Index Catalog // ScholarsArchive@OSU

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

Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

Creator:: Tyburczy, Joe A.
Abstract:: Recruitment of larvae from the plankton is an important determinant of community structure in marine systems. In populations of many marine species, recruitment determines the basic demographic parameters of immigration, emigration, and reproduction. Moreover, the effect of recruitment as an "ecological subsidy" can determine the strength of interactions among species...
Resource Type:: Dissertation
Full Text:: input on all matters statistical. Jack Barth has helped me gain the background in oceanography

Geochemical and Geostatisical Analyses of Quaternary Climate Variability over Millennial-to-Orbital Timescales

Creator:: Barth, Aaron M.
Abstract:: The goal of dissertation research was to use geochemical, statistical and geological methods to constrain and understand climate variability over several different time scales. Specifically, I have addressed three questions regarding past climate change: (1) how does the record of Irish cirque glaciers constrain the dimensions of the Irish Ice...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Aaron M. Barth for

Evaluation of dungeness crab pots as platforms of opportunity for ocean-observing research

Creator:: Childress, Jeremy L.
Abstract:: Oregon Fishermen in Ocean Observing Research (OrFIOOR) is a cooperative research program between ocean scientists and fishermen in the Pacific Northwest. Dungeness crab fishermen attach sensor packages (temperature and dissolved oxygen) to crab pots. The pots serve as platforms of opportunity for ocean observing. This study examines three principle questions...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jeremy L

The ecology of ocean acidification : integrating the effects of pH variation among other environmental stressors on biogeography and organismal performance in rocky intertidal communities

Creator:: Rose, Jeremy M.
Abstract:: Ocean Acidification (OA) has emerged as a major threat to marine ecosystems, particularly regarding calcifying organisms. A growing body of literature describing laboratory investigations into pH stress indicates broadly deleterious effects for calcifiers, but responses vary greatly across taxa and can be influenced by variations in other environmental characteristics. Scaling...
Resource Type:: Dissertation
Full Text:: Intertidal Communities AN ABSTRACT OF THE DISSERTATION OF Jeremy M Rose for the degree of Doctor of

Design and testing of an integrated wildlife-wind turbine interactions detection system

Creator:: Flowers, Jeremy Matthew
Abstract:: Bird and bat mortalities caused by interactions with wind turbines is a critical concern that requires addressing for conservation purposes. Deploying a low cost sensor array will be instrumental during site permitting, conducting impact assessments of existing wind farms, and assessing efficacy of wildlife mortality mitigation or wildlife deterrent technologies....
Resource Type:: Masters Thesis
Full Text:: Interactions Detection System AN ABSTRACT OF THE THESIS OF Jeremy Matthew

Ocean Temperature Variability during the Late Pleistocene

Creator:: Hoffman, Jeremy Scott
Abstract:: This dissertation explores one overarching question relevant to the paleoclimate of the latest Pleistocene glacial cycle (approximately the last 130,000 years): “How did spatial and temporal evolution of ocean temperature, both at the surface and interior, relate to other parts of the climate system in the late Pleistocene?” Results from...
Resource Type:: Dissertation
Full Text:: Jeremy Scott Hoffman for the degree of Doctor of Philosophy in Geology presented on August 25, 2016

Analyzing large paleoclimate datasets : implications for past and future climate change

Creator:: Shakun, Jeremy D.
Abstract:: This dissertation presents the results of statistical analyses of large climate datasets from two time intervals – the 20th century instrumental record and the proxy record of the last deglaciation – in order to understand the forcings and mechanisms of past climate variability. A longstanding question in climate dynamics concerns...
Resource Type:: Dissertation
Full Text:: 1 AN ABSTRACT OF THE DISSERTATION OF Jeremy D. Shakun

Kinematics and Dynamics of a Model Eastern-boundary Poleward Undercurrent

Creator:: Duran, Rodrigo
Abstract:: A carefully calibrated primitive-equation model from 41°N to 48°N is used to study the poleward undercurrent off the US west coast. Chapter 2 describes poleward flow over the slope from Eulerian and Lagrangian perspectives. The model is robust, in the sense of several characteristics being qualitatively consistent with observational and...
Resource Type:: Dissertation
Full Text:: sel�ess help, and valuable directions, Profs. Ricardo Matano, Jack Barth, Mike Kosro and John Selker

