Light-limited population dynamics of phytoplankton: modeling light and depth effects |
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Authors: | R Bhutiani D R Khanna Kumar S Chandra |
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Institution: | (1) Department of Zoology and Environmental Sciences, Gurukul Kangri University, Haridwar, Uttaranchal, India;(2) C/o Dr. D.R. Khanna, 405 Vivek Vihar, BHEL More, Haridwar, 249 407, Uttaranchal, India |
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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. |
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Keywords: | Light intensity Phytoplankton Competition Light limited growth models Phytoplankton bio-volume Attenuation coefficient Extension coefficient |
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