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Phytoplankton community structure in the Drake Passage between the Magellan Strait and the Bransfield Strait

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Title
Phytoplankton community structure in the Drake Passage between the Magellan Strait and the Bransfield Strait
Other Titles
남극 드레이크해협의 식물플랑크톤 군집구조
Authors
Kim, Dockyu
Choi, Ki Young
Yoo, Miyoun
Choi, Jung Nam
Lee, Choong Hwan
Zylstra, Gerben J.
Kang, Beom Sik
Kim, Eungbin
Keywords
drake passage; magellan strait; phytoplankotn community struct
Issue Date
2004
Citation
Kim, Dockyu, et al. 2004. Phytoplankton community structure in the Drake Passage between the Magellan Strait and the Bransfield Strait. 2004.09.09~.
Abstract
During the Austral summer of 2001/02, phytoplankton biomass and species distribution were measured in the Drake Passage between the Magellan Strait and the Bransfield Strait region. Size-fractionated chlorophyll a (chl a) concentrations with species information were measured to investigate the relations between physico-chemical factors and phytoplankton community structure. Chl a values ranged from 0.14 to 2.42 mg chl a m-3 (mean of 0.93 mg chl a m-3) in the overall surface stations. The highest values of the chl a concentrations (1.08 - 2.42 mg chl a m-3) were found in the Magellan Strait and near Falkland Island in the Sub-Antarctic. Nanoplanktonic (<20 µ
m) phytoflagellates were the important contributors for the increase of the chl a in the pelagic region. The nano-sized phytoflagellates accounted for more than 80% of the total chl a biomass in the pelagic regions of the Sub-Antarctic and the Antarctic. Mean chl a concentration in the Sub-Antarctic (0.92 mg chl a m-3) was 0.05 mg chl a m-3 lower than in the Antarctic (0.97 mg chl a m-3).
URI
http://repository.kopri.re.kr/handle/201206/7553
Conference Date
2004.09.09~
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