Simulating past, present, and future changes in ENSO : a model evaluation and data-model comparison

Creator:: Alder, Jay R.
Abstract:: This thesis presents the results of a formal evaluation of a new AOGCM, GENMOM, demonstrating its ability to simulate present-day climate and ENSO dynamics. The model is applied to simulate climate for the Last Glacial Maximum, deglacial, and Holocene time periods. The model output is evaluated against the best available...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Jay R. Alder for the degree of Doctor of Philosophy in Geography presented on

On Morality, Psychology, and Conservation: An Interdisciplinary Appraisal of Ethics in Context

Creator:: Batavia, Chelsea K.
Abstract:: Conservation is, among other things, the expression of a relationship between humans and nonhuman nature. This relationship can be described empirically using the methods of social science, but it can also be prescribed in the form of philosophical arguments. Scholars in the field of environmental ethics have discussed and debated...
Resource Type:: Dissertation
Full Text:: Andre and Jay Webster, for keeping me humble; to my parents, for loving me and listening to me rant

Optics, structure and variability of the offshore Columbia River plume

Creator:: Saldías, Gonzalo
Abstract:: The Columbia River delivers the greatest amount of freshwater to the coastal ocean along the U.S. Pacific coast. This freshwater forms the Columbia River plume, a mesoscale plume with significant implications on coastal ocean physical, biological, chemical, and geological processes. The plume is transported south and offshore during the upwelling...
Resource Type:: Dissertation
Full Text:: . John Barth, Ted Strub, Mike Kosro, and Nicholas Tufillaro, for their comments, time, and availability

Buoyancy-Driven Coastal Currents off Oregon during Fall and Winter

Creator:: Mazzini, Piero L. F., Barth, John A., Shearman, R. Kipp, and Erofeev, A.
Abstract:: During fall/winter off the Oregon coast, oceanographic surveys are relatively scarce because of rough weather conditions. This challenge has been overcome by the use of autonomous underwater gliders deployed along the Newport hydrographic line (NH-Line) nearly continuously since 2006. The discharge from the coastal rivers between northern California and the...
Resource Type:: Article
Full Text:: ., Barth, J. A., Shearman, R. K., & Erofeev, A. (2014). Buoyancy-Driven Coastal Currents off Oregon during

Are large macroalgal blooms necessarily bad? nutrient impacts on seagrass in upwelling-influenced estuaries

Creator:: Hessing-Lewis, Margot L., Hacker, Sally D., Menge, Bruce A., McConville, Sea-oh, and Henderson, Jeremy
Abstract:: Knowledge of nutrient pathways and their resulting ecological interactions can alleviate numerous environmental problems associated with nutrient increases in both natural and managed systems. Although not unique, coastal systems are particularly prone to complex ecological interactions resulting from nutrient inputs from both the land and sea. Nutrient inputs to coastal...
Resource Type:: Article
Full Text:: , BRUCE A. MENGE, SEA-OH MCCONVILLE, AND JEREMY HENDERSON Oregon State University, Department of

Genome-Wide Characterization of Light-Regulated Genes in Neurospora crassa

Creator:: Wu, Cheng, Yang, Fei, Smith, Kristina M., Peterson, Matthew, Dekhang, Rigzin, Zhang, Ying, Zucker, Jeremy, Bredeweg, Erin L., Mallappa, Chandrashekara, Zhou, Xiaoying, Lyubetskaya, Anna, Townsend, Jeffrey P., Galagan, James E., Freitag, Michael, Dunlap, Jay C., Bell-Pedersen, Deborah, and Sachs, Matthew S.
Abstract:: The filamentous fungus Neurospora crassa responds to light in complex ways. To thoroughly study the transcriptional response of this organism to light, RNA-seq was used to analyze capped and polyadenylated mRNA prepared from mycelium grown for 24 hr in the dark and then exposed to light for 0 (control) 15,...
Resource Type:: Article

