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An analytical study of three characteristic forms of light-forced primary production in aquatic ecosystems

An analytical study of three characteristic forms of light-forced primary production in aquatic... Primary production in aquatic ecosystems is largely a function of irradiance, with photosynthetic response to light ranging from “light saturation” through “asymptotic inhibition” to “complete inhibition”. Equations describing these three basic types of response have been solved to yield instantaneous integral photosynthesis as a function of irradiance, chlorophyll a concentration, light extinction coefficient, and photosynthetic capacity of the phytoplankton at optimum irradiance. These results were used to calculate diurnal trends of instantaneous integral photosynthesis for several different latitudes and seasons and finally day-rate integrals of photosynthesis as a function of time of year at several latitudes. The final results allow rapid evaluation of the entire northern hemisphere in terms of potential sites for controlled aqua-culture facilities, using basic phytoplankton and water properties and standardized weather data. Results for the “complete inhibition” case can be used to evaluate both net and gross photosynthesis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Oecologia Springer Journals

An analytical study of three characteristic forms of light-forced primary production in aquatic ecosystems

Idso, Sherwood; Foster, Joyce
Oecologia , Volume 18 (2) – Jun 1, 1975
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References (19)

Publisher
Springer Journals
Copyright
Copyright © 1975 by Springer-Verlag
Subject
Life Sciences; Ecology; Plant Sciences
ISSN
0029-8549
eISSN
1432-1939
DOI
10.1007/BF00348095
Publisher site
See Article on Publisher Site

Abstract

Primary production in aquatic ecosystems is largely a function of irradiance, with photosynthetic response to light ranging from “light saturation” through “asymptotic inhibition” to “complete inhibition”. Equations describing these three basic types of response have been solved to yield instantaneous integral photosynthesis as a function of irradiance, chlorophyll a concentration, light extinction coefficient, and photosynthetic capacity of the phytoplankton at optimum irradiance. These results were used to calculate diurnal trends of instantaneous integral photosynthesis for several different latitudes and seasons and finally day-rate integrals of photosynthesis as a function of time of year at several latitudes. The final results allow rapid evaluation of the entire northern hemisphere in terms of potential sites for controlled aqua-culture facilities, using basic phytoplankton and water properties and standardized weather data. Results for the “complete inhibition” case can be used to evaluate both net and gross photosynthesis.

Journal

Oecologia – Springer Journals

Published: Jun 1, 1975

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