The potential contribution of fecal pellets from large copepods to the flux of biogenic silica and particulate organic carbon in the Antarctic Polar Front region near 170°W

2003 ◽  
Vol 50 (3-4) ◽  
pp. 675-691 ◽  
Author(s):  
Michael J Dagg ◽  
Juanita Urban-Rich ◽  
Jay O Peterson
Keyword(s):  
Organic Carbon ◽  
Particulate Organic Carbon ◽  
Biogenic Silica ◽  
Polar Front ◽  
Potential Contribution ◽  
Antarctic Polar Front ◽  
Fecal Pellets ◽  
The Antarctic ◽  
Front Region

Particle export and the biological pump in the Southern Ocean

2004 ◽  
Vol 16 (4) ◽  
pp. 501-516 ◽  
Author(s):  
SUSUMU HONJO
Keyword(s):  
Organic Carbon ◽  
Southern Ocean ◽  
Carbon Particle ◽  
Polar Front ◽  
Antarctic Polar Front ◽  
Biological Pump ◽  
The South ◽  
Regeneration Rate ◽  
Particle Export ◽  
The Antarctic

The organic carbon particle export to the interior layers in the Southern Ocean in the New Zealand–Tasmania Sector was approximately 170 mmolC m−2 yr−1. The export of particulate inorganic carbon in CaCO3 was 110 mmolC m−2 yr−1 and was contributed mostly by pteropods shells in the Antarctic Zones. The Si flux from biogenic opal at the sub-Antarctic Zone was 67 mmolSi m−2 yr−1 and rapidly increased to the south up to nearly 1 molSi m−2 yr−1 in the Antarctic Zone. The Antarctic Polar Front clearly demarcated the area where the biological pump was driven by CaCO3 to the north and biogenic SiO2 particle export to the south. Summer stratification caused by the sub-zero winter water layer in the Seasonal Ice Zone (SIZ) curtails the zooplankton community and hinders the replenishment of Fe. This hypothesis explains the large organic carbon export with large f- and export ratios at the SIZ and extremely large opal production at the Antarctic Circumpolar Zone. Estimated regeneration rate of CO2 from the export production and settling particulate fluxes of organic carbon in the water column between 100 m to 1 km was about 13 mmolC m−2 d−1 in the Antarctic Zone and Polar Frontal Zone.

Seasonal dynamics of phytoplankton in the Antarctic Polar Front region at 170°W

2002 ◽  
Vol 49 (9-10) ◽  
pp. 1843-1865 ◽  
Author(s):  
Michael R Landry ◽  
Karen E Selph ◽  
Susan L Brown ◽  
Mark R Abbott ◽  
Christopher I Measures ◽  
...  
Keyword(s):  
Seasonal Dynamics ◽  
Polar Front ◽  
Antarctic Polar Front ◽  
The Antarctic ◽  
Front Region

scholarly journals Mixed layer analysis of a mesoscale eddy in the Antarctic Polar Front Zone

2008 ◽  
Vol 113 (C5) ◽  
Author(s):  
Boris Cisewski ◽  
Volker H. Strass ◽  
Martin Losch ◽  
Hartmut Prandke
Keyword(s):  
Mixed Layer ◽  
Mesoscale Eddy ◽  
Polar Front ◽  
Antarctic Polar Front ◽  
Layer Analysis ◽  
The Antarctic ◽  
Front Zone
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