Spatial variability in valve morphology of Neodenticula seminae, an oceanic diatom in the subarctic North Pacific and the Bering Sea

• SHIMADA Chieko

  Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba

• TANIMURA Yoshihiro

  Department of Geology and Paleontology, National Science Museum, Tokyo

抄録

To gain basic insights into the marine pelagic diatom species Neodenticula seminae, and particularly the relationships between morphology, evolution and environment, we conducted a scanning electron microscopic image analysis using modern specimens collected in the subarctic North Pacific and Bering Sea during the summers of 1955 and 1996-2003. We recognized an apparent intraspecific variability between two biogeographic provinces in terms of morphology: (1) the Oyashio Region (in the northwestern margin of the Pacific Ocean) and (2) other oceanic regions. This variability may reflect spatial variation in the availability of nutrients such as silicate. Specimens from the Oyashio morphological province had thinly silicified valves, whereas those from the other oceanic provinces were extraordinarily rich in heavily silicified valves.

収録刊行物

• Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ

  Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ 10 (1), 79-89, 2006

  日本古生物学会

キーワード

• Bering Sea
• Diatom
• Morphology
• North Pacific Ocean
• Nutrient
• Silicification

詳細情報

• CRID: 1390282679063298944
• NII論文ID: 130004456668
• NII論文ID: 110004729550
• NII論文ID: 210000132246
• NII書誌ID: AA11137385
• DOI: 10.2517/prpsj.10.79
• ISSN: 18800068
• ISSN: 13428144
• NDL書誌ID: 7926893
• Web Site: http://id.ndl.go.jp/bib/7926893
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7926893
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可