Index Catalog // ScholarsArchive@OSU

A taxonomic and distributional study of the rhodolith-forming species Lithothamnion muelleri (Corallinales, Rhodophyta) in the Eastern Pacific Ocean

Creator:: Robinson, Nestor M., Hansen, G. I., Fernandez-Garcia, C., and Riosmena-Rodriguez, R.
Abstract:: Lithothamnion rnuelleri is reported for the first time as one of the main components of rhodolith beds along the Eastern Pacific Ocean based on samples from Washington State (USA), Pacific Baja California (Mexico), southern Nicaragua, and Costa Rica. Individual rhodoliths ranged from fruticose to lumpy in morphology, and bi-sporangial, tetrasporangial,...
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Full Text:: East- ern Pacific Ocean based on samples from Washington State (USA), Pacific Baja California (México

How Good Science and Stories Can Go Hand-In-Hand

Creator:: Leslie, Heather M., Goldman, Erica, McLeod, Karen L., Sievanen, Leila, Balasubramanian, Hari, Cudney-Bueno, Richard, Feuerstein, Amanda, Knowlton, Nancy, Lee, Kai, Pollnac, Richard, and Samhouri, Jameal F.
Abstract:: What do you say when you have only a minute to explain to a municipal official why keeping track of the number of bird species found in a park may help make decisions about park management? Talk of significant differences among treatments or testing theory will likely meet with glazed...
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Full Text:: Press, Washington, D.C. Baron, N. 2010b. Stand up for science. Nature 468:1032–1033. Cooper, C. 2012

Spatial and trophic overlap of marked and unmarked Columbia River Basin spring Chinook salmon during early marine residence with implications for competition between hatchery and naturally produced fish

Creator:: Daly, Elizabeth A., Brodeur, Richard D., Fisher, Joseph P., Weitkamp, Laurie A., Teel, David J., and Beckman, Brian R.
Abstract:: Ecological interactions between natural and hatchery juvenile salmon during their early marine residence, a time of high mortality, have received little attention. These interactions may negatively influence survival and hamper the ability of natural populations to recover. We examined the spatial distributions and size differences of both marked (hatchery) and...
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Full Text:: NOAA Fisheries, Northwest Fisheries Science Center, Newport, OR 97365, USA J. P. Fisher Cooperative

Ocean distribution of the American shad (Alosa sapidissima) along the Pacific coast of North America

Creator:: Pearcy, William G. and Fisher, Joseph P.
Abstract:: We examined the incidental catches of American shad (Alosa sapidissima) taken during research cruises and in commercial and recreational landings along the Pacific coast of North America during over 30 years of sampling. Shad, an introduced species, was mainly found over the shallow continental shelf, and largest catches and highest...
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Full Text:: Cooperative Institute for Marine Resources Studies Hatfield Marine Science Center Oregon State University

Trends in Developed Land Cover Adjacent to Habitat for Threatened Salmon in Puget Sound, Washington, U.S.A.

Creator:: Bartz, Krista K., Ford, Michael J., Beechie, Timothy J., Fresh, Kurt L., Pess, George R., Kennedy, Robert E., Rowse, Melinda L., and Sheer, Mindi
Abstract:: For widely distributed species at risk, such as Pacific salmon (Oncorhynchus spp.), habitat monitoring is both essential and challenging. Only recently have widespread monitoring programs been implemented for salmon habitat in the Pacific Northwest. Remote sensing data, such as Landsat images, are therefore a useful way to evaluate trends prior...
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Full Text:: Fisheries Science Center. In particular, we thank E. Ward for help with the breakpoint modeling, and D

Marine distributions of chinook salmon from the West Coast of North America determined by coded wire tag recoveries

Creator:: Weitkamp, Laurie A.
Abstract:: The coded wire tag (CWT) database contains detailed information on millions of Pacific salmon Oncorhynchus spp. released from hatcheries or smolt traps and recovered in the north Pacific Ocean and its tributaries. I used this data set to examine the spatial and temporal variation in the marine distributions of 77...
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Full Text:: A. Weitkamp a a National Marine Fisheries Service, Northwest Fisheries Science Center, Newport Field

An introduced Asian parasite threatens northeastern Pacific estuarine ecosystems

Creator:: Chapman, John W., Dumbauld, Brett R., Itani, Gyo, and Markham, John C.
Abstract:: The introduced Asian parasitic bopyrid isopod, Orthione griffenis, was first discovered on the Pacific coast of North America in Washington in 1988 and next in California in 1992. The range of Orthione presently extends from British Columbia to Baja California, where it infests at least two species of the native...
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Full Text:: Marine Science Center, Oregon State University, Newport, OR 97365-5296, USA e-mail: John.Chapman

Survey of Pathogens in Hatchery Chinook Salmon with Different Out-Migration Histories through the Snake and Columbia Rivers

Creator:: Van Gaest, Ahna L., Dietrich, Joseph P., Thompson, D. E., Boylen, Deborah A., Strickland, Stacy A., Collier, T. K., Loge, F. J., and Arkoosh, Mary R.
Abstract:: The operation of the Federal Columbia River Power System (FCRPS) has negatively affected threatened and endangered salmonid populations in the Pacific Northwest. Barging Snake River spring Chinook salmon Oncorhynchus tshawytscha through the FCRPS is one effort to mitigate the effect of the hydrosystem on juvenile salmon out-migration. However, little is...
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Full Text:: Fisheries Science Center, Environmental Conservation Division, 2032 Southeast OSU Drive, Newport, Oregon

Bomb-produced radiocarbon validation of growth-increment crossdating allows marine paleoclimate reconstruction

Creator:: Kastelle, Craig R., Helser, Thomas E., Black, Bryan A., Stuckey, Matthew J., Gillespie, Darlene C., McArthur, Judy, Little, Diana, Charles, Karen D., and Khan, Reziah S.
Abstract:: The bivalve Pacific geoduck (Panopea generosa) has been used in the eastern North Pacific Ocean to create proxies for environmental factors such as temperature and oceanographic conditions. This type of research depends upon accurate age determination of Pacific geoducks, which historically was based on shell growth-increment counts. A recent study...
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Full Text:: Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration

Surface distribution of brachyuran megalopae and ichthyoplankton in the Columbia River plume during transition from downwelling to upwelling conditions

Creator:: Roegner, G. Curtis, Daly, Elizabeth A., and Brodeur, Richard D.
Abstract:: In the California Current coastal boundary zone, the spring transition between downwelling and upwelling conditions, along with the fluctuating structure of the Columbia River plume, creates highly dynamic interactions. In this study, we investigated whether the surface distribution of brachyuran larvae and ichthyoplankton would track the dynamics of the Columbia...
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Full Text:: , Richard D. Brodeur c a Northwest Fisheries Science Center, National Marine Fisheries Service, National

Waning magmatic activity along the Southern Explorer Ridge revealed through fault restoration of rift topography

Creator:: Deschamps, A., Tivey, M. A., Chadwick Jr., W. W., and Embley, R. W.
Abstract:: We combine high-resolution bathymetry acquired using the Autonomous Underwater Vehicle ABE with digital seafloor imagery collected using the remotely operated vehicle ROPOS across the axial valley of the Southern Explorer Ridge (SER) to infer the recent volcanic and tectonic processes. The SER is an intermediate spreading ridge located in the...
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Full Text:: Science Center, Oregon State University/CIMRS, Newport, Oregon, USA R. W. Embley NOAA, Pacific Marine

Site Fidelity and Movement of Eight Species of Pacific Rockfish at a High-Relief Rocky Reef on the Oregon Coast

Creator:: Hannah, Robert W. and Rankin, Polly S.
Abstract:: We used acoustic telemetry techniques to study the movements of eight species of Pacific rockfish (genus Sebastes) inhabiting Siletz Reef, a high-relief rocky reef complex on the Oregon coast. Our primary interest was evaluating potential residence times for rockfish species in small, no-take marine protected areas (MPAs) like those recently...
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Full Text:: . Hannah a & Polly S. Rankin a a Oregon Department of Fish and Wildlife, Hatfield Marine Science Center

Bayesian hierarchical modeling of Pacific geoduck growth increment data and climate indices

