Index Catalog // ScholarsArchive@OSU

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:: presented on August 2, 2010. Title: Phosphorus Control of Nitrogen Fixation Abstract approved

Nitrogen dynamics in a coastal upwelling regime

Creator:: Dickson, Mary-Lynn
Resource Type:: Dissertation

Nitrogen isotopes in a global ocean biogeochemical model : constraints on the coupling between denitrification and nitrogen fixation

Creator:: Somes, Christopher J.
Abstract:: We present a new nitrogen isotope model incorporated into the three-dimensional ocean component of a global Earth System Climate Model designed for millennial timescale simulations. The model includes prognostic tracers for the stable nitrogen isotopes, ¹⁴N and ¹⁵N, in the nitrate (NO₃ˉ), phytoplankton, zooplankton, and detritus variables of the marine...
Resource Type:: Masters Thesis
Full Text:: presented on June 30, 2009. Title: Nitrogen Isotopes in a Global Ocean Biogeochemical Model

Submicron particulate organic nitrogen and dissolved organic nitrogen in the central equatorial Pacific

Creator:: Libby, P. Scott
Resource Type:: Masters Thesis

Nitrogen isotope simulations show the importance of atmospheric iron deposition for nitrogen fixation across the Pacific Ocean

Creator:: Somes, Christopher J., Schmittner, Andreas, and Altabet, Mark A.
Abstract:: Nitrogen (N) fixation by specialized microorganisms (diazotrophs) influences global plankton productivity because it provides the ocean with most of its bio-available N. However, its global rate and large-scale spatial distribution is still regarded with considerable uncertainty. Here we use a global ocean nitrogen isotope model, in comparison with δ15NO3 observations,...
Resource Type:: Article
Full Text:: gl044537 1..5 1 Nitrogen isotope simulations show the importance

Application of nitrogen stable isotopes to identify sources of nutrient pollution : a management tool?

Creator:: Redon, Elizabeth A.
Abstract:: Nutrient pollution may perhaps be one of the oldest water quality problems and has recently been considered as one of the greatest threats to estuarine and coastal waters. Excessive nutrient loads have had a vast array of impacts on estuarine and coastal ecosystems globally. Direct negative effects include: shading out...
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Marine Resource Management on March 14, 2001. Title: Application of Nitrogen

An investigation into nitrogen uptake by Emilania huxleyi during continuous darkness

Creator:: Royer, Ida M.
Abstract:: Experiments were conducted with two strains of the coccolithophorid Emiliania huxleyi. Previous experiments with CCMP1742 and 372 at a light intensity of 60 µEin/m²-s showed that during five-day periods of continuous darkness, strain 1742 was taking up nitrate from the media while strain 372 was not. The nitrate uptake in...
Resource Type:: Masters Thesis
Full Text:: presented on June 2, 2008. Title: An Investigation into Nitrogen Uptake by Emiliania huxleyi during

The role of dust in supplying nitrogen and phosphorus to the Southeast Mediterranean

Creator:: Herut, Barak, Collier, Robert W., and Krom, Michael D.
Abstract:: This study assesses the role of the atmospheric dry fallout as a source of new nitrogen and phosphorus to the surface Levantine seawater. Leaching experiments of inorganic nitrogen (LINO-3, LINH+4) and phosphorus (LIPO4), using SE Mediterranean surface seawater, were performed on 41 aerosol (hereafter dust) samples collected on Whatman 41...
Resource Type:: Article
Full Text:: in supplying nitrogen and phosphorus to the Southeast Mediterranean, pp 870-878 870 NOTES Limnol

Particulate and dissolved organic carbon and nitrogen data from the GLOBEC long-term observation program, 1997-2004 (revised 2012)

Creator:: Wetz, Jennifer Jarrell, Arrington, Julie, Wheeler, Patricia A., and Global Ocean Ecosystems Dynamics (Program)
Abstract:: The particulate and dissolved organic carbon and nitrogen data included in this report are a complete version of all data for GLOBEC cruises 1997-2004. The nutrient and chlorophyll data that correspond to this data set can be found in "Nutrient and Extracted Chlorophyll Data from the GLOBEC Long-Term Observation Program,...
Resource Type:: Technical Report
Full Text:: Particulate and Dissolved Organic Carbon and Nitrogen Data from the GLOBEC Long- Term Observation Program

Particulate and dissolved organic carbon and nitrogen data from the GLOBEC Long-Term Observation Program, 1997-2004

Creator:: Wetz, Jennifer Jarrell, Arrington, Julie, Wheeler, Patricia A., and Global Ocean Ecosystems Dynamics (Program)
Abstract:: The particulate and dissolved organic carbon and nitrogen data included in this report are a complete version of all data for GLOBEC cruises 1997-2004. The nutrient and chlorophyll data that correspond to this data set can be found in “Nutrient and Extracted Chlorophyll Data from the GLOBEC Long-Term Observation Program,...
Resource Type:: Technical Report
Full Text:: Carbon and Nitrogen Data from the GLOBEC Long- Term Observation Program, 1997-2004 Jennifer

ScholarsArchive@OSU

Phosphorus control of nitrogen fixation

Nitrogen dynamics in a coastal upwelling regime

Nitrogen isotopes in a global ocean biogeochemical model : constraints on the coupling between denitrification and nitrogen fixation

Submicron particulate organic nitrogen and dissolved organic nitrogen in the central equatorial Pacific

Nitrogen isotope simulations show the importance of atmospheric iron deposition for nitrogen fixation across the Pacific Ocean

Application of nitrogen stable isotopes to identify sources of nutrient pollution : a management tool?

An investigation into nitrogen uptake by Emilania huxleyi during continuous darkness

The role of dust in supplying nitrogen and phosphorus to the Southeast Mediterranean

Particulate and dissolved organic carbon and nitrogen data from the GLOBEC long-term observation program, 1997-2004 (revised 2012)

Particulate and dissolved organic carbon and nitrogen data from the GLOBEC Long-Term Observation Program, 1997-2004

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