The carbonate system of the amur estuary and the adjacent marine aquatic areas

In July 2007, integrated studies of the Amur Estuary and the adjacent aquatic areas were performed on board R/V Professor Gagarinskii within the project of the Amur River basin exploration. On the basis of the data obtained during the cruise, the carbonate system of the Amur Estuary in the summer pe...

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Bibliographic Details
Published in:Oceanology (Washington. 1965) 2009-10, Vol.49 (5), p.643-654
Main Authors: Koltunov, A. M., Tishchenko, P. Ya, Zvalinskii, V. I., Chichkin, R. V., Lobanov, V. B., Nekrasov, D. A.
Format: Article
Language:English
Subjects:
Aquatic ecology
Aquatic environment
Brackish
Carbon dioxide
Earth and Environmental Science
Earth Sciences
Estuaries
Geochemistry
Marine Chemistry
Mineralization
Oceanography
Organic matter
Photosynthesis
River basins
Surface water
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Summary:In July 2007, integrated studies of the Amur Estuary and the adjacent aquatic areas were performed on board R/V Professor Gagarinskii within the project of the Amur River basin exploration. On the basis of the data obtained during the cruise, the carbonate system of the Amur Estuary in the summer period was considered. It was shown that the distribution of the carbonate parameters in the Amur Estuary and the adjacent aquatic areas points to the high intensity of the bio-geochemical processes of production and mineralization of organic matter. It was found that the organic matter destruction is prevailing over the photosynthesis in the riverine part of the estuary. This aquatic area is a source of carbon dioxide for the atmosphere and rates as a heterotrophic basin. On the contrary, the surface waters at the outer boundaries of the estuary (the Gulf of Sakhalin and the Tatar Strait) act as a sink of the atmospheric carbon dioxide, which is caused by the intense photosynthesis in this area. This part of the estuary is treated as an autotrophic basin.
ISSN:0001-4370
1531-8508
DOI:10.1134/S0001437009050051