Creator:: Helser, Thomas E., Lai, Han-lin, and Black, Bryan A.
Abstract:: Growth increment widths from hard structures of marine and freshwater fish and bivalve species are increasingly used to model growth and elucidate relationships with environmental variability. Fully characterizing the intrinsic age-related growth variation among individuals within and between populations, while estimating the extrinsic environmental effects simultaneously, can be challenging. Using...
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Full Text:: Management Division, Alaska Fisheries Science Center, National Marine Fisheries Service, National Oceanic and

Interannual variability in the Northern California Current food web structure: Changes in energy flow pathways and the role of forage fish, euphausiids, and jellyfish

Creator:: Ruzicka, James J., Brodeur, Richard D., Emmett, Robert L., Steele, John H., Zamon, Jeannette E., Morgan, Cheryl A., Thomas, Andrew C., and Wainwright, Thomas C.
Abstract:: The Northern California Current (NCC) is a seasonally productive and open ecosystem. It is home to both a diverse endemic community and to seasonally transient species. Productivity and food web structure vary seasonally, interannually, and decadally due to variability in coastal upwelling, climate-scale physical processes, and the migratory species entering...
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Full Text:: State University, Hatfield Marine Science Center, 2030 Marine Science Dr., Newport, OR 97365, USA bNOAA

An Evaluation of the Influence of Stock Origin and Outmigration History on the Disease Susceptibility and Survival of Juvenile Chinook Salmon

Creator:: Dietrich, Joseph P., Boylen, Deborah A., Thompson, Donald E., Loboschefsky, Erik J., Bravo, Claudia F., Spangenberg, Dina K., Ylitalo, Gina M., Collier, Tracy K., Fryer, Derek S., Arkoosh, Mary R., and Loge, Frank J.
Abstract:: Various methods have been developed to mitigate the adverse effects of the Federal Columbia River Power System on juvenile Pacific salmon out-migrating through the Columbia River basin. In this study, we found that hatchery-reared spring Chinook salmon Oncorhynchus tshawytscha in the river are in varying degrees of health, which may...
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Full Text:: –Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, Washington, 98112, USA

Influence of ocean ecosystem variation on trophic interactions and survival of juvenile coho and Chinook salmon

Creator:: Losee, James P., Miller, Jessica A., Peterson, William T., Teel, David J., and Jacobson, Kym C.
Abstract:: The community of trophically transmitted marine parasites of juvenile coho (Oncorhynchus kisutch) and Chinook (Oncorhynchus tshawytscha) salmon across 8 years (2002–2009) was related to indices of physical and biological ocean conditions and adult returns. When the biomass of lipid-poor, southern origin copepods in the coastal ocean was high during juvenile...
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Full Text:: highlights the need for a better understanding of the mechanisms that link variation in ocean conditions and

Applied Fisheries Oceanography: Ecosystem Indicators of Ocean Conditions Inform Fisheries Management in the California Current

Creator:: Peterson, William T., Fisher, Jennifer L., Peterson, Jay O., Morgan, Cheryl A., Burke, Brian J., and Fresh, Kurt L.
Abstract:: Fisheries oceanography is the study of ecological relationships between fishes and the dynamics of their marine environments and aims to characterize the physical, chemical, and biological factors that affect the recruitment and abundance of harvested species. A recent push within the fisheries management community is toward ecosystem-based management. Here, we...
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Full Text:: variations in ocean conditions. For example, cold conditions are generally more productive and there- fore

A three-dimensional mapping of the ocean based on environmental data

Creator:: Wright, Dawn J.
Abstract:: The existence, sources, distribution, circulation, and physicochemical nature of macroscale oceanic water bodies have long been a focus of oceanographic inquiry. Building on that work, this paper describes an objectively derived and globally comprehensive set of 37 distinct volumetric region units, called ecological marine units (EMUs). They are constructed on...
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Full Text:: extensive, and accounted 39 for 99% of the ocean volume, while the remaining 15 were smaller and shallower

A bioenergetics model to evaluate demographic consequences of disturbance in marine mammals applied to gray whales

Creator:: Villegas-Amtmann, S., Schwarz, L. K., Sumich, J. L., and Costa, D. P.
Abstract:: While sophisticated tools are used to monitor behavioral changes of large marine vertebrates, determining whether these changes are meaningful for management and conservation is challenging. The Population Consequences of Disturbance model proposed a bioenergetics model to detect biologically meaningful population responses, where disturbance costs are linked to lost energy. The...
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Full Text:: , California 95060 USA 2Hatfield Marine Science Center, Oregon State University, Newport, Oregon 97365 USA

Jellyfish, Forage Fish, and the World’s Major Fisheries

Creator:: Robinson, Kelly L., Ruzicka, James J., Decker, Mary Beth, Brodeur, Richard D., Hernandez, Frank J., Quiñones, Javier, Acha, E. Marcelo, Uye, Shin-ichi, Mianzan, Hermes, and Graham, William M.
Abstract:: A majority of the world’s largest net-based fisheries target planktivorous forage fish that serve as a critical trophic link between the plankton and upper-level consumers such as large predatory fishes, seabirds, and marine mammals. Because the plankton production that drives forage fish also drives jellyfish production, these taxa often overlap...
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Full Text:: ; Integration and Application Network, University of Maryland Center for Environmental Science (http

Post-Breeding Season Migrations of a Top Predator, the Harbor Seal (Phoca vitulina richardii), from a Marine Protected Area in Alaska

Creator:: Womble, Jamie N. and Gende, Scott M.
Abstract:: Marine protected areas (MPAs) are increasingly being used as a conservation tool for highly mobile marine vertebrates and the focus is typically on protecting breeding areas where individuals are aggregated seasonally. Yet movements during the non-breeding season can overlap with threats that may be equally as important to population dynamics....
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Full Text:: protected areas: Tools for sustaining ocean ecosystems. Washington, DC: National Academy Press. 288 p. 21

Production possibility frontiers and socioecological tradeoffs for restoration of fire adapted forests

Creator:: Ager, Alan A., Day, Michelle A., and Vogler, Kevin
Abstract:: We used spatial optimization to analyze alternative restoration scenarios and quantify tradeoffs for a large, multifaceted restoration program to restore resiliency to forest landscapes in the western US. We specifically examined tradeoffs between provisional ecosystem services, fire protection, and the amelioration of key ecological stressors. The results revealed that attainment...
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Full Text:: Mountains National Forests in eastern Oregon and southeastern Washington, USA. (For interpretation of the

Deforestation Trends of Tropical Dry Forests in Central Brazil

Creator:: Bianchi, Carlos A. and Haig, Susan M.
Abstract:: Tropical dry forests are the most threatened forest type in the world yet a paucity of research about them stymies development of appropriate conservation actions. The Paran~a River Basin has the most significant dry forest formations in the Cerrado biome of central Brazil and is threatened by intense land conversion...
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Full Text:: . Geological Survey, Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR

Climate and Demography Dictate the Strength of Predator-Prey Overlap in a Subarctic Marine Ecosystem

Creator:: Hunsicker, Mary E., Ciannelli, Lorenzo, Bailey, Kevin M., Zador, Stephani, and Stige, Leif Christian
Abstract:: There is growing evidence that climate and anthropogenic influences on marine ecosystems are largely manifested by changes in species spatial dynamics. However, less is known about how shifts in species distributions might alter predator-prey overlap and the dynamics of prey populations. We developed a general approach to quantify species spatial...
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Full Text:: , Washington, United States of America, 3 Centre for Ecological and Evolutionary Synthesis, Department of

The Power of Three: Coral Reefs, Seagrasses and Mangroves Protect Coastal Regions and Increase Their Resilience

Creator:: Guannel, Greg, Arkema, Katie, Ruggiero, Peter, and Verutes, Gregory
Abstract:: Natural habitats have the ability to protect coastal communities against the impacts of waves and storms, yet it is unclear how different habitats complement each other to reduce those impacts. Here, we investigate the individual and combined coastal protection services supplied by live corals on reefs, seagrass meadows, and mangrove...
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Full Text:: and Forest Sciences, University of Washington, Seattle, WA, United States of America, 3 College of

