Index Catalog // ScholarsArchive@OSU

Upper ocean water properties and currents along paired sections in the Northern California current, spring 1998-2003

Creator:: Fleischbein, Jane H., Huyer, Adriana, 1945-, Kosro, P. Michael, 1951-, Smith, Robert L. (Robert Lloyd), 1935-, Wetz, Jennifer Jarrell, and Wheeler, Patricia A.
Abstract:: As part of the U. S. GLOBEC NorthEast Pacific Program we made repeated seasonal hydrographic surveys in the northern California Current system (Figure 1) between July 1997 and September 2003. These surveys included early spring sampling along a pair of hydrographic sections, one north (at 44.6ºN) and one south (at...
Resource Type:: Technical Report
Full Text:: -2003 Jane H. Fleischbein Adriana Huyer P. Michael Kosro Robert L. Smith Jennifer

Release of dissolved organic matter by coastal diatoms

Creator:: Wetz, Michael S. and Wheeler, Patricia A.
Abstract:: Dissolved organic matter (DOM) production was examined in axenic batch cultures of five coastal diatom species. For Chaetoceros decipiens, dissolved organic carbon (DOC) accumulated beginning in late exponential growth as a result of increased cell density. For Cylindrotheca closterium, DOC actually decreased in late exponential growth and reached zero by...
Resource Type:: Article
Full Text:: Wetz, Michael S., and Patricia A. Wheeler. Release of dissolved

Response of bacteria to simulated upwelling phytoplankton blooms

Creator:: Wetz, Michael S. and Wheeler, Patricia A.
Abstract:: Until recently, studies of the fate of primary production in coastal upwelling systems have focused mainly on export through sinking of particulate organic matter (POM). In week-long deck incubations conducted during the upwelling season off Oregon, a large accumulation of carbonrich (C:N ≥ 16) dissolved organic matter (DOM) occurred following...
Resource Type:: Article
Full Text:: upwelling phytoplankton blooms Michael S. Wetz*, Patricia A. Wheeler College of Oceanic and Atmospheric

Production and partitioning of organic matter during simulated phytoplankton blooms

Creator:: Wetz, Michael S. and Wheeler, Patricia A.
Abstract:: Few studies have examined the partitioning of organic matter in upwelling systems, despite the fact that these systems play a key role in carbon and nitrogen budgets in the ocean. We examined the production and partitioning of phytoplankton-derived organic matter in deck incubations off Oregon during the upwelling season. During...
Resource Type:: Article
Full Text:: Wetz, Michael S., and Patricia A. Wheeler, Production and

Riverine input of macronutrients, iron, and organic matter to the coastal ocean off Oregon, U.S.A., during the winter

Creator:: Wetz, Michael S., Hales, Burke, Chase, Zanna, Wheeler, Patricia A., and Whitney, Michael M.
Abstract:: Three cross‐shelf transects were conducted off northern Oregon in February, 2003, coincident with flooding of Coast Range rivers, to assess the riverine impact on coastal ocean biogeochemistry. During downwelling conditions, low salinity river‐influenced water was located in a narrow band near the coast and contained elevated macronutrient, iron, and organic...
Resource Type:: Article
Full Text:: Wetz, Michael S., Burke Hales, Zanna Chase, Patricia A. Wheeler

Light-induced growth of phytoplankton collected during the winter from the benthic boundary layer off Oregon, USA

Creator:: Wetz, Michael S., Wheeler, Patricia A., and Letelier, Ricardo M.
Abstract:: Despite the importance of the spring phytoplankton bloom off Oregon as a food source for zooplankton, little is known about the sources of phytoplankton seed stock for the bloom or its timing. Experiments were conducted in the late winter to determine if the benthic boundary layer (BBL) could be a...
Resource Type:: Article
Full Text:: . During the winter months off Oregon, daylengths are short (ca. 8.5 to 9 h) and photosynthetically avail

Diel periodicity in ammonium uptake and regeneration in the oceanic subarctic Pacific: Implications for interactions in microbial food webs

