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Proceedings Paper

Variability in photosynthetic parameters
Author(s): Egil Sakshaug
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Paper Abstract

Chlorophyll (alpha) -normalized photosynthetic parameters, e.g. the photosynthetic efficiency ((alpha) B), and the maximum photosynthetic rate (PBm), for natural phytoplankton communities exhibit extreme ranges of variation. Part of this variation is related to the species composition of the communities, another part has methodological causes, and a large part has physiological causes, i.e. manifestations of adaptational responses to variations in environmental factors. To exemplify species differences in Chl(alpha) -normalized photosynthetic parameters, the high parameter values for prymnesiophytes in contrast to diatoms are discussed. These are primarily due to the lower chlorophyll (alpha) :carbon (Chl(alpha) :C) ratios in prymnesiophytes and therefore do not indicate that prymnesiophytes are superior to diatoms in the harvesting of light.

Paper Details

Date Published: 10 December 1993
PDF: 9 pages
Proc. SPIE 2048, Underwater Light Measurements, (10 December 1993); doi: 10.1117/12.165490
Show Author Affiliations
Egil Sakshaug, Univ. of Trondheim (Norway)


Published in SPIE Proceedings Vol. 2048:
Underwater Light Measurements
Hans-Christian Eilertsen, Editor(s)

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