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

Creator:: Pasmans, Ivo
Abstract:: Currently, forecasts produced by the Oregon-Washington (OR-WA) Coastal Ocean Forecast System are constrained by assimilation of only surface observations. The 4-dimensional variational (4DVAR) data assimilation (DA) algorithm is utilized to combine the model and the data, with the time-independent forecast ("background'') error covariance B. In this study, two possible improvements...
Resource Type:: Dissertation
Full Text:: . Barth, R.K. Shearman, and A. Erofeev collected the glider observations which are used in chapters 2 and

Marine Neritic and Epipelagic Community Dynamics: An Investigation of the 'Yin' and 'Yang', No-Analog, and Refugia from a Multi-species Perspective

Creator:: Barceló, Caren
Abstract:: Changes in ocean conditions influenced by climatic fluctuations have lead to changes in individual species distributions, which alter the diversity, communities and species interactions across marine ecosystems worldwide. Assessing the species composition and identifying regions and habitats that can safeguard the persistence of biota are critically important. In this dissertation,...
Resource Type:: Dissertation
Full Text:: McCune, and Jay Noller for their instruction of both classes, their time, not making me feel stupid

Seasonal and interannual variation in the extent of hypoxia in the northern California Current from 1998–2012

Creator:: Peterson, Jay O., Morgan, Cheryl A., Peterson, William T., and Di Lorenzo, Emanuele
Abstract:: This study addresses the occurrence, severity, and extent of hypoxia over the continental shelf of the northern California Current (40–48.5°N latitude) from 1998 to 2012. Clear seasonal trends exist in the timing and duration of hypoxia. The highest bottom-water dissolved oxygen concentrations occurred from November to March, and levels below...
Resource Type:: Article
Full Text:: Peterson, Jay O., Cheryl A. Morgan, William Seasonal and

Anomalous ichthyoplankton distributions and concentrations in the northern California Current during the 2010 El Niño and La Niña events

Creator:: Auth, Toby D., Brodeur, Richard D., and Peterson, Jay O.
Abstract:: In late spring of 2010, the northern California Current (NCC) experienced a transition from El Niño to La Niña conditions resulting in anomalous distributions and concentrations within the ichthyoplankton community. We analyzed larval fish data collected during the four months before and after this transition and compared them to data...
Resource Type:: Article
Full Text:: 541 867 0350. E-mail address: tauth@psmfc.org (T.D. Auth). Toby D. Auth a,⇑, Richard D. Brodeur b, Jay

A comparative analysis of coastal and shelf-slope copepod communities in the northern California Current system: Synchronized response to large-scale forcing?

Creator:: Bi, Hongsheng, Peterson, William T., Peterson, Jay O., and Fisher, Jennifer L.
Abstract:: The synchrony between coastal and shelf-slope copepod communities was investigated in the northern California Current (NCC) system, a strong upwelling zone, using time series of zooplankton sampled from a nearshore station (9 km offshore, water depth 62 m) and a shelf-slope station (46 km offshore, water depth 297 m). Long-term...
Resource Type:: Article
Full Text:: Bi, Hongsheng, William T. Peterson, Jay O. Peterson, and Jennifer

Anomalous Near-Surface Low-Salinity Pulses off the Central Oregon Coast

Creator:: Mazzini, Piero L. F., Risien, Craig M., Barth, John A., Pierce, Stephen D., Erofeev, Anatoli, Dever, Edward P., Kosro, P. Michael, Levine, Murray D., Shearman, R. Kipp, and Vardaro, Michael F.
Abstract:: From mid-May to August 2011, extreme runoff in the Columbia River ranged from 14,000 to over 17,000 m³/s, more than two standard deviations above the mean for this period. The extreme runoff was the direct result of both melting of anomalously high snowpack and rainfall associated with the 2010–2011 La Niña....
Resource Type:: Article
Full Text:: Oregon Coast Mazzini, P. L., Risien, C. M., Barth, J. A., Pierce, S. D., Erofeev, A., Dever, E. P

