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Growth and Grazing Mortality of Pico- and Nano-Phytoplankton and Their Role in the Carbon Export in the Sargasso Sea


Abstract The ocean sequesters more than 25% of the carbon released by anthropogenic action every year, and oligotrophic oceans, such as the Sargasso Sea, are responsible for about 50% of the global carbon export. Pico- and nano-phytoplankton (cells < 5 µm), mostly unicellular eukaryotes (protists) and cyanobacteria, dominate the primary production in the Sargasso Sea; however, little is known about their contribution to the export of carbon into the deep ocean via sinking particles. The overall goal of this study is to examine the link between growth and grazing rates of pico- and nano-phytoplankton and the carbon export in the Sargasso Sea. I investigate three aspects: 1) how microzooplankton grazing and physical forcing affect taxon-specific pr... (more)
Created Date 2016
Contributor De Martini, Francesca (Author) / Neuer, Susanne (Advisor) / Garcia-Pichel, Ferran (Committee member) / Hartnett, Hilairy (Committee member) / Lomas, Michael (Committee member) / Arizona State University (Publisher)
Subject Biological oceanography
Type Doctoral Dissertation
Extent 187 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Natural Science 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis