Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992
Sinking particles were collected using sediment traps, which were deployed at depths of 25 or 30m under fast ice near Syowa Station, Antarctica, from January 6 to February 6, 1992. Using the samples, fluxes of chlorophyll a (Chl a) were estimated and the contribution of algal sinking to the decrease...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:1bc0116c3cf642e4b10bacb4545369e4 2023-05-15T14:00:07+02:00 Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 Tsuneo Odate Hiroshi Sasaki Mitsuo Fukuchi 2004-03-01 https://doi.org/10.15094/00009277 https://doaj.org/article/1bc0116c3cf642e4b10bacb4545369e4 en other eng National Institute of Polar Research doi:10.15094/00009277 0085-7289 2432-079X https://doaj.org/article/1bc0116c3cf642e4b10bacb4545369e4 undefined Antarctic Record, Vol 48, Iss 1, Pp 1-6 (2004) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2004 fttriple https://doi.org/10.15094/00009277 2023-01-22T19:35:08Z Sinking particles were collected using sediment traps, which were deployed at depths of 25 or 30m under fast ice near Syowa Station, Antarctica, from January 6 to February 6, 1992. Using the samples, fluxes of chlorophyll a (Chl a) were estimated and the contribution of algal sinking to the decrease of phytoplankton biomass after the summer bloom was evaluated. The Chl a concentration, integrated above the depths at which the sediment traps were deployed, reached a maximum in mid-January. The Chl a flux became high after the maximum of the concentration was recorded. In the Chl a decreasing phase, daily decreasing rates of the Chl a concentrations in the water columns were 8.71-10.4mg Chl a m-2 day-1 . During this period the Chl a fluxes accounted for only 3.6-4.0 of the decreasing rates. These observations imply that algal sinking is not the major process of phytoplankton biomass decrease after the summer bloom. Article in Journal/Newspaper Antarc* Antarctica Unknown Austral Syowa Station |
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Open Polar |
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fttriple |
language |
English |
topic |
geo |
spellingShingle |
geo Tsuneo Odate Hiroshi Sasaki Mitsuo Fukuchi Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
topic_facet |
geo |
description |
Sinking particles were collected using sediment traps, which were deployed at depths of 25 or 30m under fast ice near Syowa Station, Antarctica, from January 6 to February 6, 1992. Using the samples, fluxes of chlorophyll a (Chl a) were estimated and the contribution of algal sinking to the decrease of phytoplankton biomass after the summer bloom was evaluated. The Chl a concentration, integrated above the depths at which the sediment traps were deployed, reached a maximum in mid-January. The Chl a flux became high after the maximum of the concentration was recorded. In the Chl a decreasing phase, daily decreasing rates of the Chl a concentrations in the water columns were 8.71-10.4mg Chl a m-2 day-1 . During this period the Chl a fluxes accounted for only 3.6-4.0 of the decreasing rates. These observations imply that algal sinking is not the major process of phytoplankton biomass decrease after the summer bloom. |
format |
Article in Journal/Newspaper |
author |
Tsuneo Odate Hiroshi Sasaki Mitsuo Fukuchi |
author_facet |
Tsuneo Odate Hiroshi Sasaki Mitsuo Fukuchi |
author_sort |
Tsuneo Odate |
title |
Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
title_short |
Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
title_full |
Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
title_fullStr |
Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
title_full_unstemmed |
Vertical flux of chlorophyll a under fast ice near Syowa Station, Antarctica, in austral summer, 1991/1992 |
title_sort |
vertical flux of chlorophyll a under fast ice near syowa station, antarctica, in austral summer, 1991/1992 |
publisher |
National Institute of Polar Research |
publishDate |
2004 |
url |
https://doi.org/10.15094/00009277 https://doaj.org/article/1bc0116c3cf642e4b10bacb4545369e4 |
geographic |
Austral Syowa Station |
geographic_facet |
Austral Syowa Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Antarctic Record, Vol 48, Iss 1, Pp 1-6 (2004) |
op_relation |
doi:10.15094/00009277 0085-7289 2432-079X https://doaj.org/article/1bc0116c3cf642e4b10bacb4545369e4 |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00009277 |
_version_ |
1766269120263749632 |