Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica
Abstract. Time series of phytoplankton biomass and taxonomic composition have been obtained for the 3 years 1992,1993 and 1994 in the northern part of the Southern Ocean (station Kerfix, 50°40'S, 68°25'E). Autotrophic biomass was low throughout the year (<0.2 mg m~3), except during a sh...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.622.3434 2023-05-15T13:44:54+02:00 Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica Michel Fiala Elzbieta E. Kopczynska Catherine Je Louise Oriol Gilles Vetion The Pennsylvania State University CiteSeerX Archives 1998 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.3434 http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.3434 http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf text 1998 ftciteseerx 2016-01-08T15:03:49Z Abstract. Time series of phytoplankton biomass and taxonomic composition have been obtained for the 3 years 1992,1993 and 1994 in the northern part of the Southern Ocean (station Kerfix, 50°40'S, 68°25'E). Autotrophic biomass was low throughout the year (<0.2 mg m~3), except during a short period in summer when a maximum of 1.2 mg chlorophyll (Chi) a nr1 was reached. During winter, the integrated biomass was low (<10 mg m~2) and associated with deeply mixed water, whereas the high summer biomass (>20 mg m~2) was associated with increased water column stability. During summer blooms, the>10 um size fraction contributed 60 % to total integrated biomass. Large autotrophic dinoflagellates, mainly Prorocentrum spp., were associated with the summer phyto-plankton maxima and accounted for>80 % of the total autotroph carbon biomass. In November and December, the presence of the large heterotrophic dinoflagellates Protoperidinium spp. and Gyro-dinium spp. contributed a high proportion of total carbon biomass. During winter, the <10 um size fraction contributed 80 % of total Chi a biomass with domination of the picoplankton size fraction. The natural assemblage included mainly naked flagellates such as species of the Prasinophyceae, Cryptophyceae and Prymnesiophyceae. During spring, picocyanobacteria occurred in sub-surface water with a maximum abundance in September of 106 cells I"1. Text Antarc* Antarctica Kerguelen Islands Southern Ocean Unknown Kerguelen Kerguelen Islands Southern Ocean |
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Open Polar |
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ftciteseerx |
language |
English |
description |
Abstract. Time series of phytoplankton biomass and taxonomic composition have been obtained for the 3 years 1992,1993 and 1994 in the northern part of the Southern Ocean (station Kerfix, 50°40'S, 68°25'E). Autotrophic biomass was low throughout the year (<0.2 mg m~3), except during a short period in summer when a maximum of 1.2 mg chlorophyll (Chi) a nr1 was reached. During winter, the integrated biomass was low (<10 mg m~2) and associated with deeply mixed water, whereas the high summer biomass (>20 mg m~2) was associated with increased water column stability. During summer blooms, the>10 um size fraction contributed 60 % to total integrated biomass. Large autotrophic dinoflagellates, mainly Prorocentrum spp., were associated with the summer phyto-plankton maxima and accounted for>80 % of the total autotroph carbon biomass. In November and December, the presence of the large heterotrophic dinoflagellates Protoperidinium spp. and Gyro-dinium spp. contributed a high proportion of total carbon biomass. During winter, the <10 um size fraction contributed 80 % of total Chi a biomass with domination of the picoplankton size fraction. The natural assemblage included mainly naked flagellates such as species of the Prasinophyceae, Cryptophyceae and Prymnesiophyceae. During spring, picocyanobacteria occurred in sub-surface water with a maximum abundance in September of 106 cells I"1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Michel Fiala Elzbieta E. Kopczynska Catherine Je Louise Oriol Gilles Vetion |
spellingShingle |
Michel Fiala Elzbieta E. Kopczynska Catherine Je Louise Oriol Gilles Vetion Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
author_facet |
Michel Fiala Elzbieta E. Kopczynska Catherine Je Louise Oriol Gilles Vetion |
author_sort |
Michel Fiala |
title |
Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
title_short |
Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
title_full |
Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
title_fullStr |
Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
title_full_unstemmed |
Seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station Kerfix, off the Kerguelen islands, Antarctica |
title_sort |
seasonal and interannual variability of size-fractionated phytoplankton biomass and community structure at station kerfix, off the kerguelen islands, antarctica |
publishDate |
1998 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.3434 http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf |
geographic |
Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Kerguelen Kerguelen Islands Southern Ocean |
genre |
Antarc* Antarctica Kerguelen Islands Southern Ocean |
genre_facet |
Antarc* Antarctica Kerguelen Islands Southern Ocean |
op_source |
http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.622.3434 http://plankt.oxfordjournals.org/content/20/7/1341.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766208367933521920 |