Inferring phytoplankton carbon and eco-physiological rates from diel cycles of spectral particulate beam-attenuation coefficient Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/wh246s84h

This is the publisher’s final pdf. The published article is copyrighted by Copernicus Publications on behalf of the European Geosciences Union and can be found at:  http://www.biogeosciences.net/home.html.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The diurnal fluctuations in solar irradiance impose a fundamental frequency on ocean biogeochemistry. Observations of the ocean carbon cycle at these frequencies are rare, but could be considerably expanded by measuring and interpreting the inherent optical properties. A method is presented to analyze diel cycles in particulate beam-attenuation coefficient (c[subscript p]) measured at multiple wavelengths. The method is based on fitting observations with a size-structured population model coupled to an optical model to infer the particle size distribution and physiologically relevant parameters of the cells responsible for the measured diel cycle in c[subscript p]. Results show that the information related to size and contained in the spectral data can be exploited to independently estimate growth and loss rates during the day and night. In addition, the model can characterize the population of particles affecting the diel variability in c[subscript p]. Application of this method to spectral c[subscript p] measured at a station in the oligotrophic Mediterranean Sea suggests that most of the observed variations in c[subscript p] can be ascribed to a synchronized population of cells with an equivalent spherical diameter around 4.6±1.5 μm. The inferred carbon biomass of these cells was about 5.2–6.0 mg m⁻³ and accounted for approximately 10% of the total particulate organic carbon. If successfully validated, this method may improve our in situ estimates of primary productivity.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Dall'Olmo, G., Boss, E., Behrenfeld, M. J., Westberry, T. K., Courties, C., Prieur, L., Pujo-Pay, M., Hardman-Mountford, N., and Moutin, T.: Inferring phytoplankton carbon and eco-physiological rates from diel cycles of spectral particulate beam-attenuation coefficient, Biogeosciences, 8, 3423-3439, doi:10.5194/bg-8-3423-2011, 2011.
Academic Affiliation
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2012-06-05T17:52:26Z No. of bitstreams: 1 WestberryTKBotanyPlantPathologyInferringPhytoplanktonCarbon.pdf: 1992822 bytes, checksum: 0d4bbb3e11828a6f490e42f6bdfe3cc7 (MD5)
  • description.provenance : Made available in DSpace on 2012-06-05T17:52:59Z (GMT). No. of bitstreams: 1 WestberryTKBotanyPlantPathologyInferringPhytoplanktonCarbon.pdf: 1992822 bytes, checksum: 0d4bbb3e11828a6f490e42f6bdfe3cc7 (MD5) Previous issue date: 2011-11-28
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2012-06-05T17:52:59Z (GMT) No. of bitstreams: 1 WestberryTKBotanyPlantPathologyInferringPhytoplanktonCarbon.pdf: 1992822 bytes, checksum: 0d4bbb3e11828a6f490e42f6bdfe3cc7 (MD5)

Relationships

In Administrative Set:
Last modified: 07/11/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items