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

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概要

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• 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.

• 日本古生物学会の論文
• 2006-04-30

著者

• Tanimura Yoshihiro

  Department Of Geology And Paleontology National Science Museum

• SHIMADA CHIEKO

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

• Shimada Chieko

  Geological Survey Of Japan National Institute Of Advanced Industrial Science And Technology

関連論文

• Late Quaternary Diatoms of the Sea of Japan
• Spatial variability in valve morphology of Neodenticula seminae, an oceanic diatom in the subarctic North Pacific and the Bering Sea

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