Multiple trophic levels fueled by recirculation in the Columbia River plume

Creator:: Kudela, Raphael M., Horner-Devine, Alexander R., Banas, Neil S., Hickey, Barbara M., Peterson, Tawnya D., McCabe, Ryan M., Lessard, Evelyn J., Frame, Elizabeth, Bruland, Kenneth W., Jay, David A., Peterson, Jay O., Peterson, William T., Kosro, P. Michael, Palacios, Sherry L., Lohan, Maeve C., and Dever, Edward P.
Abstract:: Large rivers represent gateways for the transport of terrigenous and anthropogenic material to the coastal ocean. Here we document a ∼700 km2 recirculation or bulge associated with the Columbia River plume that retains recently discharged river water sufficiently to create a regional bioreactor. Fueled by a fluvial nitrate source, this...
Resource Type:: Article
Full Text:: ,1 David A. Jay,6 Jay O. Peterson,7 William T. Peterson,5 P. Michael Kosro,8 Sherry L. Palacios,1

River influences on shelf ecosystems: Introduction and synthesis

Creator:: Hickey, B. M., Kudela, R. M., Nash, Jonathan, Bruland, K. W., Peterson, W. T., MacCready, P., Lessard, E. J., Jay, D. A., Banas, N. S., Baptista, A. M., Dever, Edward P., Kosro, P. Michael, Kilcher, L. K., Homer-Devine, A. R., Zaron, E. D., McCabe, R. M., Peterson, J. O., Orton, P. M., Pan, J., and Lohan, M. C.
Abstract:: River Influences on Shelf Ecosystems (RISE) is the first comprehensive interdisciplinary study of the rates and dynamics governing the mixing of river and coastal waters in an eastern boundary current system, as well as the effects of the resultant plume on phytoplankton standing stocks, growth and grazing rates, and community...
Resource Type:: Article
Full Text:: . MacCready,1 E. J. Lessard,1 D. A. Jay,5 N. S. Banas,6 A. M. Baptista,7 E. P. Dever,3 P. M. Kosro,3 L. K

State of the California Current 2011–2012: Ecosystems Respond To Local Forcing as La Nina Wavers and Wanes

Creator:: Bjorkstedt, Eric P., Goericke, Ralf, McClatchie, Sam, Weber, Ed, Watson, William, Lo, Nancy, Peterson, William T., Brodeur, Richard D., Auth, Toby, Fisher, Jennifer, Morgan, Cheryl, Peterson, Jay, Largier, John, Bograd, Steven J., Durazo, Reginaldo, Gaxiola-Castro, Gilberto, Lavaniegos, Bertha, Chavez, Francisco P., Collins, Curtis A., Hannah, Bob, Field, John, Sakuma, Keith, Satterthwaite, Will, O'Farrell, Michael, Hayes, Sean, Harding, Jeff, Sydeman, William J., Thompson, Sarah Ann, Warzybok, Pete, Bradley, Russell, Jahncke, Jaime, Golightly, Richard T., Schneider, Stephanie R., Suryan, Robert M., Gladics, Amanda J., Horton, Cheryl A., Kim, Sung Yong, Melin, Sharon R., DeLong, Robert L., and Abell, Jeffrey
Abstract:: The state of the California Current System (CCS) since spring 2011 has evolved in response to dissipation of La Niña through spring and summer, resurgence of cooler La Niña conditions in fall and winter, and finally a transition towards ENSO-neutral conditions in spring 2012. The resurgence of La Niña was...
Resource Type:: Article
Full Text:: Newport, or 97365 toBy AUtH, jENNiFEr FisHEr, cHEryl MorGAN, jAy PEtErsoN cooperative institute for

The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

Creator:: Eerkes-Medrano, Dafne I.
Abstract:: The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some of the most productive ecosystems in the globe, is attributed to the nutrient rich waters brought up through upwelling. Climate change scenarios for coastal upwelling systems, predict an intensification of coastal upwelling winds. Associated with intensification in upwelling are biogeochemical...
Resource Type:: Dissertation
Full Text:: weekends and many nights to count larvae. Jennifer Olson, Asako Yamamuro, Satoshi Kimura, Jeremy

Success on the Range

Creator:: Sage Grouse Initiative
Resource Type:: Technical Report
Full Text:: back.” -Rancher Jay Tanner’s comment on juniper removal that has also restored water to historic

IIFET 2014 Australia conference participants

Creator:: Shriver, Ann
Resource Type:: Conference Proceeding
Full Text:: @gmail.com Jay Abolofia Department of Agricultural and Resource Economics University of California

