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Primary production dynamics in the North Pacific subtropical gyre

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

Seconds to hour scale photosynthetic responses in marine microalgae

Creator:: Laney, Samuel R.
Abstract:: Our view of phytoplankton has historically revolved around their inability to control their location in space. The term phytoplankton itself underscores this particular difference between phytoplankton and their sessile terrestrial counterparts. Yet there are other differences between land plants and the phytoplankton that are perhaps equally important, beyond this sessile-planktonic...
Resource Type:: Dissertation
Full Text:: Abstract approved: _____________________________________________________________________ Ricardo M

Phosphorus physiology and environmental forcing of oceanic cyanobacteria, primarily Trichodesmium spp.

Creator:: White, Angelicque E.
Abstract:: The biological transformation of dinitrogen gas (N2) into combined forms(termed N2 fixation) by certain genera of oceanic cyanobacteria represents the largest incoming flux of nitrogen to the global ocean. As such, biological nitrogen fixation plays a significant role in the regulation of oceanic productivity and the export of carbon and...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Ricardo M. Letelier Yvette H. Spitz The biological

Ion association of sodium, magnesium, and calcium with sulfate in aqueous solution

Creator:: Kester, Dana R.
Resource Type:: Dissertation
Full Text:: SODIUM, MAGNESIUM, AND CALCIUM WITH SULFATE IN AQUEOUS SOLUTION Abstract approved: Ricardo"M. Pytkowicz

Marine Nitrogen Subsidies to Terrestrial Systems: Transport Through Wrack Deposition

Creator:: Traylor, Andrew
Abstract:: Fluctuations in one system affect adjacent systems; mechanistic understanding of linkages helps conservation efforts be more effective by focusing on influential species and areas that facilitate connections between ecosystems. This study explored marine-derived nutrient inputs to adjacent terrestrial communities. We quantified wrack (seaweed and other organic matter) deposition at sites...
Resource Type:: Honors College Thesis
Full Text:: : _______________________________________________________________ Ricardo Letelier Abstract body

Phosphorus control of nitrogen fixation

Creator:: Watkins-Brandt, Katie S.
Abstract:: Under conditions of fixed N-limitation, as with most oligotrophic systems, the process of biological N₂ fixation (diazotrophy) is favored, provided the necessary trace elements and vitamins are sufficient. Despite the well understood contributions of N₂ fixation in oligotrophic regions, the nutritional and ecological controls of marine diazotrophs have not been...
Resource Type:: Masters Thesis
Full Text:: : Angelicque E. White Ricardo M. Letelier Yvette H. Spitz Under conditions of fixed N

Kinetics and equilibria of magnesian calcite in seawater-like solutions: laboratory studies

Creator:: Rushdi, Ahmed I. M.
Resource Type:: Dissertation
Full Text:: Redacted for Privacy ACKNOWLEDGEMENTS First, I would like to thank my major advisor, Ricardo Pytkowicz

Carbonate chemistry of the North Pacific Ocean

Creator:: Wei, Ching-ling
Abstract:: This thesis covers a wide area of the North Pacific Ocean, latitudinally from 10° to 55°N and longitudinally from Japan to the U.S. coast. With two longitudinal cruises as the main data sources and selected literature data sets as supplementary data source, the distribution of physical and chemical properties in...
Resource Type:: Masters Thesis

Ion association and activity coefficients in electrolyte solutions

Creator:: Johnson, Kenneth Stewart
Resource Type:: Dissertation
Full Text:: ASSOCIATION AND ACTIVITY COEFFICIENTS IN ELECTROLYTE SOLUTIONS Abstract approved: Dr. Ricardo M. Pytkowicz

The solubility of CaCO₃ in seawater and in electrolyte solutions

Creator:: Plath, David Carl
Resource Type:: Masters Thesis
Full Text:: . Johnson, and Ricardo M. Pytkov;icz School of Oceanography, Oregon State University, Corvallis, OP 97330

ScholarsArchive@OSU

Primary production dynamics in the North Pacific subtropical gyre

Seconds to hour scale photosynthetic responses in marine microalgae

Phosphorus physiology and environmental forcing of oceanic cyanobacteria, primarily Trichodesmium spp.

Ion association of sodium, magnesium, and calcium with sulfate in aqueous solution

Marine Nitrogen Subsidies to Terrestrial Systems: Transport Through Wrack Deposition

Phosphorus control of nitrogen fixation

Kinetics and equilibria of magnesian calcite in seawater-like solutions: laboratory studies

Carbonate chemistry of the North Pacific Ocean

Ion association and activity coefficients in electrolyte solutions

The solubility of CaCO₃ in seawater and in electrolyte solutions

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