Shubha Sathyendranath

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The world's oceans contain a complex mixture of micro-organisms that are for the most part, uncharacterized both genetically and biochemically. We report here a metagenomic study of the marine planktonic microbiota in which surface (mostly marine) water samples were analyzed as part of the Sorcerer II Global Ocean Sampling expedition. These samples,(More)
By using data collected during a continuous circumnavigation of the Southern Hemisphere, we observed clear patterns in the population-genetic structure of Prochlorococcus, the most abundant photosynthetic organism on Earth, between and within the three Southern Subtropical Gyres. The same mechanisms that were previously invoked to account for the vertical(More)
1 SOOS editors thank all contributors for their comments and input to the SOOS document. It has been the editors' wish to include all those who have made a contribution, though we apologise in advance if we have inadvertently omitted any names. *The Editors thank these contributors for conducting formal reviews of this Strategy.
In conjunction with the EU PRESPO Project for sustainable development of the artisanal fisheries in the Atlantic area, within the INTERREG IVB Programme (a Community Initiative to stimulate interregional cooperation in the European Union) This handbook is based on contributions from (in alphabetical order):
In high-nutrient, low-chlorophyll (HNLC) regions of the ocean, phytoplankton biomass remains low despite an abundance of major nutrients. Platt et al. [Proc. Roy. Soc. A 459 (2003) 1063] constructed a simple two-component (chlorophyll and nitrate) model of HNLC regions and used it to determine analytically the upper bound on chlorophyll and the lower bound(More)
This study provides a satellite-based estimate of potential primary production in the Brazilian Southeast coast from in situ and Sea-viewing Wide Field-of-view Sensor (SeaWiFS) ocean color data. A non-spectral and vertically homogeneous semi-analytical algorithm and a spectral vertically non-homogeneous numerical algorithm were applied to the satellite(More)
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