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Examining temporal variations of phytoplankton photoacclimation using a novel fluorescence based approach

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dc.contributor.author Comeau, Adam J.
dc.date.accessioned 2010-09-02T13:42:44Z
dc.date.available 2010-09-02T13:42:44Z
dc.date.issued 2010-09-02
dc.identifier.uri http://hdl.handle.net/10222/13034
dc.description.abstract Models of primary production require parameters to describe photosynthesis as a function of irradiance, such as the saturation irradiance (Ek, ?mol photons m-2 s-1). However, this parameter varies in both time and space, is expensive to measure, and its variability in the oceans is not well described. A novel fluorescence-based approach is presented to determine an empirical parameter (EFT, ?mol photons m-2 s-1), which is strongly correlated with Ek. This correlation provides evidence to use EFT as a proxy for Ek. Using an autonomous profiling instrument package (SeaHorseTM, located on the Scotian Shelf) and an autonomous oceanographic observational buoy (Land/Ocean Biogeochemical Observatory, located in the Northwest Arm, N.S., Canada), the variability of EFT was examined on three time scales: hours, days, and seasons. Studying variations of EFT with these autonomous instruments provided insights to its variability on time scales relevant to models of primary production. en_US
dc.language.iso en en_US
dc.subject phytoplankton en_US
dc.subject chlorophyll a fluorescence en_US
dc.title Examining temporal variations of phytoplankton photoacclimation using a novel fluorescence based approach en_US
dc.type Thesis en_US
dc.date.defence 2010-08-20
dc.contributor.department Department of Oceanography en_US
dc.contributor.degree Master of Science en_US
dc.contributor.external-examiner Dr. Mary Jane Perry en_US
dc.contributor.graduate-coordinator Dr. Dan Kelley en_US
dc.contributor.thesis-reader Dr. Katja Fennel en_US
dc.contributor.thesis-reader Dr. Keith Thompson en_US
dc.contributor.thesis-supervisor Dr. John Cullen en_US
dc.contributor.ethics-approval Not Applicable en_US
dc.contributor.manuscripts Not Applicable en_US
dc.contributor.copyright-release Not Applicable en_US

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