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...
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Full Text:: State University, Hatfield Marine Science Center, 2030 Marine Science Drive, Newport, OR 97365, USA a r

Diet variability of forage fishes in the Northern California Current System

Creator:: Hill, Andrew D., Daly, Elizabeth A., and Brodeur, Richard D.
Abstract:: As fisheries management shifts to an ecosystem-based approach, understanding energy pathways and trophic relationships in the Northern California Current (NCC) will become increasingly important for predictive modeling and understanding ecosystem response to changing ocean conditions. In the NCC, pelagic forage fishes are a critical link between seasonal and interannual variation...
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Full Text:: , Washington, D.C., p. 108. R. Development Core Team, 2012. R: A Language and Environment for Statistical

The Cascadia Initiative: A Sea Change In Seismological Studies of Subduction Zones

Creator:: Toomey, Douglas R., Allen, Richard M., Barclay, Andrew H., Dziak, Robert P., Tréhu, Anne M., Bell, Samuel W., Bromirski, Peter D., Carlson, Richard L., Chen, Xiaowei, Collins, John A., Evers, Brent, Forsyth, Donald W., Gerstoft, Peter, Hooft, Emilie E. E., Livelybrooks, Dean, Lodewyk, Jessica A., Luther, Douglass S., McGuire, Jeffrey J., Schwartz, Susan Y., Tolstoy, Maya, Weirathmueller, Michelle, and Wilcock, William S. D.
Abstract:: Increasing public awareness that the Cascadia subduction zone in the Pacific Northwest is capable of great earthquakes (magnitude 9 and greater) motivates the Cascadia Initiative, an ambitious onshore/offshore seismic and geodetic experiment that takes advantage of an amphibious array to study questions ranging from megathrust earthquakes, to volcanic arc structure,...
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Full Text:: frontiers for marine science. The new technology—shielded ocean bottom seismometers—is allowing more

Fine-scale planktonic habitat partitioning at a shelf-slope front revealed by a high-resolution imaging system

Creator:: Greer, Adam T., Cowen, Robert K., Guigand, Cedric M., and Hare, Jonathan A.
Abstract:: Ocean fronts represent productive regions of the ocean, but predator-prey interactions within these features are poorly understood partially due to the coarse-scale and biases of net-based sampling methods. We used the In Situ Ichthyoplankton Imaging System (ISIIS) to sample across a front near the Georges Bank shelf edge on two...
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Full Text:: Hatfield Marine Science Center, Oregon State University, 2030 SE Marine Science Drive, Newport, OR 97365

Coastal paleogeography of the California-Oregon-Washington and Bering Sea continental shelves during the latest Pleistocene and Holocene: implications for the archaeological record

Creator:: Clark, Jorie, Mitrovica, Jerry X., and Alder, Jay
Abstract:: Sea-level rise during the last deglaciation and through the Holocene was influenced by deformational, gravitational, and rotational effects (henceforth glacial isostatic adjustment, GIA) that led to regional departures from eustasy. Deglacial sea-level rise was particularly variable spatially in areas adjacent to the Cordilleran and Laurentide Ice Sheets. Such regional variability...
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Full Text:: : implications for the archaeological record Coastal paleogeography of the California-Oregon-Washington and

Eruption of South Sarigan Seamount, Northern Mariana Islands: Insights into Hazards from Submarine Volcanic Eruptions

Creator:: Embley, Robert W., Tamura, Yoshihiko, Merle, Susan G., Sato, Tomoki, Ishizuka, Osamu, Chadwick, William W. Jr., Wiens, Douglas A., Shore, Patrick, and Stern, Robert J.
Abstract:: The eruption of South Sarigan Seamount in the southern Mariana arc in May 2010 is a reminder of how little we know about the hazards associated with submarine explosive eruptions or how to predict these types of eruptions. Monitored by local seismometers and distant hydrophones, the eruption from ~ 200...
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Full Text:: advisory statement for air traffic from the Washington Volcanic Ash Advisory Center. The overlying water

Water quality criteria for an acidifying ocean: Challenges and opportunities for improvement

Creator:: Weisberg, Stephen B., Bednaršek, Nina, Feely, Richard A., Chan, Francis, Boehm, Alexandria B., Sutula, Martha, Ruesink, Jennifer L., Hales, Burke, Largier, John L., and Newton, Jan A.
Abstract:: This is PMEL Contribution 4396. Acidification has sparked discussion about whether regulatory agencies should place coastal waters on the Clean Water Act 303(d) impaired water bodies list. Here we describe scientific challenges in assessing impairment with existing data, exploring use of both pH and biological criteria. Application of pH criteria...
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Full Text:: Washington, Applied Physics Laboratory, Washington Ocean Acidification Center, Seattle, WA 98105, USA a r t i

Neoliberal Policy, Rural Livelihoods and Urban Food Security in West Africa: A Comparative Study of The Gambia, Côte d’Ivoire and Mali

Creator:: Moseley, William G., Carney, Judith, and Becker, Laurence
Abstract:: This study examines the impact of two decades of neoliberal policy reform on food production and household livelihood security in three West African countries. The rice sectors in The Gambia, Côte d’Ivoire, and Mali are scrutinized as well as cotton and its relationship to sorghum production in Mali. Although market...
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Full Text:: rice for food security and poverty reduction in Sub-Saharan Africa. African Crop Science Journal. 15

Catching the Right Wave: Evaluating Wave Energy Resources and Potential Compatibility with Existing Marine and Coastal Uses

Creator:: Kim, Choong-Ki, Toft, Jodie E., Papenfus, Michael, Verutes, Gregory, Guerry, Anne D., Ruckelshaus, Marry H., Arkema, Katie K., Guannel, Gregory, Wood, Spencer A., Bernhardt, Joanna R., Tallis, Heather, Plummer, Mark L., Halpern, Benjamin S., Pinsky, Malin L., Beck, Michael W., Chan, Francis, Chan, Kai M. A., Levin, Phil S., and Polasky, Stephen
Abstract:: Many hope that ocean waves will be a source for clean, safe, reliable and affordable energy, yet wave energy conversion facilities may affect marine ecosystems through a variety of mechanisms, including competition with other human uses. We developed a decision-support tool to assist siting wave energy facilities, which allows the...
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Full Text:: , Canada, 5 NOAA Northwest Fisheries Science Center, Seattle, Washington, United States of America, 6

Genetic Diversity and Population Parameters of Sea Otters, Enhydra lutris, before Fur Trade Extirpation from 1741–1911

Creator:: Larson, Shawn, Jameson, Ron, Etnier, Michael, Jones, Terry, and Hall, Roberta
Abstract:: All existing sea otter, Enhydra lutris, populations have suffered at least one historic population bottleneck stemming from the fur trade extirpations of the eighteenth and nineteenth centuries. We examined genetic variation, gene flow, and population structure at five microsatellite loci in samples from five pre-fur trade populations throughout the sea...
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Full Text:: , Washington, United States of America, 2 Western Ecological Research Center, United States Geologic Survey

Seasonal cycle of surface ocean pCO₂ on the Oregon shelf

Creator:: Evans, Wiley, Hales, Burke, and Strutton, Peter G.
Abstract:: Previous work has shown that the Oregon shelf is a sink for atmospheric carbon dioxide (CO₂) during the upwelling season; however, until now, summertime variability in CO₂ exchange and sign of the flux for the rest of the year were unknown. Observations of the partial pressure of CO₂ (pCO₂) in...
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Full Text:: m−2 yr−1. These data showed, for the first time, the seasonal cycle of surface ocean pCO2 on the

Marine Protected Area Networks: Assessing Whether the Whole Is Greater than the Sum of Its Parts

Creator:: Grorud-Colvert, Kirsten, Claudet, Joachim, Tissot, Brian N., Caselle, Jennifer, E., Carr, Mark H., Day, Jon C., Friedlander, Alan M., Lester, Sarah E., Lison de Loma, Thierry, Malone, Daniel, and Walsh, William J.
Abstract:: Anthropogenic impacts are increasingly affecting the world’s oceans. Networks of marine protected areas (MPAs) provide an option for increasing the ecological and economic benefits often provided by single MPAs. It is vital to empirically assess the effects of MPA networks and to prioritize the monitoring data necessary to explain those...
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Full Text:: Conservation Congress in Washington, D.C. JC would like to thank EU FP7 COCONET and biodivERsA BUFFER for

