Study of vertical particle fluxes and their composition in the deep ocean of the north open sea of the Prydz Bay,Antarctica and the comparison with the Ross Sea

HU Chuan-yu; PAN Jian-ming; ZHANG Hai-sheng; YU Pei-song; Xue Bin

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HU Chuan-yu, PAN Jian-ming, ZHANG Hai-sheng, YU Pei-song, Xue Bin. Study of vertical particle fluxes and their composition in the deep ocean of the north open sea of the Prydz Bay,Antarctica and the comparison with the Ross Sea[J]. Haiyang Xuebao, 2006, 28(5): 49-55.

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Study of vertical particle fluxes and their composition in the deep ocean of the north open sea of the Prydz Bay,Antarctica and the comparison with the Ross Sea

Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration, Hangzhou 310012, China

Received Date: 2005-09-26
Rev Recd Date: 2005-12-01

Abstract

Abstract

Time-series Mark Ⅶ sediment trap was deployed at 62°28' 63"S,72°58' 55"E(north of the Prydz Bay, Antarctica) during the cruise of CHINARE-15 cooperated with the Marine Univ ersity of America.Biogenic components were investigated in order to reveal the composition characteristics and biogeochemistry of sinking particles in the deep ocean.The results show that the total mass flux of sinking particles at 1 000 m depth ranges from 13.00 to 334.59 mg/(m²·d) and is high seasonal, the main part of particles is biogenic matter, accounting for more than 80% of the biogenic matter.The observation of high ratio of biogenic silicon content to organic carbon one and ratio of inorganic carbon content to organic carbon one suggest sthatorganic carbon and biogenic siliconcy cles are non-coupled in the study area, CO₂ is removed from surface water by biological activity.
- particle flux,
- composition,
- Prydz Bay,Antarctica,
- Ross Sea

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References(21)

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