily average of the amplitude, also the daily average of Port San

Sea-air CO₂ flux variability on the northeast Pacific continental margin

Creator:: Evans, Wiley
Abstract:: Carbon dioxide (CO₂) fluxes between the ocean and atmosphere on continental margins are difficult to diagnose because these regions experience large variability over spatial and temporal scales spanning meters to basins and hours to years, respectively. In a global sense, continental margins could represent a significant atmospheric CO₂ sink, equivalent...
Resource Type:: Dissertation
Full Text:: composite year of sea-air CO2 flux (mmol m-2 d-1) on the central Oregon mid shelf calculated from NH10 buoy

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:: acceleration (m/s), d is the egg diameter (m), ρ∆ is the density difference between the egg and the ambient

Characterizing the habitat and diving behavior of satellite-tagged blue whales (Balaenoptera musculus) off California

Creator:: Irvine, Ladd
Abstract:: This study was designed to identify and characterize areas of concentrated use and diving behavior of blue whales (Balaenoptera musculus) off the California coast. During the summer of 2004, thirteen blue whales were tagged with implantable Telonics ST-15 Argos satellite-monitored radio tags and five were tagged with Telonics ST-21 Argos...
Resource Type:: Masters Thesis
Full Text:: 100 d with a total of 2159 locations recorded. Whales generally remained near the continental slope

An examination of the spectrum for coastal winds on the mesoscale

Creator:: Frye, Daniel Evan
Abstract:: Wind speed data were taken at a weather station on the coast and horizontal wind speed energy spectra were computed. The shape of an average spectrum obtained in marine environment is compared with an average land spectrum and the presence of a spectral gap is observed in the shoreline spectrum....
Resource Type:: Masters Thesis
Full Text:: 10 day period in late July of 1970. At the same time, by using an Esterline Angus recorder to mark

Sedimentary organic matter : distribution and alteration processes in the coastal upwelling region off Peru

Creator:: Reimers, Clare E.
Abstract:: Recent organic-rich deposits on the Peru continental margin occur along the upper slope (100-450 m) between about ll°S and 16°S and along the lower continental slope (>2000 m). The upper slope deposits reflect high biological production in response to coastal upwelling, but preservation of organic matter is enhanced by the...
Resource Type:: Dissertation
Full Text:: , Mark Hower and Larry Krissek also assisted at various times in the laboratory, at the X-ray, or in

Eddy correlation benthic O₂ exchange rates and characterizations of sediment properties from the central Oregon shelf at 30 meters

Creator:: McCann-Grosvenor, Kristina
Abstract:: Rates of benthic O₂ exchange are important measurements for determining organic matter remineralization, and can shed light on factors driving biogeochemical processes in coastal environments. Measurement of in situ O₂ consumption and production within permeable sediments, such as those found over ~43% of the Oregon-Washington shelf, has traditionally been done...
Resource Type:: Masters Thesis
Full Text:: d-1) and was enhanced during periods of higher bottom water O2 concentration. Contributions to

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:: the shoes of mentor, advisor, friend and colleague. Another, Mark Lorang, has the steadiest pair of

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:: Richard D. Mathews Memorial Scholarship and generous support from the

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:: , Krista Longnecker, Sam Laney, Mark Baumgartner, Lisa B. Eisner, Renellys Perez, Crystal Sigmon, Yvan

Vertical distribution patterns of plankton and their relationship to physical factors over the continental shelf off Oregon

Creator:: Sutor, Malinda
Abstract:: Discrete layers of phytoplankton and zooplankton were observed over the Oregon continental shelf in summer and fall of 2001 and summer 2002 using optical and acoustical technologies and a pump sampling system. Layers of phytoplankton had steep vertical gradients which were associated with gradients in density and local peaks in...
Resource Type:: Dissertation
Full Text:: assistance are: Mark Benfield, Krista Longnecker, Jamie Gomez-Guttierez, Jesse Lamb, Russ Desiderio, Cidney

Zooplankton variability in the California current, 1951-1982

Creator:: Roesler, Collin Stevens
Resource Type:: Masters Thesis
Full Text:: Larry Eber for providing us with the Ca1COFI hydrographic data. Thanks to John A. McGowan and Mark

Modeling Transport, Retention, and Growth of Early Life Stages of Small Pelagic Fishes in the Southern Humboldt System

Creator:: Gomez, Fabian A.
Abstract:: Small pelagic fishes (SPF), such as anchovies and sardines, are ecologically important due to their large abundance and intermediate trophic position that links plankton production to upper trophic levels. They are also economically important, supporting large fisheries that contribute to one fourth of the world fish landings. Reproductive success in...
Resource Type:: Dissertation
Full Text:: ), and daily surface wind fields from QuikSCAT are from the Centre d’ Exploitation et de Recherche

Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

Creator:: Reese, Douglas Charles
Abstract:: Within systems characterized by substantial spatial and temporal variability, abundances of organisms tend to be higher in localized areas. Within the northern California Current system, the identification of such marine, biological hotspots would be of great importance to resource managers, conservationists, and research planners, and is consequently a growing area...
Resource Type:: Dissertation
Full Text:: Upwelling Ecosystem Abstract approved: Richard D. Brodeur Within systems characterized by substantial

Distribution, seasonal variation and community structure of the demersal trawl fauna of Ragay Gulf, Philippines

Creator:: Jamir, Tomas Vergel C.
Resource Type:: Dissertation
Full Text:: .............................................................................. 70 3. Seasonality and Geographic Distribution of the SU Groups 74 D. Environmental Association

Bioenergetics individual based model explorations of juvenile coho salmon growth during their first summer on the Oregon shelf

Creator:: Reser, Brendan Alexander
Abstract:: Salmon survival and eventual recruitment success have long been thought to be determined within the first summer following ocean migration. Juvenile growth during this period is largely influenced by ocean conditions such as temperature, prey availability, abundance, and quality. Shifts in these conditions due to climatic perturbations are particularly prevalent...
Resource Type:: Masters Thesis
Full Text:: Wisconsin, Sea Grant Institute.   12  Hansen M., Boisclair D., Brandt S.B., Hewett, S.W., Kitchell, J.F

Oxygenated natural products in tropospheric aerosols-sources and transport

Creator:: Chen, Xiaojing
Resource Type:: Masters Thesis
Full Text:: figures and Ms. Rosario D. Pichay and Mrs. Barbara McVicar for formatting my thesis. Finally, to my dear

Bio-physical interactions of small pelagic fish schools and zooplankton prey in the California Current System over multiple scales

Creator:: Kaltenberg, Amanda May
Abstract:: Small pelagic fish represent a critical trophic link between plankton and large predators in marine upwelling ecosystems such as the California Current System. Populations of these fish are highly variable over time and are characterized by extreme fluctuations in abundance, which have significant ecosystem impacts. The causes driving this instability...
Resource Type:: Dissertation

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

Effects of physical phenomena on the distribution of nutrients and phytoplankton productivity in a coastal lagoon

Creator:: Millan-Nunez, Roberto
Resource Type:: Masters Thesis
Full Text:: ,D) indicate the stations. Numbers mark midnight. 4 Nitrate time series at the four sampling 18

Seasonal dynamics and allometric considerations of feeding and food processing for macrozooplankton in the northeast Pacific Ocean

Creator:: Ellis, Steven G.
Resource Type:: Dissertation
Full Text:: . Plankton Res. 9: 525-534. Kleppel, G.S., D. Fra.zel, R.E. Pieper, and D.V. Holliday. 1988. Natural diets

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

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:: . Peterson contributed to the data, analysis, and writing of Chapters 3 and 4. Dr. Stephen D. Pierce

Variability and tidal exchange of ecological properties in a coastal lagoon

Creator:: Lara-Lara, Ruben
Resource Type:: Masters Thesis
Full Text:: mark midnight. 4 Temperature and salinity time series. Numbers mark 20 midnight. 5 Phosphate and

Mapping semi-regular autonomous underwater vehicle glider observations onto a cross-shelf section

Creator:: Peery, Andrew Tristan
Abstract:: Two Autonomous Underwater Vehicle Gliders have alternated continuous sampling of a 45-nautical mile transect line (the Newport Hydrographic Line) across the Oregon continental shelf since April, 2006. Strong currents (>25cm/s) push the gliders off their trajectories as they survey this transect line, preventing them from sampling the historically occupied stations...
Resource Type:: Masters Thesis

Hydrothermal activity along the northern Mid-Atlantic Ridge and in the Bransfield Strait backarc basin, Antarctica

Creator:: Chin, Carol Sue
Resource Type:: Dissertation
Full Text:: Connelly, Karen Thompson and Mark Stevensen, Rachel Sours-Page, Bob Peck, Chris Guay, Jim McManus, the

The Atlantic, the Amazon, and the Andes : neogene climate and tectonics viewed from Ceara Rise, western tropical Atlantic

Creator:: Harris, Sara E.
Resource Type:: Dissertation
Full Text:: % standard, (B) 40% standard, (C) 75% standard, and (D) 100% standard

Abundance, movements and feeding habits of the harbor seal, Phoca vitulina, at Netarts Bay, Oregon

Creator:: Brown, Robin Franklin
Resource Type:: Masters Thesis
Full Text:: traveling distarce by sea of 2 km). Mark-remi:t- lrmg estimates (Jolly-Saber method) indicated that

