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D-3.2.1 Study on monitoring of anthropogenic input and its effect on marine ecosystem by satellite and ship observations

[Contact Person]

Kuniaki Miyaji
Oceanography and Southern Ocean Resources Division
National Research Institute of Far Seas Fisheries
7-1, 5-chome, Orido, Shimizu, 424 Japan
Tel: 0543-36-6061 Fax: 0543-35-9642
E-mail: miyji@enyo.affrc.go.jp

Total Budget for FY1996-FY1998

17,647,000 Yen (FY1998: 5,915,000 Yen)

Abstract

We analysed the data obatined in Suruga Bay and the East China Sea. Atomic ratio of nitrite + nitrate/silicate seems to be a good indicator for the influence of anthropogenic input via river. We made the imageries of colored dissolved organic materilas, chlorophyll and suspended solid in the East China Sea in May 1997 based on OCTS High chlorophyll concentrations were found around the areas where high data. concentrations of colored dissolved organic materials were observed. Ocean color remote sensing has a potentiality to monitors the chlorophyll increased by the input of anthropogenic nutrient via river.

[Key Words]

Anthropogenic input, Marine ecosystem, Chlorophyll a, Phytoplankton, Nutrient, N/Si atomic ratio, Ocean color remote sensing, Colored dissolved organic materilas