2010/2011 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other

Marine bird aggregations associated with the tidally-driven plume and plume fronts of the Columbia River

Creator:: Zamon, Jeannette E., Phillips, Elizabeth M., and Guy, Troy J.
Abstract:: Freshwater discharge from large rivers into the coastal ocean creates tidally-driven frontal systems known to enhance mixing, primary production, and secondary production. Many authors suggest that tidal plume fronts increase energy flow to fish-eating predators by attracting planktivorous fishes to feed on plankton aggregated by the fronts. However, few studies...
Resource Type:: Article
Full Text:: , compared to the southern face (Jay et al., 2009). In addition, the breakdown of the plume front proceeds

2009/2010 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other

Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Creator:: Reimers, Clare E., Özkan-Haller, H. Tuba, Berg, Peter, Devol, Allan, McCann-Grosvenor, Kristina, and Sanders, Rhea D.
Abstract:: Three stations, at similar to ~80 m water depth on the Oregon shelf between 44.7 degrees N and 43.9 N, were studied under hypoxic conditions in late spring and summer of 2009 to determine benthic oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an...
Resource Type:: Article
Full Text:: water during spring and summer [Barth et al., 2007; Chan et al., 2008]; in contrast, large wind waves

Benthic oxygen consumption rates during hypoxic conditions on the Oregon continental shelf: Evaluation of the eddy correlation method

Creator:: Reimers, Clare E., Özkan-Haller, H. Tuba, Berg, Peter, Devol, Allan, McCann-Grosvenor, Kristina, and Sanders, Rhea D.
Abstract:: Three stations, at ∼80 m water depth on the Oregon shelf between 44.7°N and 43.9 N, were studied under hypoxic conditions in late spring and summer of 2009 to determine benthic oxygen consumption rates. Oxygen fluxes were derived from eddy correlation (EC) measurements made from an autonomous lander deployed for...
Resource Type:: Article
Full Text:: water during spring and summer [Barth et al., 2007; Chan et al., 2008]; in contrast, large wind waves

Bridging environmental physiology and community ecology : temperature effects at the community level

Creator:: Iles, Alison C.
Abstract:: Most climate change predictions focus on the response of individual species to changing local conditions and ignore species interactions, largely due to the lack of a sound theoretical foundation for how interactions are expected to change with climate and how to incorporate them into climate change models. Much of the...
Resource Type:: Dissertation
Full Text:: siblings: Margot Hessing-Lewis, Dafne Eerkes- Medrano, office mates Sarah Close and Joe Tyburczy, Jeremy

A springtime source of toxic Pseudo-nitzschia cells on razor clam beaches in the Pacific Northwest

Creator:: Hickey, Barbara M., Trainer, Vera L., Kosro, P. Michael, Adams, Nicolaus G., Connolly, Thomas P., Kachel, Nancy B., and Geier, Susan L.
Abstract:: Concentrations of domoic acid (DA) above the regulatory limit in Washington coast razor clams are usually higher on northern beaches from summer to fall. Recent field studies have confirmed that the primary source of toxic Pseudo-nitzschia (PN) cells in those seasons is a semi-retentive topographically trapped seasonal eddy located offshore...
Resource Type:: Article
Full Text:: ), and, to a lesser extent, on Heceta Bank, off central Oregon (Kosro, 2005; Barth et al., 2005; Gan and

A Historical and Archaeological Evaluation of Fort Yamhill's Hospital Site (35PO75)

Creator:: Wesseler, Kimberly A.
Abstract:: During the summer of 2016, Oregon State University conducted preliminary excavations of the hospital at Fort Yamhill, Oregon (35PO75). Fort Yamhill (1856-1866), has long been a focus of OSU’s field schools, offering glimpses into garrison life through the eyes of the officers and the enlisted men. However, up until recently,...
Resource Type:: Masters Thesis
Full Text:: men and communication (ed. Barth 1959). 14 Figure 4. Map of Coast Reservation and Military

Interannual variations in phytoplankton community structure in the northern California Current during the upwelling seasons of 2001−2010

