Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica
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 larg...
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ftsouthampton:oai:eprints.soton.ac.uk:415788 2023-07-30T03:55:29+02:00 Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica Annett, Amber L. Carson, Damien S. Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. 2010 text https://eprints.soton.ac.uk/415788/ https://eprints.soton.ac.uk/415788/1/Annett_et_al._2010_Seasonal_progression_of_diatom_assemblages_in_surface_waters_of_Ryder_Bay_Antarctica.pdf en English eng https://eprints.soton.ac.uk/415788/1/Annett_et_al._2010_Seasonal_progression_of_diatom_assemblages_in_surface_waters_of_Ryder_Bay_Antarctica.pdf Annett, Amber L., Carson, Damien S., Crosta, Xavier, Clarke, Andrew and Ganeshram, Raja S. (2010) Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica. Polar Biology, 33 (1), 13-29. (doi:10.1007/s00300-009-0681-7 <http://dx.doi.org/10.1007/s00300-009-0681-7>). Article PeerReviewed 2010 ftsouthampton https://doi.org/10.1007/s00300-009-0681-7 2023-07-09T22:19:02Z 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 University of Southampton: e-Prints Soton Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Antarctic Austral 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 |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Annett, Amber L. Carson, Damien S. Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. |
spellingShingle |
Annett, Amber L. Carson, Damien S. Crosta, Xavier Clarke, Andrew Ganeshram, Raja S. Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica |
author_facet |
Annett, Amber L. Carson, Damien S. 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 |
publishDate |
2010 |
url |
https://eprints.soton.ac.uk/415788/ https://eprints.soton.ac.uk/415788/1/Annett_et_al._2010_Seasonal_progression_of_diatom_assemblages_in_surface_waters_of_Ryder_Bay_Antarctica.pdf |
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 |
Adelaide Island Antarctic Austral Ryder Ryder Bay |
geographic_facet |
Adelaide Island Antarctic Austral 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_relation |
https://eprints.soton.ac.uk/415788/1/Annett_et_al._2010_Seasonal_progression_of_diatom_assemblages_in_surface_waters_of_Ryder_Bay_Antarctica.pdf Annett, Amber L., Carson, Damien S., Crosta, Xavier, Clarke, Andrew and Ganeshram, Raja S. (2010) Seasonal progression of diatom assemblages in surface waters of Ryder Bay, Antarctica. Polar Biology, 33 (1), 13-29. (doi:10.1007/s00300-009-0681-7 <http://dx.doi.org/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_ |
1772813489685921792 |