Index Catalog // ScholarsArchive@OSU

Evidence for regional‐scale controls on eelgrass (Zostera marina) and mesograzer community structure in upwelling‐influenced estuaries

Creator:: Hayduk, Jennifer L., Hacker, Sally D., Henderson, Jeremy S., and Tomas, Fiona
Abstract:: Community structure and function in ecosystems are dependent on top‐down and bottom‐up factors, which vary across local, regional, and temporal scales. In estuaries of the U.S. Pacific Northwest coast, eelgrass (Zostera marina) ecosystems are exposed to latitudinally varying oceanographic inputs in the form of ocean upwelling. Previous research suggests that...
Resource Type:: Article

A self-cleaning biological filter : How appendicularians mechanically control particle adhesion and removal

Creator:: Conley, Keats R., Gemmell, Brad J., Bouquet, Jean-Marie, Thompson, Eric M., and Sutherland, Kelly R.
Abstract:: Appendicularians are ubiquitous marine grazers that use tangential filtration to collect micron and submicron prey. The food-concentrating filter (FCF) is the primary determinant of appendicularian prey selectivity, but the precise means by which it concentrates and conveys particles to the pharyngeal filter remain poorly understood. We used high-speed videography to...
Resource Type:: Article

Riverine discharges impact physiological traits and carbon sources for shell carbonate in the marine intertidal mussel Perumytilus purpuratus

Creator:: Pérez, Claudia A., Lagos, Nelson A., Saldías, Gonzalo S., Waldbusser, George, and Vargas, Cristian A.
Abstract:: Anthropogenic modification watersheds and climate change have altered export from fluvial systems causing changes to the carbonate chemistry of river-influenced near shore environments. To determine the possible effects of riverine discharges on the mussel Perumytilus purpuratus, we performed in situ transplant experiments between river-influenced and open coastal habitats with contrasting...
Resource Type:: Article
Full Text:: LIMNOLOGY and OCEANOGRAPHY Limnol. Oceanogr. 61, 2016, 969–983VC 2016 Association for the Sciences of

Oxygen isotope measurements of seawater (H₂¹⁸)O/H₂¹⁶O): A comparison of cavity ring-down spectroscopy (CRDS) and isotope ratio mass spectrometry (IRMS)

Creator:: Walker, S. A., Azetsu-Scott, K., Normandeau, C,, Kelley, D. E., Friedrich, R., Newton, R., Schlosser, P., McKay, J. L., Abdi, W., Kerrigan, E., Craig, S. E., and Wallace, D. W. R.
Abstract:: Laser-based spectroscopic techniques, such as cavity ring-down spectroscopy (CRDS), provide a new, cost effective and more widely available approach to measure the oxygen isotope ratio in water molecules, H₂¹⁸O/H₂¹⁶O (δ¹⁸O), and are used increasingly to measure δ¹⁸O in the world's oceans. Here, we present results from an interlaboratory comparison designed...
Resource Type:: Article
Full Text:: Association for the Sciences of Limnology and Oceanography doi: 10.1002/lom3.10067 environments. As a

Extensive CO₂ emissions from shallow coastal waters during passage of Hurricane Irene (August 2011) over the Mid-Atlantic Coast of the U.S.A.

Creator:: Crosswell, Joseph R., Wetz, Michael S., Hales, Burke, and Paerl, Hans W.
Abstract:: Shallow coastal waters serve an important role as long-term carbon (C) sinks because they capture terrestrial C and retain internally produced C in wetlands and sediments. We show that tropical cyclones (TCs) can lead to rapid CO₂ efflux from estuaries, driven by physical and biogeochemical perturbation of these coastal C...
Resource Type:: Article
Full Text:: 10.4319/lo.2014.59.5.1651 Association for the Sciences of Limnology and Oceanography, Inc. Version of

Physicochemical and biological controls on primary and net community production across northeast Pacific seascapes

Creator:: Kavanaugh, Maria T., Emerson, Steven R., Hales, Burke, Lockwood, Deirdre M., Quay, Paul D., and Letelier, Ricardo M.
Abstract:: The subarctic-subtropical transition zone in the North Pacific represents the second largest sink of atmospheric carbon dioxide in the world ocean, yet the relative importance of physical and biological processes in this uptake is debated. In a step toward understanding the spatiotemporal variability of environmental, physiological, and ecological factors that...
Resource Type:: Article
Full Text:: Oceanography, 59(6), 2013-2027. doi:10.4319/lo.2014.59.6.2013 10.4319/lo.2014.59.6.2013 Association for the

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:: E 2013, by the Association for the Sciences of Limnology and Oceanography, Inc. doi:10.4319/lo

Microbes, macrofauna, and methane: A novel seep community fueled by aerobic methanotrophy

Creator:: Thurber, Andrew R., Levin, Lisa A., Rowden, Ashley A., Sommer, Stefan, Linke, Peter, and Kroeger, Kerstin
Abstract:: During the discovery and description of seven New Zealand methane seep sites, an infaunal assemblage dominated by ampharetid polychaetes was found in association with high seabed methane emission. This ampharetid-bed assemblage had a mean density of 57,000 ± 7800 macrofaunal individuals m⁻² and a maximum wet biomass of 274 g...
Resource Type:: Article
Full Text:: ., 58(5), 2013, 1640–1656 E 2013, by the Association for the Sciences of Limnology and Oceanography

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:: the Sciences of Limnology and Oceanography, Inc. doi:10.4319/lo.2012.57.5.1467 1467 return them to

The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near-term ocean acidification effects

Creator:: Barton, Alan, Hales, Burke, Waldbusser, George G., Langdon, Chris, and Feely, Richard A.
Abstract:: We report results from an oyster hatchery on the Oregon coast, where intake waters experienced variable carbonate chemistry (aragonite saturation state < 0.8 to > 3.2; pH < 7.6 to > 8.2) in the early summer of 2009. Both larval production and midstage growth (∼ 120 to ∼ 150 µm)...
Resource Type:: Article
Full Text:: oysters were spawned and reared for the first 48 h of life. The effects of the initial spawning conditions

ScholarsArchive@OSU

Evidence for regional‐scale controls on eelgrass (Zostera marina) and mesograzer community structure in upwelling‐influenced estuaries

A self-cleaning biological filter : How appendicularians mechanically control particle adhesion and removal

Riverine discharges impact physiological traits and carbon sources for shell carbonate in the marine intertidal mussel Perumytilus purpuratus

Oxygen isotope measurements of seawater (H₂¹⁸)O/H₂¹⁶O): A comparison of cavity ring-down spectroscopy (CRDS) and isotope ratio mass spectrometry (IRMS)

Extensive CO₂ emissions from shallow coastal waters during passage of Hurricane Irene (August 2011) over the Mid-Atlantic Coast of the U.S.A.

Physicochemical and biological controls on primary and net community production across northeast Pacific seascapes

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

Microbes, macrofauna, and methane: A novel seep community fueled by aerobic methanotrophy

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

The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near-term ocean acidification effects

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