Light-limited population dynamics of phytoplankton: modeling light and depth effects

R. Bhutiani (), D. R. Khanna () and Kumar S. Chandra
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R. Bhutiani: Gurukul Kangri University
D. R. Khanna: Gurukul Kangri University
Kumar S. Chandra: Gurukul Kangri University

Environment Systems and Decisions, 2009, vol. 29, issue 1, 93-105

Abstract: Abstract Light has received very less attention as a selective factor, probably because the changing vertical light gradient makes light a rather complex factor when compared with the nutrient competition. In our study we modified an analytically tractable model based upon the Beer–Lambert law. The study aimed to predict the outcome of phytoplankton competition for light, on the basis of field measurements. When we considered competition theory, Fragilaria was found to be more competitive than other genera. The overall result shows that the trends flow in the following manner; Fragilaria > Gomphonema > Diatoma > Amphora > Achnanthes.

Keywords: Light intensity; Phytoplankton; Competition; Light limited growth models; Phytoplankton bio-volume; Attenuation coefficient; Extension coefficient (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1007/s10669-008-9184-2

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