Particulate organic carbon in the southern Taiwan Strait during summer

YE Xiang; LI Yan; HUANG Bang-qin; CHEN Jian

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YE Xiang, LI Yan, HUANG Bang-qin, CHEN Jian. Particulate organic carbon in the southern Taiwan Strait during summer[J]. Haiyang Xuebao, 2009, 31(6): 87-99.

Citation:

YE Xiang, LI Yan, HUANG Bang-qin, CHEN Jian. Particulate organic carbon in the southern Taiwan Strait during summer[J]. Haiyang Xuebao, 2009, 31(6): 87-99.

YE Xiang, LI Yan, HUANG Bang-qin, CHEN Jian. Particulate organic carbon in the southern Taiwan Strait during summer[J]. Haiyang Xuebao, 2009, 31(6): 87-99.

Citation:

YE Xiang, LI Yan, HUANG Bang-qin, CHEN Jian. Particulate organic carbon in the southern Taiwan Strait during summer[J]. Haiyang Xuebao, 2009, 31(6): 87-99.

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Particulate organic carbon in the southern Taiwan Strait during summer

1.
, Open Laboratory of Ocean & Coast Environmental Geology, Third Institute of Oceanography, State Ocean Administration, Xiamen 361005, China;Joint Key Laboratory of Coastal Study, Xiamen University, Xiamen 361005, China
2.
Joint Key Laboratory of Coastal Study, Xiamen University, Xiamen 361005, China
3.
, Open Laboratory of Ocean & Coast Environmental Geology, Third Institute of Oceanography, State Ocean Administration, Xiamen 361005, China

Received Date: 2009-05-14
Rev Recd Date: 2009-08-26

Abstract

Abstract

Particulate organic carbon was analysed in the south of Taiwan Strait in the summer cruises of 2004,2005 and 2006.High level of surface Particulate organic carbon(POC) concentration was found nearshore and decreased seaward. The areas with high value of surface and subsurface POC concentration were located near Dongshan Island and Nan'ao Island. (TSN)TSM were enriched during the cruises with strongly alongshore current such as those of 2005 and 2006.There was a positive correlation between POC concentration and Chi a that implied phytoplankton became the main source of POC. The positive correlation between ratio Chl a/POC and Chl a was found for data of all cruises, but ratio Chl a/POC was small in the high Chl a area adjacent to upwelling centers. This may suggest there was high trophic transfer efficiency in food chain of upwelling dominated area or upwelling event of southern Taiwan Strait. As revealed by scatter plot for the ratio Chl a/POC and Chl a, trophic transfer efficiency was restrained in the summers of 1988, 1998 and 2004, however, it became activity during the summers of 2005 and 2006.For each cruise, there was a positive correlation between POC and TSM, and there was also a positive correlation between ratio Chl a/POC and TSM. There was negative correlation between POC/TSM and TSM for data of all cruises. Obviously fluctuation in TSM, relative steady POC and steady-going relationship between ratio Chl a/POC and Chl a suggested, there was a marine biogenic matter dominated particulate organic carbon system in the southern Taiwan Strait, in despite of the regime with river input particle under strongly alongshore current event.
- particulate organic carbon,
- suspended matter,
- upwelling,
- Taiwan Strait

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References(22)

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