SPORADIC INCREASE O F PARTICLE SEDIMENTATION AT THE ICE EDGE O F THE ANTARCTIC OCEAN DURING

• Main Authors: The Austral Summer, Nobuhiko Handa, Mitsuo Fukuchi
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Antarctic; Antarctic Ocean; The Antarctic; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.519.3444; http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1997-Sasaki.pdf

January, a sporadic flux increase within a few days in terms of total dry weight of 774 mg m 2 d 1 at 537 m was observed. The mass of sinking particles forming the flux maximum sank down to the deepest trap (2727 m) within 7-11 days, indicating that about 5 % of these particles were transported downward to the bottom with the sinking rate of 199-313 m d l (mean 243 m d l). The considerable particle loss rate (13 % [I00 m] ' ) below the mesopelagic layers in a short period suggests the occurrence of consumption processes induced by the sporadic supply of freshly produced particles from above. 1.