Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Contributor advisor sim Letelier, Ricardo M. Subject Nitrogen -- Fixation

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:

Gradoville, Mary Rose

Abstract:

Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...

Resource Type:

Masters Thesis
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