Primary production, new production, and growth rate in the equatorial Pacific: Changes from mesotrophic to oligotrophic regime
نویسندگان
چکیده
منابع مشابه
Iron distributions in the equatorial Pacific: Implications for new production
Several recent studies have shown that phytoplankton growth rate and production at 0”, 14O”W is physiologically limited by iron. Therefore, changes in iron supply to the euphotic zone will result in variations in phytoplankton growth. We show that the flux of iron to this region is dominated by upwelling of the iron-rich Equatorial Undercurrent waters. Variations in the depth and strength of up...
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Modeling and data from the JGOFS EqPac program suggested that the eastern equatorial Pacific upwelling ecosystem includes a quasi-chemostat culture system dominated by diatoms and limited by Si(OH)4 due to a low ratio of Si(OH)4 to NO3 in the upwelling source water, the Equatorial Undercurrent. Diatoms were hypothesized to be the major users of NO3 in this system and the amount assimilated limi...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2003
ISSN: 0148-0227
DOI: 10.1029/2001jc000914