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:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1.4.5 SECTION D

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:: Stecher, Mark Nielsen, and Randy Walker readily assisted at the Hatfield Marine Science Center with

Nitrogen isotopes in a global ocean biogeochemical model : constraints on the coupling between denitrification and nitrogen fixation

Creator:: Somes, Christopher J.
Abstract:: We present a new nitrogen isotope model incorporated into the three-dimensional ocean component of a global Earth System Climate Model designed for millennial timescale simulations. The model includes prognostic tracers for the stable nitrogen isotopes, ¹⁴N and ¹⁵N, in the nitrate (NO₃ˉ), phytoplankton, zooplankton, and detritus variables of the marine...
Resource Type:: Masters Thesis
Full Text:: Galbraith, Moritz Lehmann, Mark Altabet, and Joe Montoya have also provided useful comments that have

Factors affecting the rates of infaunal recolonization of small-scale disturbances on an intertidal sand flat

Creator:: Savidge, William B.
Resource Type:: Masters Thesis
Full Text:: : pit treatments. C: controls. D: defaunated treatments. The treatment having the greater mean rank

The partial equivalent volumes of salts in seawater

Creator:: Duedall, Iver W.
Resource Type:: Masters Thesis
Full Text:: a salt as = M/d - 1000(d -d 0 1 0 Cd 0 where M is the molecular weight of the salt, d is the

Dive and surfacing behavior of bowhead whales (Balaena mysticetus) monitored by satellite-telemetry

Creator:: Krutzikowsky, Gregory K.
Resource Type:: Masters Thesis
Full Text:: whales...... 42 16. Track of whale D/Z-3................................... 46 17. Time series sounding

Tidal-band and high-frequency internal variability on the central Oregon inner shelf

Creator:: Suanda, Sutara H.
Abstract:: Analogous to ocean surface waves, waves in the ocean interior also experience steepening, breaking, and dissipation as they approach the coastline. Much less is known about this internal beach. In this work, extensive moored Acoustic Doppler Current Profiler and temperature/salinity data together with optical remote sensing are combined to describe...
Resource Type:: Dissertation
Full Text:: ) with the boundary conditions Ψ = 0 at z = (0,−D). D is the water column depth and background

Paleoclimatic influence on sedimentation and manganese nodule growth during the past 400,000 years at MANOP Site H (eastern equatorial Pacific)

Creator:: Finney, Bruce Preston
Resource Type:: Dissertation
Full Text:: intensities. C and D represent non-steady-state changes from condition B to A and A to B, respectively. The

Tidal prediction, and the variation of the observed tide from the predicted tide at Newport, Oregon

Creator:: Swanson, R. Lawrence (Robert Lawrence), 1938-
Abstract:: A tidal and sea level survey was begun in Yaquina Bay, Oregon, on 8 May, 1964. A continuous recording tide gage was installed at the pier of the Oregon State University Marine Science Center. An harmonic analysis of the observed data was made, and the major tidal constants were compared...
Resource Type:: Masters Thesis
Full Text:: stilling well for the tide gage. My further thanks to them for taking time to mark the marigram and wind

Utilization of inorganic and organic nitrogen by phytoplankton off the Washington and Oregon coasts

Creator:: Kokkinakis, Steven Andon
Resource Type:: Masters Thesis
Full Text:: ; Mark "Dr. Methods" Brzezinski, my student mentor; Hal Batchelder, D & D fanatic and provider of neat

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:: halibut, and Pacific halibut. In addition, I thank Richard D. Brodeur and William Pearcy for interest in

Edge waves in the presence of strong longshore currents

Creator:: Howd, Peter A.
Resource Type:: Dissertation
Full Text:: PVO and the guys next door, Chuck, Tom, and Mark, who manage to keep the com- puters running despite

Distribution and abundance of four trace metals in net phytoplankton and seston off the Oregon coast

Creator:: Vogel, Allan Hayes
Resource Type:: Masters Thesis
Full Text:: . Petersen and D. Menzies, respectively. Criticism and valuable suggestions were given to me by many

Phosphorus control of nitrogen fixation

Creator:: Watkins-Brandt, Katie S.
Abstract:: Under conditions of fixed N-limitation, as with most oligotrophic systems, the process of biological N₂ fixation (diazotrophy) is favored, provided the necessary trace elements and vitamins are sufficient. Despite the well understood contributions of N₂ fixation in oligotrophic regions, the nutritional and ecological controls of marine diazotrophs have not been...
Resource Type:: Masters Thesis
Full Text:: phosphate in sediments. Analyst 101:187-197 Baldwin D (1998) Reactive “organic” phosphorus revisited