Evaluation of a present-day climate simulation with a new coupled atmosphere-ocean model GENMOM

Creator:: Alder, J. R., Hostetler, S. W., Pollard, D., and Schmittner, A.
Abstract:: We present a new, non-flux corrected AOGCM, GENMOM, that combines the GENESIS version 3 atmospheric GCM (Global Environmental and Ecological Simulation of Interactive Systems) and MOM2 (Modular Ocean Model version 2) nominally at T31 resolution. We evaluate GENMOM by comparison with reanalysis products (e.g., NCEP2) and three models used in...
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Full Text:: in 1989 at the National Center for Atmo- spheric Research (NCAR) with a focus on linking terrestrial

Understanding the informal science education landscape: An exploratory study

Creator:: Falk, John H., Randol, Scott, and Dierking, Lynn D.
Abstract:: This study investigated the informal science education (ISE) field to determine whether it currently functions as an effective community of practice. Research questions included: How do professionals describe and self-identify their practice, including what missions, goals and motivating factors influence their professional work? What challenges do they face and how...
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Full Text:: these interviews and our colleagues at the Center for the Advancement of Informal Science Education

Reconstructing Velocities of Migrating Birds from Weather Radar – A Case Study in Computational Sustainability

Creator:: Farnsworth, Andrew, Sheldon, Daniel, Geevarghese, Jeffrey, Irvine, Jed, Van Doren, Benjamin, Webb, Kevin, Dietterich, Thomas G., and Kelling, Steve
Abstract:: Bird migration occurs at the largest of global scales, but monitoring such movements can be challenging. In the US there is an operational network of weather radars providing freely accessible data for monitoring meteorological phenomena in the atmosphere. Individual radars are sensitive enough to detect birds, and can provide insight...
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Full Text:: its potential for science and conservation. We describe recent work on an AI system to quantify bird

Seeing the Oceans in the Shadow of Bergen Values

Creator:: Hamblin, Jacob Darwin
Abstract:: Although oceanographers such as Roger Revelle are typically associated with key indicators of anthropogenic change, he and other scientists at midcentury had very different scientific priorities and ways of seeing the oceans. How can we join the narrative of the triumph of mathematical, dynamic oceanography with the environmental narrative? Dynamic...
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Full Text:: global carbon-cycle research. After leaving Scripps, Revelle moved in 1964 to Harvard’s Center for

Predation on an Upper Trophic Marine Predator, the Steller Sea Lion: Evaluating High Juvenile Mortality in a Density Dependent Conceptual Framework

Creator:: Horning, Markus and Mellish, Jo-Ann E.
Abstract:: The endangered western stock of the Steller sea lion (Eumetopias jubatus) - the largest of the eared seals - has declined by 80% from population levels encountered four decades ago. Current overall trends from the Gulf of Alaska to the Aleutian Islands appear neutral with strong regional heterogeneities. A published...
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Full Text:: Station, Newport, Oregon, United States of America, 3 Alaska SeaLife Center, Seward, Alaska, United States

Low Susceptibility of Invasive Red Lionfish (Pterois volitans) to a Generalist Ectoparasite in Both Its Introduced and Native Ranges

Creator:: Sikkel, Paul C., Tuttle, Lillian J., Cure, Katherine, Coile, Ann Marie, and Hixon, Mark A.
Abstract:: Escape from parasites in their native range is one of many mechanisms that can contribute to the success of an invasive species. Gnathiid isopods are blood-feeding ectoparasites that infest a wide range of fish hosts, mostly in coral reef habitats. They are ecologically similar to terrestrial ticks, with the ability...
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Full Text:: MacLean Marine Science Center (St. Thomas) for logistical support and use of their facilities. We also

A new mechanism for Dansgaard-Oeschger cycles

Creator:: Petersen, S. V., Schrag, D. P., and Clark, P. U.
Abstract:: We present a new hypothesis to explain the millennial-scale temperature variability recorded in ice cores known as Dansgaard-Oeschger (DO) cycles. We propose that an ice shelf acted in concert with sea ice to set the slow and fast timescales of the DO cycle, respectively. The abrupt warming at the onset...
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Full Text:: University Center for the Environment. The authors thank Eli Tziperman, David Battisti, Chris Charles, and

Elicited preferences for components of ocean health in the California Current

Creator:: Halpern, Benjamin S., Longo, Catherine, McLeod, Karen L., Cooke, Roger, Fischhoff, Baruch, Samhouri, Jameal F., and Scarborough, Courtney
Abstract:: As resource management efforts move towards more comprehensive approaches that spin multiple sectors and stakeholder groups, decision makers are faced with the challenge of deciding how important each group is, and how much weight their concerns should have, when making decisions. These decisions must be made transparently if they are...
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Full Text:: society. Washington, DC; National Academies Press; 1996. Elicited preferences for components of ocean

Securing ocean benefits for society in the face of climate change

Creator:: Ruckelshaus, M., Doney, S. C., Galindo, H. M., Barry, J. P., Chan, F., Duffy, J. E., English, C. A., Gaines, S. D., Grebmeier, J. M., Hollowed, A. B., Knowlton, N., Polovina, J., Rabalais, N. N., Sydeman, W. J., and Talley, L. D.
Abstract:: Benefits humans rely on from the ocean - marine ecosystem services - are increasingly vulnerable under future climate. This paper reviews how three valued services have, and will continue to, shift under climate change: (1) capture fisheries, (2) food from aquaculture, and (3) protection from coastal hazards such as storms...
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Full Text:: , University of Maryland Center for Environmental Science, Solomons, MD 20688, United States j Alaska Fisheries

The great 2012 Arctic Ocean summer cyclone enhanced biological productivity on the shelves

Creator:: Zhang, Jinlun, Ashjian, Carin, Campbell, Robert, Hill, Victoria, Spitz, Yvette H., and Steele, Michael
Abstract:: A coupled biophysical model is used to examine the impact of the great Arctic cyclone of early August 2012 on the marine planktonic ecosystem in the Pacific sector of the Arctic Ocean (PSA). Model results indicate that the cyclone influences the marine planktonic ecosystem by enhancing productivity on the shelves...
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Full Text:: downwelling shortwave radia- tion following Parkinson and Washington [1979]. Initial conditions for the BIOMAS

Deeply dredged submarine HIMU glasses from the Tuvalu Islands, Polynesia: Implications for volatile budgets of recycled oceanic crust

Creator:: Jackson, M. G., Koga, K. T., Price, A., Koppers, A. A. P., Finlayson, V. A., Konrad, K., Hauri, E. H., Kylander-Clark, A., Kelley, K. A., and Kendrick, M. A.
Abstract:: Ocean island basalts (OIB) with extremely radiogenic Pb-isotopic signatures are melts of a mantle component called HIMU (high µ, high ²³⁸U/²⁰⁴Pb). Until now, deeply dredged submarine HIMU glasses have not been available, which has inhibited complete geochemical (in particular, volatile element) characterization of the HIMU mantle. We report major, trace...
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Full Text:: the most extreme HIMU compositions found in the ocean basins. Therefore, the field for the freshest

Don Juan Pond, Antarctica: Near-surface CaCl2-brine feeding Earth’s most saline lake and implications for Mars

Creator:: Dickson, James L., Head, James W., Levy, Joseph S., and Marchant, David R.
Abstract:: The discovery on Mars of recurring slope lineae (RSL), thought to represent seasonal brines, has sparked interest in analogous environments on Earth. We report on new studies of Don Juan Pond (DJP), which exists at the upper limit of ephemeral water in the McMurdo Dry Valleys (MDV) of Antarctica, and...
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Full Text:: , Washington, D.C., 161–184 (1981). 14. Wilson, A. T. Geochemical problems of the Antarctic dry areas. Nature

Periglacial debris-flow initiation and susceptibility and glacier recession from imagery, airborne LiDAR, and ground-based mapping

