Physical, chemical and biological oceanography during Polarstern cruise ANT-X/6 ...

The R.V. Polarstern cruise ANT X/6, part of the international Southern Ocean JGOFS programme, investigated phytoplankton spring bloom development and its biogeochemical effects in different water masses of the Atlantic sector of the Southern Ocean: the Polar Frontal region (PFr), the southern Antarc...

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Bibliographic Details
Main Authors: Smetacek, Victor, de Baar, Hein J W, Bathmann, Ulrich, Lochte, Karin, Rutgers van der Loeff, Michiel M
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 1997
Subjects:
Underway cruise track measurements
CTD/Rosette
Sampling gear, diverse
MultiCorer
Giant water sampler
ANT-X/6
Polarstern
Biological Oceanography @ AWI AWI_BioOce
Joint Global Ocean Flux Study JGOFS
Antarc*
Antarctic
Southern Ocean
Online Access:https://dx.doi.org/10.1594/pangaea.728865
https://doi.pangaea.de/10.1594/PANGAEA.728865
Description
Summary:The R.V. Polarstern cruise ANT X/6, part of the international Southern Ocean JGOFS programme, investigated phytoplankton spring bloom development and its biogeochemical effects in different water masses of the Atlantic sector of the Southern Ocean: the Polar Frontal region (PFr), the southern Antarctic Circumpolar Current zone (sACC), its boundary with the Weddell Gyre (AWB) and the marginal ice zone (MIZ). The relative roles of physical stability, iron limitation and grazing pressure in enhancing or constraining phytoplankton biomass accumulation were examined. Three sections were carried out between the PFr and the ice edge along the 6°W meridian from early October to late November 1992. This paper summarises the major findings of the cruise and discusses their implications for our understanding of Southern Ocean ecology and biogeochemistry. A major finding was the negligible build-up of plankton biomass and concomitant absence of CO2 drawdown associated with seasonal retreat of the ice cover. In striking ... : Supplement to: Smetacek, Victor; de Baar, Hein J W; Bathmann, Ulrich; Lochte, Karin; Rutgers van der Loeff, Michiel M (1997): Ecology and biogeochemistry of the Antarctic circumpolar current during austral spring: Southern Ocean JGOFS Cruise ANT X/6 of R.V. Polarstern. Deep Sea Research Part II: Topical Studies in Oceanography, 44(1-2), 1-21 ...

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