VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN
Abstract: During the icebreaker SHIRASE cruise of the 27th Japanese Antarctic Research Expedition (JARE-27; 1985/86), vertical profiles of phytoplankton chlorophyll a concentration in the upper 200m of the water column were observed at 12 stations in the Southern Ocean and at 3 stations in the subtr...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.545.3590 2023-05-15T13:50:02+02:00 VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN In Summer Hiroshi Hattori Atsushi Tanimura Mitsuo Fukuchi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.3590 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.3590 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf text ftciteseerx 2016-01-08T11:15:35Z Abstract: During the icebreaker SHIRASE cruise of the 27th Japanese Antarctic Research Expedition (JARE-27; 1985/86), vertical profiles of phytoplankton chlorophyll a concentration in the upper 200m of the water column were observed at 12 stations in the Southern Ocean and at 3 stations in the subtropical water from December 1985 to March 1986. High phytoplankton chlorophyll standing crops (ca. 370 mg m 2 in December and 330 mg m 2 in February) were observed in Breid Bay, Antarctica. In other stations of the Antarctic Ocean, the standing crops were less than 52 mg m 2. Size fractionation studies revealed that net-phytoplankton (>20 p m) was the dominant fraction of total chlorophyll a during the summer bloom in Breid Bay. In Antarctic waters, the high contribu-tions of the net-phytoplankton fraction corresponded to high total biomass. And also, contribution of the net-phytoplankton to the total phytoplankton was supposed to be controlled by the length of the ice-free period. Considering the high phytoplankton growth rates under the nutrient rich condition, duration under optimum light condition and water stability appear to be important factors affecting the phytoplankton crops in the Antarctic Ocean in summer. key words: size fractioned chlorophyll a, vertical distribution, Southern Ocean, water stability, JARE-27 Text Antarc* Antarctic Antarctic Ocean Antarctica Southern Ocean Unknown Antarctic Antarctic Ocean Breid Bay ENVELOPE(24.083,24.083,-70.250,-70.250) Indian Southern Ocean The Antarctic |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Abstract: During the icebreaker SHIRASE cruise of the 27th Japanese Antarctic Research Expedition (JARE-27; 1985/86), vertical profiles of phytoplankton chlorophyll a concentration in the upper 200m of the water column were observed at 12 stations in the Southern Ocean and at 3 stations in the subtropical water from December 1985 to March 1986. High phytoplankton chlorophyll standing crops (ca. 370 mg m 2 in December and 330 mg m 2 in February) were observed in Breid Bay, Antarctica. In other stations of the Antarctic Ocean, the standing crops were less than 52 mg m 2. Size fractionation studies revealed that net-phytoplankton (>20 p m) was the dominant fraction of total chlorophyll a during the summer bloom in Breid Bay. In Antarctic waters, the high contribu-tions of the net-phytoplankton fraction corresponded to high total biomass. And also, contribution of the net-phytoplankton to the total phytoplankton was supposed to be controlled by the length of the ice-free period. Considering the high phytoplankton growth rates under the nutrient rich condition, duration under optimum light condition and water stability appear to be important factors affecting the phytoplankton crops in the Antarctic Ocean in summer. key words: size fractioned chlorophyll a, vertical distribution, Southern Ocean, water stability, JARE-27 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
In Summer Hiroshi Hattori Atsushi Tanimura Mitsuo Fukuchi |
spellingShingle |
In Summer Hiroshi Hattori Atsushi Tanimura Mitsuo Fukuchi VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
author_facet |
In Summer Hiroshi Hattori Atsushi Tanimura Mitsuo Fukuchi |
author_sort |
In Summer |
title |
VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
title_short |
VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
title_full |
VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
title_fullStr |
VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
title_full_unstemmed |
VERTICAL DISTRIBUTION O F SIZE FRACTIONATED PHYTOPLANKTON CHLOROPHYLL IN THE INDIAN SECTOR O F THE SOUTHERN OCEAN |
title_sort |
vertical distribution o f size fractionated phytoplankton chlorophyll in the indian sector o f the southern ocean |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.3590 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf |
long_lat |
ENVELOPE(24.083,24.083,-70.250,-70.250) |
geographic |
Antarctic Antarctic Ocean Breid Bay Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean Breid Bay Indian Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctica Southern Ocean |
op_source |
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.3590 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1999-Hattori.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766252777956179968 |