Creator:: Lancaster, Stephen T., Nolin, Anne W., Copeland, Elizabeth A., and Grant, Gordon E.
Abstract:: Climate changes in the Pacific Northwest, USA, may cause both retreat of alpine glaciers and increases in the frequency and magnitude of storms delivering rainfall at high elevations absent significant snowpack, and both of these changes may affect the frequency and severity of destructive debris flows initiating on the region's...
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Full Text:: . Lancaster1,*, Anne W. Nolin1, Elizabeth A. Copeland1, and Gordon E. Grant2 1College of Earth, Ocean, and

Prey-mediated behavioral responses of feeding blue whales in controlled sound exposure experiments

Creator:: Friedlaender, A. S., Hazen, E. L., Goldbogen, J. A., Stimpert, A. K., Calambokidis, J., and Southall, B. L.
Abstract:: Behavioral response studies provide significant insights into the nature, magnitude, and consequences of changes in animal behavior in response to some external stimulus. Controlled exposure experiments (CEEs) to study behavioral response have faced challenges in quantifying the importance of and interaction among individual variability, exposure conditions, and environmental covariates. To...
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Full Text:: and Wildlife, Marine Mammal Institute, Hatfield Marine Science Center, Oregon State University, 2030

Geochemical evidence in the northeast Lau Basin for subduction of the Cook-Austral volcanic chain in the Tonga Trench

Creator:: Price, Allison A., Jackson, Matthew G., Blichert-Toft, Janne, Blusztajn, Jerzy, Conatser, Christopher S., Konter, Jasper G., Koppers, Anthony A. P., and Kurz, Mark D.
Abstract:: Lau Basin basalts host an array of geochemical signatures that suggest incorporation of enriched mantle source material often associated with intraplate hotspots, but the origin of these signatures remain uncertain. Geochemical signatures associated with mantle material entrained from the nearby Samoan hotspot are present in northwest Lau Basin lavas, and...
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Full Text:: , Oregon, USA, 5Department of Geology and Geophysics, School of Ocean and Earth Science and Technology

Red Waters of Myrionecta rubra are Biogeochemical Hotspots for the Columbia River Estuary with Impacts on Primary/Secondary Productions and Nutrient Cycles

Creator:: Herfort, Lydie, Peterson, Tawnya D., Prahl, Fredrick G., McCue, Lee Ann, Needoba, Joseph A., Crump, Byron C., Roegner, G. Curtis, Campbell, Victoria, and Zuber, Peter
Abstract:: The localized impact of blooms of the mixotrophic ciliate Myrionecta rubra in the Columbia River estuary during 2007-2010 was evaluated with biogeochemical, light microscopy, physiological, and molecular data. M. rubra affected surrounding estuarine nutrient cycles, as indicated by high and low concentrations of organic nutrients and inorganic nitrogen, respectively, associated...
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Full Text:: Center for Environmental Science, 2020 Horns Point Rd, Cambridge, MA 21613, USA G. C. Roegner NOAA

Obstacles and Opportunities of Using a Mobile App for Marine Mammal Research

Creator:: Hann, Courtney H. and Stelle, Lei Lani
Abstract:: This study investigates the use of a mobile application, Whale mAPP, as a citizen science tool for collecting marine mammal sighting data. In just over three months, 1261 marine mammal sightings were observed and recorded by 39 citizen scientists in Southeast Alaska. The resulting data, along with a preliminary and...
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Full Text:: Szabo 3 and Leigh G. Torres 4 1 College of Earth Ocean and Atmospheric Science, Oregon State University

Controls on long-term low explosivity at andesitic arc volcanoes: Insights from Mount Hood, Oregon

Creator:: Koleszar, Alison M., Kent, Adam J. R., Wallace, Paul J., and Scott, William E.
Abstract:: The factors that control the explosivity of silicic volcanoes are critical for hazard assessment, but are often poorly constrained for specific volcanic systems. Mount Hood, Oregon, is a somewhat atypical arc volcano in that it is characterized by a lack of large explosive eruptions over the entire lifetime of the...
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Full Text:: : alison.koleszar@geo.oregonstate.edu, ph: 1-315-430-5834, fax: 1-541-737-1200, College of Earth, Ocean, and

Superensemble regional climate modeling for the western United States

Creator:: Mote, Philip W., Allen, Myles R., Jones, Richard G., Li, Sihan, Mera, Roberto, Rupp, David E., Salahuddin, Ahmed, and Vickers, Dean
Abstract:: Computing resources donated by volunteers have generated the first superensemble of regional climate model results, in which the Hadley Centre Regional Model, version 3P (HadRM3P), and Hadley Centre Atmosphere Model, version 3P (HadAM3P), were implemented for the western United States at 25-km resolution. Over 136,000 valid and complete 1-yr runs...
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Full Text:: AFFILIATIONS: MeRA—Union of Concerned Scien- tists, Washington, D.C.; sAlAhuddin And vickeRs—Unaffiliated

Species and Life History Affect the Utility of Otolith Chemical Composition for Determining Natal Stream of Origin for Pacific Salmon

Creator:: Zimmerman, Christian E., Swanson, Heidi K., Volk, Eric C., and Kent, Adam J. R.
Abstract:: To test the utility of otolith chemical composition as a tool for determining the natal stream of origin for salmon, we examined water chemistry and otoliths of juvenile and adult Chum Salmon Oncorhynchus keta and Coho Salmon O. kisutch from three watersheds (five rivers) in the Norton Sound region of...
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Full Text:: . Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, Alaska 99508, USA Heidi K

Origin of volcanic seamounts at the continental margin of California related to changes in plate margins

Creator:: Davis, A. S., Clague, D. A., Paduan, J. B., Cousens, B. L., and Huard, J.
Abstract:: Volcanic samples collected with the Monterey Bay Aquarium Research Institute's ROV Tiburon from eight seamounts at the continental margin offshore central to southern California comprise a diverse suite of mainly alkalic basalt to trachyte but also include rare tholeiitic basalt and basanite. All samples experienced complex crystal fractionation probably near...
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Full Text:: model for the origin of ocean island volcanoes. The ones offshore Califor- nia are complex, elongated

Environmental Value Considerations in Public Attitudes About Alternative Energy Development in Oregon and Washington

Creator:: Steel, Brent S., Pierce, John C., Warner, Rebecca L., and Lovrich, Nicholas P.
Abstract:: The 2013 Pacific Coast Action Plan on Climate and Energy signed by the Governors of California, Oregon and Washington and the Premier of British Columbia, launched a broadly announced public commitment to reduce greenhouse gas emissions through multiple strategies. Those strategies include the development and increased use of renewable energy...
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Full Text:: 97331, USA rwarner@oregonstate.edu Nicholas P. Lovrich Political Science Washington State

Landscape characteristics and coho salmon (Oncorhynchus kisutch) distributions: explaining abundance versus occupancy

Creator:: Steel, E. A., Jensen, D. W., Burnett, K. M., Christiansen, K., Firman, J. C., Feist, B. E., Anlauf, K. J., and Larsen, D. P.
Abstract:: Distribution of fishes, both occupancy and abundance, is often correlated with landscape-scale characteristics (e.g., geology, climate, and human disturbance). Understanding these relationships is essential for effective conservation of depressed populations. We used landscape characteristics to explain the distribution of coho salmon (Oncorhynchus kisutch) in the Oregon Plan data set, one...
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Full Text:: Fisheries Science Center, NOAA Fisheries, Seattle, WA 98112, USA. K.M Burnett and K. Christiansen. USDA

Correction of deposit ages for inherited ages of charcoal: implications for sediment dynamics inferred from random sampling of deposits on headwater valley floors

Creator:: Frueh, W. Terry and Lancaster, Stephen T.
Abstract:: Inherited age is defined herein as the difference between times of carbon fixation in a material and deposition of that material within sediments from which it is eventually sampled in order to estimate deposit age via radiocarbon dating. Inheritance generally leads to over-estimation of the age by an unknown amount...
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Full Text:: Correction of deposit ages for inherited ages of

Historical evolution of the Columbia River littoral cell

Creator:: Kaminsky, George M., Ruggiero, Peter, Buijsman, Maarten, McCandless, Diana, and Gelfenbaum, Guy
Abstract:: This paper details the historical coastal evolution of the Columbia River littoral cell in the Pacific Northwest of the United States. Geological data from A.D. 1700 and records leading up to the late 1800s provide insights to the natural system dynamics prior to significant human intervention, most notably jetty construction...
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Full Text:: Issue on the Southwest Washington Coastal Erosion Study 1Washington State Department of

