SPORADIC INCREASE OF PARTICLE SEDIMENTATION AT THE ICE EDGE OF THE ANTARCTIC OCEAN DURING THE AUSTRAL SUMMER 1994-1995 (18th Symposium on Polar Biology)

• ササキ ヒロシ

• スズキ ヒデカツ

• タカヤマ マコト

• スズキ コウジ

• ハンダ ノブヒコ

• クドウ サカエ

• フクチ ミツオ

• Hiroshi SASAKI

• Hidekatsu SUZUKI

• Makoto TAKAYAMA

• Koji SUZUKI

• Nobuhiko HANDA

• Sakae KUDOH

• Mitsuo FUKUCHI

Abstract

type:P(論文)

Time-series sediment traps were deployed at depths of 537 m, 796 m, 1259 m, 1722 m and 2727 m at ice edge of the Antarctic Ocean (64°42'S, 139°58'E) from 26 December 1994 to 20 January 1995. During a short period from 7 to 9 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^<-1> (mean 243 m d^<-1>). The considerable particle loss rate (13% [100 m]^<-1>) 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.

Journal

• Proceedings of the NIPR Symposium on Polar Biology

  Proceedings of the NIPR Symposium on Polar Biology 10 50-55, 1997-02

  National Institute of Polar Research

Details

• CRID: 1390009224916790912
• NII Article ID: 120005506622
• NII Book ID: AA10819561
• DOI: 10.15094/00005339
• Web Site: http://id.nii.ac.jp/1291/00005339/
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • CiNii Articles