Light Harvesting in Unialgal Blooms

  • N. B. Nelson
  • B. B. Prézelin
Part of the Environmental Science Research book series (ESRH, volume 43)

Abstract

We developed a model for spectral light absorption coefficients of dinoflagellate cell suspensions based on mean cell dimensions, cellular pigment concentrations, and known pigment-protein absorption spectra. In situ algal absorption coefficients of unialgal dinoflagellate blooms can be discovered by determining pigment concentrations, cell densities, and cell dimensions from water samples. The model can be used to estimate photosynthetic light harvesting and algal contribution to light extinction in the water column. This method is sensitive to photoadaptive responses, and also allows us to assess the relative influences of light quality, accessory pigments, and packaging effects on algal light absorption. Results of the model are presented in the context of a hypothetical dinoflagellate bloom. The model may be extended to estimate primary productivity by adding a photosynthetic efficiency parameter, or including other algal taxa.

Keywords

Light Extinction Algal Taxon Accessory Pigment Microzooplankton Grazing Subsurface Chlorophyll Maximum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • N. B. Nelson
    • 1
  • B. B. Prézelin
    • 1
  1. 1.Department of Biological Sciences and Marine Science InstituteUniversity of CaliforniaSanta BarbaraUSA

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