Satellite views of Pacific chlorophyll variability: comparisons to physical variability, local versus nonlocal influences and links to climate indices

Creator:: Thomas, Andrew C., Strub, P. Ted, Weatherbee, Ryan A., and James, Corinne
Abstract:: Concurrent satellite-measured chlorophyll (CHL), sea surface temperature (SST), sea level anomaly (SLA) and model-derived wind vectors from the 13+ year SeaWiFS period September 1997 – December 2010 quantify time and space patterns of phytoplankton variability and its links to physical forcing in the Pacific Ocean. The CHL fields are a...
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Full Text:: availability in the upper ocean, SLA is a proxy for pycnocline depths and surface currents while vector winds

Effect of forecast skill on management of the Oregon coast coho salmon (Oncorhynchus kisutch) fishery

Creator:: Rupp, David E., Wainwright, Thomas C., and Lawson, Peter W.
Abstract:: Better fisheries management is often given as one justification for research on improving forecasts of fish survival. However, the value gained from expected improvements in forecast skill in terms of achieving management goals is rarely quantified as part of research objectives. Using Monte Carlo simulations of population dynamics, we assessed...
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Full Text:: for research on improving forecasts of fish sur- vival. However, the value gained from expected

A fluid-mechanics based classification scheme for surface transient storage in riverine environments: quantitatively separating surface from hyporheic transient storage

Creator:: Jackson, T. R., Haggerty, R., and Apte, Sourabh V.
Abstract:: Surface transient storage (STS) and hyporheic transient storage (HTS) have functional significance in stream ecology and hydrology. Currently, tracer techniques couple STS and HTS effects on stream nutrient cycling; however, STS resides in localized areas of the surface stream and HTS resides in the hyporheic zone. These contrasting environments result...
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Full Text:: pen A ccess Hydrology and Earth System Sciences O pen A ccess Discussions Ocean Science O pen

Scale-dependent detection of the effects of harvesting a marine fish population

Creator:: Bartolino, Valerio, Ciannelli, Lorenzo, Spencer, Paul, Wilderbuer, Thomas K., and Chan, Kung-Sik
Abstract:: Certain ecological processes dominate others at particular scales, and the response of populations to exogenous and endogenous forces are typically scale dependent. In spite of this central role played by scale, the temporal and spatial scales of human impacts on ecosystems and populations remain almost unknown. We applied a multiscale...
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Full Text:: Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA 4Alaska Fisheries Science Center

cBathy Bathymetry Estimation in the Mixed Wave-Current Domain of a Tidal Estuary

Creator:: Holman, Rob and Stanley, John
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Coastal Education and Research Foundation (CERF) and can be found at: https://doi.org/10.2112/SI65-235.1
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Full Text:: Wave-Current Domain of a Tidal Estuary. Rob Holman and John Stanley College of Earth, Ocean and

Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, Atmospheric Composition and Volcanism in the North Pacific Region

Creator:: Zdanowicz, Christian, Fisher, David, Bourgeois, Jocelyne, Yalcin, Demuth, Mike, Zheng, James, Mayweski, Paul, Kreutz, Karl, Osterberg, ERich, Yalcin, Kaplan, Wake, Cameron, Steig, Eric J., Froese, Duane, and Goto-Azuma, Kumiko
Abstract:: A major achievement in research supported by the Kluane Lake Research Station was the recovery, in 2001–02, of a suite of cores from the icefields of the central St. Elias Mountains, Yukon, by teams of researchers from Canada, the United States, and Japan. This project led to the development of...
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Full Text:: Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, Atmospheric

Ichthyoplankton distribution and abundance in relation to nearshore dissolved oxygen levels and other environmental variables within the Northern California Current System

Creator:: Johnson-Colegrove, Angela, Ciannelli, Lorenzo, and Brodeur, Richard D.
Abstract:: Nearshore hypoxia along the coast of Oregon and Washington is a seasonal phenomenon that has generated concern among scientists studying this temperate upwelling ecosystem. These waters are affected by coastal upwelling-induced hypoxia mainly during late summer and fall, but the effects of low oxygen levels on fish and invertebrate communities,...
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Full Text:: University, Corvallis, OR 97331, U.S.A. 2Northwest Fisheries Science Center, National Oceanic and

Anomalous transient uplift observed at the Lop Nor, China nuclear test site using satellite radar interferometry time-series analysis

Creator:: Vincent, P., Buckley, S. M., Yang, D., and Carle, S. F.
Abstract:: Anomalous uplift is observed at the Lop Nor, China nuclear test site using ERS satellite SAR data. Using an InSAR time‐series analysis method, we show that an increase in absolute uplift with time is observed between 1997 and 1999. The signal is collocated with past underground nuclear tests. Due to...
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Full Text:: . Nuclear blast was test for new Chinese ICBM. The Washington Times, May 23, 1992, Washington, D.C

Evaluating tradeoffs among ecosystem services to inform marine spatial planning

Creator:: Lester, Sarah E., Costello, Christopher, Halpern, Benjamin S., Gaines, Steven D., White, Crow, and Barth, John A.
Abstract:: A central challenge for natural resource management is developing rigorous yet practical approaches for balancing the costs and benefits of diverse human uses of ecosystems. Economic theory has a long history of evaluating tradeoffs in returns from different assets to identify optimal investment strategies. There has been recent progress applying...
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Full Text:: statement on 405 marine ecosystem-based management. Washington D.C.: Communication Partnership for 406

Per capita invasion probabilities: an empirical model to predict rates of invasion via ballast water

Creator:: Reusser, Deborah A., Lee, Henry II, Frazier, Melanie, Ruiz, Gregory M., Fofonoff, Paul W., Minton, Mark S., and Miller, Whitman
Abstract:: Ballast water discharges are a major source of species introductions into marine and estuarine ecosystems. To mitigate the introduction of new invaders into these ecosystems, many agencies are proposing standards that establish upper concentration limits for organisms in ballast discharge. Ideally, ballast discharge standards will be biologically defensible and adequately...
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Full Text:: Survey, Western Fisheries Research Center and Oregon State University, 2111 SE Marine Science Drive

The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin

Creator:: Kim, Ji-Hoon, Torres, Marta E., Haley, Brian A., Kastner, Miriam, Pohlman, John W., Riedel, Michael, and Lee, Young-Joo
Abstract:: Analytical challenges in obtaining high quality measurements of rare earth elements (REEs) from small pore fluid volumes have limited the application of REEs as deep fluid geochemical tracers. Using a recently developed analytical technique, we analyzed REEs from pore fluids collected from Sites U1325 and U1329, drilled on the northern...
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Full Text:: Survey, Woods Hole Coastal & Marine Science Center, 384 Woods Hole Rd, Woods Hole, MA 02543, USA e

The Nature, Theory, and Modeling of Atmospheric Planetary Boundary Layers

Creator:: Baklanov, Alexander A., Grisogono, Branko, Bornstein, Robert, Mahrt, Larry, Zilitinkevich, Sergej S., Taylor, Peter, Larsen, Soren E., Rotach, Mathias W., and Fernando, H. J. S.
Abstract:: No Abstract Available.
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Full Text:: Meteorology and Climate Science, One Washington Square, San Jose, CA 95192-0104 E-mail: pblmodel@hotmail.com

Marine Geomorphology in the Design of Marine Reserve Networks

Creator:: Heyman, William D. and Wright, Dawn J.
Abstract:: Marine environments, key life-support systems for the earth, are under severe threat. Issues associated with managing these common property resources are complex and interrelated. Networks of marine reserves can be valuable for mitigating threats to marine systems, yet the successful design and implementation of such networks has been limited. Efficient...
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Full Text:: national boundaries). Their article articulates the need for large scale ocean zoning based on

The United States' Next Generation of Atmospheric Composition and Coastal Ecosystem Measurements: NASA's Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission

