Detailed vertical distribution of radiolarian assemblage (0-3000 m, fifteen layers) in the central subarctic Pacific, June 2006

• 田中 聖二

  九州大学大学院理学研究院地球惑星科学部門

• 高橋 孝三

  九州大学大学院理学研究院地球惑星科学部門

抄録

The vertical distribution of radiolarians was investigated by using plankton nets with 63 $ mu $m mesh in the central subarctic Pacific (Station OS06-SA) from the surface down to 3000 m depth, which were divided into fifteen sample layers. These samples were obtained in June 2006. Radiolarian standing stocks were high in the 0-250 m interval, and they generally decreased with increasing depth. The maximum standing stocks of living radiolarians occurred in the 75-100 m depth interval. The radiolarian production is likely to be associated with temperature and dissolved oxygen. A total of 80 taxa were encountered: 33 Spumellaria, 32 Nassellaria, and 15 Phaeodaria. Six radiolarian groups were identified based on R-mode cluster analysis: Group 1: surface dwellers (0-250 m), Group 2: the taxa with pronounced abundance peaks in the 75-150 m, Group 3: subsurface to upper intermediate dwellers (750-500 m), Group 4: lower intermediate dwellers (500-1000 m), Group 5: the taxa with relatively high abundance in the 1000-2000 m; and Group 6: lower deep dwellers (2000-3000 m).

収録刊行物

• Memoirs of the Faculty of Science, Kyushu University. Series D, Earth and planetary sciences

  Memoirs of the Faculty of Science, Kyushu University. Series D, Earth and planetary sciences 32 (1), 49-72, 2008-02-01

  九州大学大学院理学研究院

キーワード

• Radiolaria
• vertical distribution
• standing stocks
• the subarctic Pacific
• vertical multiple plankton sampler(VMPS)

詳細情報

• CRID: 1390009224755709440
• NII論文ID: 110006549875
• NII書誌ID: AA10816494
• DOI: 10.5109/11807
• HANDLE: 2324/11807
• ISSN: 09167390
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用可