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On the possible causes of the seasonal phytoplankton blooms along the southwest coast of India

DRS at CSIR-National Institute of Oceanography

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Field Value
 
Title On the possible causes of the seasonal phytoplankton blooms along the southwest coast of India
 
Creator Banse, K.
Sumitra-Vijayaraghavan
Madhupratap, M.
 
Subject phytoplankton
algal blooms
seasonal variations
monsoons
biomass
photosynthesis
yield
upwelling
 
Description Data collected off the southwest coast of India at the onset of the 1987 southwest monsoon season suggest that the commonly observed high concentrations of chlorophyll and rates of photosynthesis of the season may not be due to greatly enhanced chlorophyll-specific (normalized) photosynthetic rates of the bulk phytoplankton. Instead it is proposed that the seasonally increased nutrient supply primarily increases the growth rate of the otherwise more diffusion-limited large-celled species, which then can materially increase in numbers, since they are poorly controlled by grazers. It so, the principal role of the high nutrient oncentrations would be to permit the build-up of a large algal biomass and pigment concentrations that, coupled with moderate normalized photosynthetic rates, yield the observed high production rates per m sup(2) and m sup(2) of the upwelling season.
 
Date 2009-01-20T08:39:22Z
2009-01-20T08:39:22Z
1996
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.25; 283-289p.
http://drs.nio.org/drs/handle/2264/2122
 
Language en
 
Rights Copyright [1996]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher NISCAIR, CSIR