Creator:: Fishman, J., Iraci, L. T., Al-Saadi, J., Chance, K., Chavez, F., Chin, M., Coble, P., Davis, C., DiGiacomo, P. M., Edwards, D., Eldering, A., Goes, J., Herman, J., Hu, C., Jacob, D. J., Jordan, C., Kawa, S. R., Key, R., Liu, X., Lohrenz, S., Mannino, A., Natraj, V., Neil, D., Neu, J., Newchurch, M., Pickering, K., Salisbury, J., Sosik, H., Subramaniam, A., Tzortziou, M., Wang, J., and Wang, M.
Abstract:: The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission was recommended by the National Research Council's (NRC's) Earth Science Decadal Survey to measure tropospheric trace gases and aerosols and coastal ocean phytoplankton, water quality, and biogeochemistry from geostationary orbit, providing continuous observations within the field of view. To fulfill the...
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Full Text:: Ames Research Center, Moffett Field, California; aL-saadi—NASA, Washington, D.C., and NASA Langley

Functional responses and scaling in predator–prey interactions of marine fishes: contemporary issues and emerging concepts

Creator:: Hunsicker, Mary E., Ciannelli, Lorenzo, Bailey, Kevin Mclean, Buckel, Jeffrey A., White, J. Wilson, Link, Jason S., Essington, Timothy E., Gaichas, Sarah, Anderson, Todd W., Brodeur, Richard D., Chan, Kung-Sik, Chen, Kun, Englund, Goran, Frank, Kenneth T., Freitas, Vania, Hixon, Mark A., Hurst, Thomas, Johnson, Darren W., Kitchell, James F., Reese, Doug, Rose, George A., Sjodin, Henrik, Sydeman, William J., van der Veer, Henk W., Vollset, Knut, and Zador, Stephani
Abstract:: Predatorprey interactions are a primary structuring force vital to the resilience of marine communities and sustainability of the worlds oceans. Human influences on marine ecosystems mediate changes in species interactions. This generality is evinced by the cascading effects of overharvesting top predators on the structure and function of marine ecosystems....
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Full Text:: 97331, USA 2NOAA Fisheries, Alaska Fisheries Science Center, Seattle, WA 98115, USA 3Department of

The Politics of Marginality in Wallowa County, Oregon: Contesting the Production of Landscapes of Consumption

Creator:: Abrams, Jesse B. and Gosnell, Hannah
Abstract:: The state of Oregon’s (USA) land use planning framework has long been characterized by tensions between state and local authority, between traditionally-defined “urban” and “rural” concerns, and between the competing interests of various landowners. An examination of Wallowa County, Oregon’s implementation of House Bill 3326, a 2001 law giving counties...
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Full Text:: ., 2003. Community forestry: learning from the past, crafting the future. Island Press, Washington, D.C

Hypersaline “wet patches” in Taylor Valley, Antarctica

Creator:: Levy, Joseph S., Fountain, Andrew G., Welch, Kathy A., and Lyons, W. Berry
Abstract:: Spatially isolated patches of soil located in Taylor Valley, McMurdo Dry Valleys, Antarctica, are sites of elevated salt content and soil moisture. During Antarctic spring, in the absence of snow melt, visibly wet (reduced albedo) patches of soil are present at the surface. The soil pore fluids are hypersaline and...
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Full Text:: ., Smithsonian Institution, Washington, D.C. Lyons, W. B., A. G. Fountain, P. T. Doran, J. C. Priscu, K. Neumann

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...
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Full Text:: observations. [14] FVCOM incorporates options for turbulence closure through the General Ocean Turbulence

Observation of playa salts as nuclei in orographic wave clouds

Creator:: Pratt, Kerri A., Twohy, Cynthia, Murphy, Shane M., Moffet, Ryan C., Heymsfield, Andrew J., Gaston, Cassandra J., DeMott, Paul J., Field, Paul R., Henn, Tobias R., Rogers, David C., Gilles, Mary K., Seinfeld, John H., and Prather, Kimberly A.
Abstract:: During the Ice in Clouds Experiment‐Layer Clouds (ICE‐L), dry lakebed, or playa, salts from the Great Basin region of the United States were observed as cloud nuclei in orographic wave clouds over Wyoming. Using a counterflow virtual impactor in series with a single‐particle mass spectrometer, sodium‐potassium‐magnesium‐calcium‐chloride salts were identified as...
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Full Text:: ] Measurements in orographic wave clouds were made aboard the National Science Foundation/National Center for

Descriptors of natural thermal regimes in streams and their responsiveness to change in the Pacific Northwest of North America

Creator:: Arismendi, Ivan, Johnson, Sherri L., Dunham, Jason B., and Haggerty, Roy
Abstract:: 1. Temperature is a major driver of ecological processes in stream ecosystems, yet the dynamics of thermal regimes remain poorly described. Most work has focused on relatively simple descriptors that fail to capture the full range of conditions that characterise thermal regimes of streams across seasons or throughout the year....
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Full Text:: , OR, U.S.A. ‡US Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR, U.S.A

Probing the Earth’s deep interior through geochemistry

Creator:: White, William M.
Abstract:: Basaltic volcanism provides a window into the Earth’s mantle. Seeing through this window requires seeing through the processes of magma genesis and evolution that distort the view. Radiogenic isotope ratios, and to a lesser extent incompatible elements and stable isotope ratios, allow us to see through these distortions and infer...
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Full Text:: for earth science. Above all, plate tectonics provide an integrated explanation for the most obvious

The effects of wildfire on the sediment yield of a coastal California watershed

Creator:: Warrick, J. A., Hatten, J. A., Pasternack, G. B., Gray, A. B., Goni, M. A., and Wheatcroft, R. A.
Abstract:: The occurrence of two wildfires separated by 31 yr in the chaparral-dominated Arroyo Seco watershed (293 km²) of California provides a unique opportunity to evaluate the effects of wildfire on suspended-sediment yield. Here, we compile discharge and suspended-sediment sampling data from before and after the fires and show that the...
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Full Text:: . Gray3, M.A. Goni4, and R.A. Wheatcroft4 1U.S. Geological Survey, Pacifi c Coastal and Marine Science

Poleward propagating subinertial alongshore surface currents off the U.S. West Coast

Creator:: Kim, Sung Yong, Cornuelle, Bruce D., Terrill, Eric J., Jones, Burt, Washburn, Libe, Moline, Mark A., Paduan, Jeffrey D., Garfield, Newell, Largier, John L., Crawford, Greg, and Kosro, P. Michael
Abstract:: The network comprising 61 high-frequency radar systems along the U.S. West Coast (USWC) provides a unique, high resolution, and broad scale view of ocean surface circulation. Subinertial alongshore surface currents show poleward propagating signals with phase speeds of O(10) and O(100–300) km d⁻¹ that are consistent with historical in situ...
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Full Text:: Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia. 5Department of

The Cobb hot spot: HIMU-DMM mixing and melting controlled by a progressively thinning lithospheric lid

Creator:: Chadwick, John, Keller, Randall, Kamenov, George, Yogodzinski, Gene, and Lupton, John
Abstract:: The Cobb Seamount Chain in the northeast Pacific basin records the composition of the Cobb hot spot for the past 33 Myr, as the migrating Juan de Fuca Ridge approached and ultimately overran it ca. 0.5 Myr ago. In this first comprehensive geochemical study of the Cobb chain, major and...
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Full Text:: Center for Elemental Mass spectrometry in the Depart- ment of Earth and Ocean Sciences, University of

Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:: Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.
Abstract:: Although there is acute concern that insect-caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand-scale simulations or individual events. This study investigates landscape- and regional-scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...
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Full Text:: University, Corvallis, Oregon 97331 USA 2College of Earth, Ocean, and Atmospheric Sciences, Oregon State

Effects of antecedent hydrologic conditions, time dependence, and climate cycles on the suspended sediment load of the Salinas River, California

Creator:: Gray, Andrew B., Pasternack, Gregory B., Watson, Elizabeth B., Warrick, Jonathan A., and Goñi, Miguel A.
Abstract:: See pdf for abstract.
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Full Text:: Shields Ave., Davis, CA 95616, USA bU.S. Geological Survey, Pacific Coastal and Marine Science Center, 400