Creator:: Du, Xiuning, Peterson, William, and O'Higgins, Linda
Abstract:: Phytoplankton species were enumerated from 72 samples collected biweekly during the upwelling season (May to August) of 2001−2010 to test for effects of interannual variations in upwelling and decadal basin-scale variability on phytoplankton species composition and community structure. Cluster analysis of phytoplankton community structure identified 7 groups; 1 group was...
Resource Type:: Article
Full Text:: . 2009), and to effects of wind-intensification at prominent capes and headlands (e.g. Checkley & Barth

Population Dynamics and Variability of Two Gelatinous Zooplankters (Aequorea and Pyrosoma atlanticum) in the Northern California Current

Creator:: Sorensen, Hilarie L.
Abstract:: This research focused on population dynamics of two gelatinous zooplankters (Aequorea & Pyrosoma atlanticum) in the northern California Current to assess their relationship to environmental conditions and role in the pelagic ecosystem. Data collected since 1999 showed seasonal and interannual fluctuations in the abundance and distribution of Aequorea in the...
Resource Type:: Masters Thesis
Full Text:: area and a fisheries hot spot (Checkley & Barth 2009). Throughout spring and summer, winds blowing

Influence of a Coastal Riverine Plume on the Cross-shelf Variability in Hydrography, Zooplankton, and Juvenile Salmon Diets

Creator:: Brodeur, R. D. and Morgan, C. A.
Abstract:: Riverine plumes in nearshore coastal waters are areas of enhanced production and accumulation of prey and may increase availability of food during a critical period of juvenile salmon survival and hence serve as a nursery area for these juveniles. Physical and biological sampling was conducted along a cross-shelf transect through...
Resource Type:: Article
Full Text:: -Devine et al. 2009; Jay et al. 2009). These factors make plume characterization problematic. Roegner et

An Interdisciplinary approach towards understanding late Pleistocene ice sheet change

Creator:: Cuzzone, Joshua K.
Abstract:: The results presented in this dissertation address a number of questions regarding late Pleistocene and Holocene ice-sheet and climate interactions, spanning disciplines involving paleoclimatology and atmospheric science. These studies use various techniques in geochemistry, climate modeling, and ice-sheet modeling to address ice- sheet response to climate and the attendant interactions...
Resource Type:: Dissertation
Full Text:: Barth, Nilo Bill, Andrea Balbas, and Jeremy Hoffman. You have all been instrumental in my growth and

Patterns of macrophyte wrack deposition on sandy beaches of the Pacific Northwest coast, U.S.A.

Creator:: Reimer, Jessica N.
Abstract:: Dislodged macroalgae and seagrasses, also known as marine wrack, frequently wash into coastal ecosystems from the ocean and are potentially important ecological resources for biological communities. These!nutrient and organic matter subsidies may be especially important on sandy beaches, where little in situ primary productivity exists for higher trophic levels. To...
Resource Type:: Masters Thesis
Full Text:: Cerny-Chipman, Chenchen Shen, Sarah Close, Jeremy Rose, Jeremy Henderson, Alison Iles, Reuben Biel

The roles of nutrient dynamics, oceanography, and light in the structure and functioning of rocky intertidal macrophyte assemblages

Creator:: Close, Sarah L.
Abstract:: The influence of the physical environment on organisms has long been a subject of ecological research. But, the complex drivers of environmental variation, and the multiple scales at which this can occur, make studying this topic a difficult challenge. In rocky intertidal habitats, oceanographic- and climate-scale variability influence benthic communities...
Resource Type:: Dissertation
Full Text:: camaraderie of Jeremy Rose. Allie Barner, Liz Cerny- Chipman, Chenchen Shen, Jessie Reimer, and Jenna

Structure, variability, and salt flux in a strongly forced salt wedge estuary

Creator:: Ralston, David K., Geyer, W. Rockwell, and Lerczak, James A.
Abstract:: The tidally varying circulation, stratification, and salt flux mechanisms are investigated in a shallow salt wedge estuary where fluvial and tidal velocities are large and the steady baroclinic circulation is comparatively weak. The study integrates field observations and numerical simulations of the Merrimack River estuary. At moderate to high discharge...
Resource Type:: Article
Full Text:: dynamically similar to the Merrimack include the Columbia [Jay and Smith, 1990b], Connecticut [Garvine, 1975

