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Proceedings Paper

Relationship Between Cross-Sectional Absorption And Chlorophyll Content In Natural Populations Of Marine Phytoplankton
Author(s): Charles S Yentsch; David A Phinney
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Paper Abstract

We have measured the in vivo absorption of light (670 nm) by natural phytoplankton populations collected from a variety of locations in the North Atlantic Ocean. There is a strong correlation between chlorophyll content and absorption. By using a linear regression model the mean value for chlorophyll specific absorption (A*) is 0.0138. The range in this value is about .0100 - .0300. At chlorophyll concentrations less than 0.5 gg/1 the slope differs from the slope at higher concentrations. The scatter of points around the mean increases with increasing chlorophyll. By grouping chlorophyll concentrations a mean and standard error have been determined for each group. This allows the entire data set to be fitted with a power model curve (Y = aXb). The exponent b is 0.758(3/4) which argues that A* is a function of cell volume, i.e., A* = .0667 Chlag/1)-758.

Paper Details

Date Published: 12 August 1988
PDF: 4 pages
Proc. SPIE 0925, Ocean Optics IX, (12 August 1988); doi: 10.1117/12.945714
Show Author Affiliations
Charles S Yentsch, Bigelow Laboratory for Ocean Sciences (United States)
David A Phinney, Bigelow Laboratory for Ocean Sciences (United States)


Published in SPIE Proceedings Vol. 0925:
Ocean Optics IX
Marvin A. Blizard, Editor(s)

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