A decade of adaptive governance scholarship: synthesis and future directions

Creator:: Chaffin, Brian C., Gosnell, Hannah, and Cosens, Barbara A.
Abstract:: Adaptive governance is an emergent form of environmental governance that is increasingly called upon by scholars and practitioners to coordinate resource management regimes in the face of the complexity and uncertainty associated with rapid environmental change. Although the term “adaptive governance” is not exclusively applied to the governance of social-ecological...
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Full Text:: AND MAJOR WORKS A Web of Science topic search for “adaptive governance” reveals that citations have

What's streamflow got to do with it? A probabilistic simulation of the competing oceanographic and fluvial processes driving extreme along-river water levels

Creator:: Serafin, Katherine A., Ruggiero, Peter, and Parker, Kai
Abstract:: Extreme water levels generating flooding in estuarine and coastal environments are often driven by compound events, where many individual processes such as waves, storm surge, streamflow, and tides coincide. Despite this, extreme water levels are typically modeled in isolated open-coast or estuarine environments, potentially mischaracterizing the true risk of flooding...
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Full Text:: developed for linking statistical simulations of ocean and river boundary conditions with a hydraulic model

Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3) —The Time-Independent Model

Creator:: Field, Edward H., Arrowsmith, Ramon J., Biasi, Glenn P., Bird, Peter, Dawson, Timothy E., Felzer, Karen R., Jackson, David D., Johnson, Kaj M., Jordan, Thomas H., Madden, Christopher, Michael, Andrew J., Milner, Kevin R., Page, Morgan T., Parsons, Tom, Powers, Peter M., Shaw, Bruce E., Thatcher, Wayne R., Weldon, Ray J., II, and Zeng, Yuehua
Abstract:: The 2014 Working Group on California Earthquake Probabilities (WGCEP14) present the time-independent component of the Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3), which provides authoritative estimates of the magnitude, location, and time-averaged frequency of potentially damaging earthquakes in California. The primary achievements have been to relax fault segmentation and...
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Full Text:: earthquakes are solved for simultaneously and from a broader range of data, using a system-level inversion

Environmental drivers and reproductive consequences of variation in the diet of a marine predator

Creator:: Gladics, Amanda J., Suryan, Robert M., Parrish, Julia K., Horton, Cheryl A., Daly, Elizabeth A., and Peterson, William T.
Abstract:: Ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects of ocean state propagating to higher trophic levels. In many regions throughout their range, common murre (Uria aalge) exhibit narrow dietary breadth in feeding chicks and therefore are vulnerable to recruitment failures of dominant prey...
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Full Text:: for the PDO from the Joint Institute for Study of the Atmosphere and Ocean, University of Washington

Morphodynamics of prograding beaches: A synthesis of seasonal- to century-scale observations of the Columbia River littoral cell

Creator:: Ruggiero, Peter, Kaminsky, George M., Gelfenbaum, Guy, and Cohn, Nicholas
Abstract:: Findings from nearly two decades of research focused on the Columbia River littoral cell (CRLC), a set of rapidly prograding coastal barriers and strand-plains in the U.S. Pacific Northwest, are synthesized to investigate the morphodynamics associated with prograding beaches. Due to a large sediment supply from the Columbia River, the...
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Full Text:: , 98504, USA c U.S. Geological Survey, Pacific Coastal and Marine Science Center, 400 Natural Bridges

Comparing Vegetation and Soils of Remnant and Restored Wetland Prairies in the Northern Willamette Valley

Creator:: Taylor, Sara M. and Santelmann, Mary V.
Abstract:: Most of the native wetland prairies once found in the Willamette Valley of Oregon, USA have been converted to agriculture, developed, or altered by disturbance and cessation of burning, especially in the northern portion of the valley. Mitigation efforts by Portland Metro and the NRCS have resulted in restoration of...
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Full Text:: native species diversity. For example, the Gotter Prairie North restoration lies at the center of the

GRACE storage-streamflow hystereses reveal the dynamics of regional watersheds

Creator:: Sproles, E. A., Leibowitz, S. G., Reager, J. T., Wigington, P. J. Jr., Famiglietti, J. S., and Patil, S. D.
Abstract:: We characterize how regional watersheds function as simple, dynamic systems through a series of hysteresis loops. These loops illustrate the temporal relationship between runoff and terrestrial water storage using measurements from NASA's Gravity Recovery and Climate Experiment (GRACE) satellites in three regional-scale watersheds (>150 000 km² ) of the Columbia...
Resource Type:: Article
Full Text:: ,*, J. S. Famiglietti5, and S. D. Patil6 1Oak Ridge Institute for Science and Technology, c/o National

Advances in Marine Ecosystem Dynamics from US GLOBEC: The Horizontal-Advection Bottom-up Forcing Paradigm

Creator:: Di Lorenzo, Emanuele, Mountain, David, Batchelder, Harold P., Bond, Nicholas, and Hofmann, Eileen E.
Abstract:: A primary focus of the US Global Ocean Ecosystem Dynamics (GLOBEC) program was to identify the mechanisms of ecosystem response to large-scale climate forcing under the assumption that bottom-up forcing controls a large fraction of marine ecosystem variability. At the beginning of GLOBEC, the prevailing bottom-up forcing hypothesis was that...
Resource Type:: Article
Full Text:: regions. However, they all modify the ocean circulation on multiyear periods, with implications for the

A Comparison of Bulk Estuarine Turnover Timescales to Particle Tracking Timescales Using a Model of the Yaquina Bay Estuary

Creator:: Lemagie, Emily P. and Lerczak, James A.
Abstract:: The ability to determine a bulk estuarine turnover timescale that is well defined under realistic conditions is in high demand for estuarine research and management. We compare how turnover timescales vary with tidal and river forcing from idealized forcing scenarios using a three-dimensional circulation model of the Yaquina Bay estuary...
Resource Type:: Article
Full Text:: increases, the exchange between the estuary and the ocean increases and τFW decreases for a given QR. All

Microbial distributions detected by an oligonucleotide microarray across geochemical zones associated with methane in marine sediments from the Ulleung Basin

Creator:: Briggs, Brandon R., Graw, Michael, Brodie, Eoin L., Bahk, Jang-Jun, Kim, Sung-Han, Hyun, Jung-Ho, Kim, Ji-Hoon, Torres, Marta, and Colwell, Frederick S.
Abstract:: The biogeochemical processes that occur in marine sediments on continental margins are complex; however, from one perspective they can be considered with respect to three geochemical zones based on the presence and form of methane: sulfate-methane transition (SMTZ), gas hydrate stability zone (GHSZ), and free gas zone (FGZ). These geochemical...
Resource Type:: Article
Full Text:: Oak Ridge Institute for Science and Education and by the Center for Dark Energy Biosphere

Intrathermocline eddies in the coastal transition zone off central Chile (31–41°S)

Creator:: Hormazabal, Samuel, Combes, Vincent, Morales, Carmen E., Correa-Ramirez, Marco A., Di Lorenzo, Emmanuel, and Nuñez, Sergio
Abstract:: The three-dimensional structure and the origin of mesoscale anticyclonic intrathermocline eddies (ITEs) in the coastal transition zone (CTZ) off central Chile (31–41°S) were analyzed through the combination of data from oceanographic cruises and satellite altimetry, and the application of an eddy-resolving primitive equation ocean model coupled with a numerical experiment...
Resource Type:: Article
Full Text:: -Resolving Ocean Modeling, 350 pp., AGU, Washington, D.C. Chaigneau, A., G. Eldin, and B. Dewitte (2009

Late Miocene erosion and evolution of topography along the western slope of the Colorado Rockies

Creator:: Rosenberg, Russell, Kirby, Eric, Aslan, Andres, Karlstrom, Karl, Heizler, Matt, and Ouimet, Will
Abstract:: In the Colorado Rocky Mountains, the association of high topography and low seismic velocity in the underlying mantle suggests that recent changes in lithospheric buoyancy may have been associated with surface uplift of the range. This paper examines the relationships among late Cenozoic fluvial incision, channel steepness, and mantle velocity...
Resource Type:: Article
Full Text:: , College of Earth, Ocean, and Atmospheric Sciences, Corvallis, 8 Oregon 97330, USA 9 3 Colorado Mesa

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