東京湾内湾部における懸濁有機物の炭素安定同位体比

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タイトル別名
  • Stable isotope ratios of particulate organic carbon in surface water at inner part of Tokyo Bay
  • 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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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.

収録刊行物

  • 地球化学

    地球化学 20 (1), 13-19, 1986

    一般社団法人日本地球化学会

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