Dynamics of coastal meta-ecosystems: the intermittent upwelling hypothesis and a test in rocky intertidal regions

Creator:: Menge, Bruce A. and Menge, Duncan N. L.
Abstract:: The intermittent upwelling hypothesis (IUH) predicts that the strength of ecological subsidies, organismal growth responses, and species interactions will vary unimodally along a gradient of upwelling from persistent downwelling to persistent upwelling, with maximal levels at an intermediate or ‘‘intermittent’’ state of upwelling. To test this model, we employed the...
Resource Type:: Article
Full Text:: weather alterations (e.g., Barth et al. 2007). Intra-seasonal variation ranges from persistent, near

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:: , Bill Peterson, Kipp Shearman and Jack Barth provided important input on chapter 5. TABLE

Transport and coastal zooplankton communities in the northern California Current system

Creator:: Bi, Hongsheng, Peterson, William T., and Strub, Paul T.
Abstract:: Alongshore transport was estimated from the gridded AVISO altimeter data and water level data from NOAA tide gauges (1993–2010) for the northern California Current (NCC) system. The biomass of the cold neritic copepods including Calanus marshallae, Pseudocalanus mimus and Acartia longiremis (dominants in the eastern Bering Sea, coastal Gulf of...
Resource Type:: Article
Full Text:: processing of data: Craig Risien, Jay Peterson, Leah Feinberg, Tracy Shaw, Jennifer Menkel, Rian Hooff, Karen

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:: al. 2005), the largest source of freshwater discharge into the Pacific Northwest (Naik & Jay 2005

Eastward Routing of Glacial Lake Agassiz Runoff caused the Younger Dryas Cold Event

Creator:: Leydet, David J.
Abstract:: The purpose of this thesis is to analyze an abrupt case of climate change in the past as a means to understand the mechanisms that force climate change. By looking to past analogs of climate change, we hopefully will gain an understanding of these events, which could be used to...
Resource Type:: Masters Thesis
Full Text:: the following individuals for their impact on this work: Aaron Barth - thank you for your

Dynamics of wind-driven estuarine-shelf exchange in the Narragansett Bay estuary

Creator:: Pfeiffer-Herbert, A. S., Kincaid, C. R., Bergondo, D. L., and Pockalny, R. A.
Abstract:: Physical exchange between estuarine and continental shelf waters impacts flushing dynamics of the estuary and determines rates of ocean inputs of nutrients and plankton. To investigate the occurrence and propagation of shelf water intrusions into the Narragansett Bay estuary, we collected velocity data near the estuarine–shelf interface during three summer...
Resource Type:: Article
Full Text:: upwelling and downwelling along the coast (Brink, 1983; Weisberg et al., 2001; Castelao and Barth, 2005) and

When is bigger better? Early marine residence of middle and upper Columbia River spring Chinook salmon

Creator:: Tomaro, Londi M., Teel, David J., Peterson, William T., and Miller, Jessica A.
Abstract:: Early ocean residence is considered a critical period for juvenile salmon although specific survival mechanisms are often unidentified and may vary by species or life stage. Columbia River spring-run Chinook salmon Oncorhynchus tshawytscha abundance has declined dramatically since the early 1900s. To elucidate mechanisms of early marine survival, we tested...
Resource Type:: Article
Full Text:: conditions in winter to predomi- nantly upwelling conditions in summer (for review, see Checkley & Barth 2009

Boredom, Buttons, and Booze: The Lifeways of an Enlisted Soldier Stationed at Fort Hoskins (35BE15), Oregon

Creator:: James, Shane P.
Abstract:: In 1976-77 and 2010, Oregon State University (OSU) excavated portions of the enlisted men’s barracks and privy at Fort Hoskins, a Civil War-era fort. In operation from 1856 to 1865, this fort served as part of a security network to protect and monitor the recently created Coast Indian Reservation. The...
Resource Type:: Masters Thesis
Full Text:: , Jeremy Darosa, for editing my thesis and making me sound smarter than I really am. A very special

Search Constraints

Search Results

Limit your search