Bias in satellite-derived pigment measurements due to coccolithophores and dinoflagellates |
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Authors: | Balch, William M. Eppley, Richard W. Abbott, Mark R. Reid, Freda M.H. |
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Affiliation: | Division of Biology and Living Resources, Rosenstiel School of Marine and Atmospheric Science, University of Miami 4600 Rickenbacker Causeway, Miami, FL 33149-1098, USA 1Scripps Institution of Oceanography, University of California-San Diego La Jolla, CA 92093 2College of Oceanography, Oregon State University Oceanography Administration Building 104, Corvallis, OR 97331-503, USA |
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Abstract: | Satellite-derived estimates of phytoplankton pigments are thoughtto be affected by the phytoplankton species composition. Measurementsof surface algal chlorophyll and satellite-derived pigment werecompared for waters containing coccolithophores and dinoflagellates.Satellite-derived chlorophyll concentration was underestimatedby a factor of 23 in a patch of the large coccolithophore,Umbilicosphaera sibogae, and also in a bloom of the dinoflagellate,Gonyaulax polyedra. Overall abundance and species-specific propertiessuch as light scatter and vertical migration probably causedthese results. |
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