Stable isotope ratios of particulate organic carbon in surface water at inner part of Tokyo Bay

DOI Web Site 4 Citations
  • Ogura Norio
    Faculty of Agriculture, Tokyo University of Agriculture & Technology
  • Kimura Kenji
    Faculty of Agriculture, Tokyo University of Agriculture & Technology
  • Sekigawa Tomoki
    Faculty of Agriculture, Tokyo University of Agriculture & Technology
  • Yamada Kazuhito
    Faculty of Agriculture, Tokyo University of Agriculture & Technology
  • Minagawa Masao
    Mitsubishi-Kasei Institute of Life Science

Bibliographic Information

Other Title
  • 東京湾内湾部における懸濁有機物の炭素安定同位体比
  • トウキョウワンナイワンブ ニ オケル ケンダク ユウキブツ ノ タンソ アンテ

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Abstract

Stable isotope ratios of particulate organic carbon (δ13C)were determined for surface water of inner part of Tokyo Bay in 1982-1984. δ13C values ranged from -12.3 ‰ to -25.3 ‰ (mean -19.3 ‰) at St-25 and -10.6 ‰ to -22.9 ‰ (mean -17.0 ‰) at St-35 during April to August 1982. Good linear relationships between δ13C values and salinity, silicate, ammonium and phosphate were observed, respectively at four stations locating from the estuary of the Arakawa River to the southward. This suggests that river water inflows to the Bay and spreads to the southward. δ13C values of litter' and soil were -25.7 ‰ and -29.3 ‰ respectively : these were apparently lower than those of marine plankton.

Journal

  • Chikyukagaku

    Chikyukagaku 20 (1), 13-19, 1986

    The Geochemical Society of Japan

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