Standing edge waves on a pocket beach

Creator:: Culley, Sara K.
Resource Type:: Masters Thesis
Full Text:: 1-4 20 (a-d). The 0.0 meter contour corresponds to the mean runup excursion on each day. 6. A

Temperature and velocity fields near the deep ocean floor west of Oregon

Creator:: Korgen, Benjamin Jeffry
Resource Type:: Dissertation
Full Text:: raised with regard to the thesis work of Dr. R. S. Mesecar. Dr. L. D. Kuim has been particularly helpful

An X-radiographic study of the October 2000 Po River flood deposit, Italy

Creator:: Hunt, Louise
Abstract:: During October 2000 the Po River, Italy's largest river, experienced a historically significant flood, producing a deposit on the adjacent prodelta. In December 2000 an event-response study of the deposit was conducted, and during the ensuing 16 months three additional sampling cruises were conducted to study the subsequent evolution of...
Resource Type:: Masters Thesis
Full Text:: grateful to Rob Holman, Clare Reimers, and Mark Christensen for their time, guidance, and interest in this

Marine geophysical studies offshore: Newport, Oregon

Creator:: Whitcomb, James Hall
Abstract:: A marine geophysical study using shallow seismic reflection, gravity and magnetic methods of investigation was done for an offshore area near Newport, Oregon. The area is bounded by the latitudes 44°1O' to 44°50' N. and longitudes 124°07' to 124°30' W. The interpretation of observational data showed that the geology of...
Resource Type:: Masters Thesis
Full Text:: ' ............................. 41 Section Along D-D' ............................. 45 VI. SUMMARY AND CONCLUSIONS

Comparing the hydrography and copepod community structure of the continental shelf ecosystems of Washington and Oregon, USA from 1998 to 2009 : can a single transect serve as an index of ocean conditions over a broader area?

Creator:: Lamb, Jesse F.
Abstract:: Bi-weekly sampling of zooplankton and environmental parameters was conducted along a cross-shelf transect off the coast of Newport, OR, USA (44.65°N) from 1996 to present. Results have demonstrated the feasibility of using copepod community structure as an early indicator of ecosystem response to seasonal and large scale environmental changes in...
Resource Type:: Masters Thesis
Full Text:: this data, we calculated water column stability (dρ/dz), the change in station density between two

Paleoceanography of the Gulf of California : a 350 - year diatom record

Creator:: Matherne, Anne Marie
Resource Type:: Masters Thesis
Full Text:: , passing and touching an unseen mark; they freeze, fall out of time and into thought; an ideograph in the

Geochemical tracers of Arctic river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Dissertation
Full Text:: ancillary data contributed by Dr. Tim Boyd, Dr. Rob Holman, Dr. Wieslaw Maslowski, Mark Ortermeyer, Dr

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:: \O STRAI1 T'ORESDY,\ LAND QUEEN CHARLOTTE SOUND 550 50° 1300 ARj'\f)IS LAN D Figure 1. Index

Statistical distribution of swash maxima on natural beaches

Creator:: Holland, K. Todd
Abstract:: Beach response to overwash processes is a topic of significant importance. Two particular aspects of this topic were chosen for detailed analysis: the distribution of maximum wave runup elevations and the cross-beach celerity gradient of overwash bores on natural beaches. Data were collected using both traditional nearshore instrumentation and recently...
Resource Type:: Masters Thesis
Full Text:: (Flathead Lake) and the speaker was Mark Lorang. This young scientist discussed some amazing results from

The activity pattern of Diadora aspera

Creator:: Boese, Bruce Leon
Abstract:: Diadora aspera is an intertidal keyhole limpet found in the mid-tidal zone. Its activity pattern was estimated under laboratory conditions using time-lapse-photography and manometric determinations of oxygen consumption. Statistical and computer analyses of the photographic data suggest the presence of both a 24 hour and a 12-13 hour rhythm in...
Resource Type:: Masters Thesis
Full Text:: to express my appreciation to Dr Martin D. Knittel and the Environmental Protection Agency without

Extraction of zinc from sea water

Creator:: Buffo, Lynn Karen
Abstract:: A liquid-extraction procedure for the concentration of zinc in sea water was developed. The metal ion in sea water was chelated with sodium diethyldithiocarbamate and extracted into an organic solvent, methylisobutylketone, at the normal pH of sea water. A back-extraction into HCl followed, providing a concentration of 30X for the...
Resource Type:: Masters Thesis
Full Text:: - chemically in the d. c. arc. His results gave a concentration factor of 400,000 with a variation of 10%. 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:: that these ridges mark the initiation of seafloor spreading. However, the extent to which these ridges

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