Creator:: Wheeler, Patricia A., Kirchman, David L., Landry, Michael R., and Kokkinakis, Steven A.
Abstract:: Diel periodicity in NH4+ uptake and regeneration in the nutrient-rich environment of the oceanic subarctic Pacific was examined. Surface water was incubated in large shipboard microcosms that allowed repeated sampling of the planktonic community for NH4+ cycling rates, bacterial production rates, and population densities of the dominant autotrophs and heterotrophs....
Resource Type:: Article
Full Text:: WHEELER, PATRICIA A., DAVID L. KIRCHMAN, MICHAEL R. LANDRY, AND

Iron, nutrient, and phytoplankton distributions in Oregon coastal waters

Creator:: Chase, Zanna, van Geen, Alexander, Kosro, P. Michael, 1951-, Marra, John, and Wheeler, Patricia A.
Abstract:: The relationship between iron and nitrate concentrations was examined off the coast of Oregon during the upwelling season. Surface Fe and N (nitrate + nitrite) concentrations measured underway by flow injection analysis ranged from <0.3 to 20 nmol L¯¹ and <0.1 to 30 mmol L¯¹, respectively. Total dissolvable Fe concentrations,...
Resource Type:: Article
Full Text:: distributions in Oregon coastal waters Zanna Chase,1,2,3 Alexander van Geen,1 P. Michael Kosro,4 John Marra,1

Preliminary Cruise Report, W0408D and W0409A, R/V WECOMA, 30 August – 3 September and 7-9 September 2004 : GLOBEC NEP Long-Term Observations off Oregon

Creator:: Fleischbein, Jane, Huyer, Adriana, 1945-, Smith, Robert L. (Robert Lloyd), 1935-, Kosro, P. Michael, 1951-, Wheeler, Patricia A., and Peterson, W. T.
Abstract:: PURPOSE (W0408D): To determine physical, plankton and nutrient/chemical conditions over the continental margin for climate change studies in NE Pacific. In particular, to make CTD and CTD/ rosette and net tow stations along 3 lines (off Newport, Strawberry Hill and Heceta Head, OR.), and to make continuous observations of currents...
Resource Type:: Technical Report
Full Text:: NUMBER: NSF Grant OCE-0000733. PRINCIPAL INVESTIGATORS: Adriana Huyer, Robert L. Smith, P. Michael Kosro

Ecological dynamics in the subarctic Pacific, a possibly iron-limited ecosystem

Creator:: Miller, Charles B., Frost, Bruce W., Wheeler, Patricia A., Landry, Michael R., Welschmeyer, Nicholas, and Powell, Thomas M.
Abstract:: It has been suggested that production in offshore waters of the subarctic Pacific is limited by availability of dissolved Fe. Although that is not yet adequately established, the functional consequences of the limitation (if it exists) can be characterized from the results of the Subarctic Pacific Ecosystem Research (SUPER) program....
Resource Type:: Article
Full Text:: MILLER, CHARLES B., BRUCE W. FROST, PATRICIA A. WHEELER, MICHAEL

ScholarsArchive@OSU

Upper ocean water properties and currents along paired sections in the Northern California current, spring 1998-2003

Release of dissolved organic matter by coastal diatoms

Response of bacteria to simulated upwelling phytoplankton blooms

Production and partitioning of organic matter during simulated phytoplankton blooms

Riverine input of macronutrients, iron, and organic matter to the coastal ocean off Oregon, U.S.A., during the winter

Light-induced growth of phytoplankton collected during the winter from the benthic boundary layer off Oregon, USA

Diel periodicity in ammonium uptake and regeneration in the oceanic subarctic Pacific: Implications for interactions in microbial food webs

Iron, nutrient, and phytoplankton distributions in Oregon coastal waters

Preliminary Cruise Report, W0408D and W0409A, R/V WECOMA, 30 August – 3 September and 7-9 September 2004 : GLOBEC NEP Long-Term Observations off Oregon

Ecological dynamics in the subarctic Pacific, a possibly iron-limited ecosystem

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