Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica
International audience Phytoplankton assemblages from seasonally sea-ice covered Ryder Bay (Adelaide Island, Antarctica) were studied over three austral summers (2004-2007), to link sea-ice variability and environmental conditions with algal speciation. Typical of near-shore Antarctic waters, biomas...
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Online Access: | https://hal.archives-ouvertes.fr/hal-02105660 https://doi.org/10.1007/s00300-009-0681-7 |
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ftccsdartic:oai:HAL:hal-02105660v1 2023-05-15T13:03:55+02:00 Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica Annett, Amber L. Carson, Damien, Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. Grant Institute University of Edinburgh Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2010-01 https://hal.archives-ouvertes.fr/hal-02105660 https://doi.org/10.1007/s00300-009-0681-7 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-009-0681-7 hal-02105660 https://hal.archives-ouvertes.fr/hal-02105660 doi:10.1007/s00300-009-0681-7 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.archives-ouvertes.fr/hal-02105660 Polar Biology, Springer Verlag, 2010, 33 (1), pp.13-29. ⟨10.1007/s00300-009-0681-7⟩ Proboscia inermis Coastal Antarctic Sea-ice Diatoms Phytoplankton Seasonality [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1007/s00300-009-0681-7 2021-11-28T00:42:22Z International audience Phytoplankton assemblages from seasonally sea-ice covered Ryder Bay (Adelaide Island, Antarctica) were studied over three austral summers (2004-2007), to link sea-ice variability and environmental conditions with algal speciation. Typical of near-shore Antarctic waters, biomass was dominated by large diatoms, although the prymnesiophyte Phaeocystis antarctica was numerically dominant. Although there was considerable interannual variability between main diatom species, high biomass of certain species or species groups corresponded consistently to certain phases of seasonal progression. We present the first documentation of an extensive bloom of the late-season diatom Proboscia inermis in February 2006, accounting for over 90% of diatom biomass. At this time, water column stratification and nutrient drawdown were high relative to other periods of the study, although carbon export was relatively low. Melt water flux in this region promotes well-stratified surface waters and high chlorophyll levels, but not necessarily concurrent increases in export production relative to seasons with lower freshwater inputs. Article in Journal/Newspaper Adelaide Island Antarc* Antarctic Antarctica Polar Biology Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Austral Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Ryder ENVELOPE(-68.333,-68.333,-67.566,-67.566) Ryder Bay ENVELOPE(-68.333,-68.333,-67.567,-67.567) Polar Biology 33 1 13 29 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Proboscia inermis Coastal Antarctic Sea-ice Diatoms Phytoplankton Seasonality [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Proboscia inermis Coastal Antarctic Sea-ice Diatoms Phytoplankton Seasonality [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Annett, Amber L. Carson, Damien, Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
topic_facet |
Proboscia inermis Coastal Antarctic Sea-ice Diatoms Phytoplankton Seasonality [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Phytoplankton assemblages from seasonally sea-ice covered Ryder Bay (Adelaide Island, Antarctica) were studied over three austral summers (2004-2007), to link sea-ice variability and environmental conditions with algal speciation. Typical of near-shore Antarctic waters, biomass was dominated by large diatoms, although the prymnesiophyte Phaeocystis antarctica was numerically dominant. Although there was considerable interannual variability between main diatom species, high biomass of certain species or species groups corresponded consistently to certain phases of seasonal progression. We present the first documentation of an extensive bloom of the late-season diatom Proboscia inermis in February 2006, accounting for over 90% of diatom biomass. At this time, water column stratification and nutrient drawdown were high relative to other periods of the study, although carbon export was relatively low. Melt water flux in this region promotes well-stratified surface waters and high chlorophyll levels, but not necessarily concurrent increases in export production relative to seasons with lower freshwater inputs. |
author2 |
Grant Institute University of Edinburgh Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Annett, Amber L. Carson, Damien, Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. |
author_facet |
Annett, Amber L. Carson, Damien, Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. |
author_sort |
Annett, Amber L. |
title |
Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
title_short |
Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
title_full |
Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
title_fullStr |
Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
title_full_unstemmed |
Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
title_sort |
seasonal progression of diatom assemblages in surface waters of ryder bay, antarctica |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-02105660 https://doi.org/10.1007/s00300-009-0681-7 |
long_lat |
ENVELOPE(-68.914,-68.914,-67.762,-67.762) ENVELOPE(-68.333,-68.333,-67.566,-67.566) ENVELOPE(-68.333,-68.333,-67.567,-67.567) |
geographic |
Antarctic Austral Adelaide Island Ryder Ryder Bay |
geographic_facet |
Antarctic Austral Adelaide Island Ryder Ryder Bay |
genre |
Adelaide Island Antarc* Antarctic Antarctica Polar Biology Sea ice |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctica Polar Biology Sea ice |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.archives-ouvertes.fr/hal-02105660 Polar Biology, Springer Verlag, 2010, 33 (1), pp.13-29. ⟨10.1007/s00300-009-0681-7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-009-0681-7 hal-02105660 https://hal.archives-ouvertes.fr/hal-02105660 doi:10.1007/s00300-009-0681-7 |
op_doi |
https://doi.org/10.1007/s00300-009-0681-7 |
container_title |
Polar Biology |
container_volume |
33 |
container_issue |
1 |
container_start_page |
13 |
op_container_end_page |
29 |
_version_ |
1766348265461121024 |