Biometric measurements of Fragilariopsis kerguelensis
The valve area of Fragilariopsis kerguelensis, the most abundant diatom species in the Southern Ocean, strongly changes in size in response to varying conditions in the surface ocean. We examined the link, both in two iron fertilization experiments and in sediment samples covering several glacial Te...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.782735 2024-09-15T17:41:40+00:00 Biometric measurements of Fragilariopsis kerguelensis Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela MEDIAN LATITUDE: -48.029757 * MEDIAN LONGITUDE: 0.832287 * SOUTH-BOUND LATITUDE: -50.157500 * WEST-BOUND LONGITUDE: -15.333330 * NORTH-BOUND LATITUDE: -44.153330 * EAST-BOUND LONGITUDE: 21.118333 * DATE/TIME START: 1988-03-12T14:37:00 * DATE/TIME END: 2004-03-20T03:17:00 2012 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.782735 https://doi.org/10.1594/PANGAEA.782735 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.782735 https://doi.org/10.1594/PANGAEA.782735 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Cortese, Giuseppe; Gersonde, Rainer; Maschner, Katharina; Medley, Pamela (2012): Glacial-interglacial size variability in the diatom Fragilariopsis kerguelensis: Possible iron/dust controls? Paleoceanography, 27, PA1208, https://doi.org/10.1029/2011PA002187 177-1093 ANT-VI/3 ANT-XI/2 ANT-XVIII/2 ANT-XXI/3 Atlantic Indik Ridge AWI_Paleo BONGO Bongo net COMPCORE Composite Core CTD/Rosette CTD118 CTD121 CTD146 CTD15 CTD150 CTD18 CTD47 CTD55 CTD64 CTD67 CTD71 CTD-RO Gravity corer (Kiel type) International Polar Year (2007-2008) IPY Joides Resolution KL Leg177 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS12 PS12/557 PS1654-2 PS2498-1 PS2499-5 PS28 PS28/304 PS28/314 PS58/011-3 PS58/012-4 PS58/014-4 PS58/038-7 PS58/042-5 PS58/045-9 PS58/046-5 PS58/048-5 PS58/088-7 dataset publication series 2012 ftpangaea https://doi.org/10.1594/PANGAEA.78273510.1029/2011PA002187 2024-08-21T00:02:25Z The valve area of Fragilariopsis kerguelensis, the most abundant diatom species in the Southern Ocean, strongly changes in size in response to varying conditions in the surface ocean. We examined the link, both in two iron fertilization experiments and in sediment samples covering several glacial Terminations, between size variability in this species and environmental conditions across the Antarctic Polar Front, including sea ice extent, sea surface temperature, and the input of eolian dust. The iron fertilization experiments show valve area to be positively correlated with iron concentrations in ambient waters, which suggests the possibility of a causal relation between valve size of Fragilariopsis kerguelensis and ambient surface water iron concentration. Larger valves are usually found during glacial times and thus seem to be related to lower sea surface temperature and wider sea ice coverage. Moreover, our results indicate that there usually is a strong correlation between larger valve size and increased input of eolian dust to the Southern Ocean. However, this correlation, obvious for the fertilization experiments and for glacial Terminations I, II, III, and V, does not seem to be valid for Termination VI, where size appears to be inversely correlated to dust input. Other/Unknown Material Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-15.333330,21.118333,-44.153330,-50.157500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
177-1093 ANT-VI/3 ANT-XI/2 ANT-XVIII/2 ANT-XXI/3 Atlantic Indik Ridge AWI_Paleo BONGO Bongo net COMPCORE Composite Core CTD/Rosette CTD118 CTD121 CTD146 CTD15 CTD150 CTD18 CTD47 CTD55 CTD64 CTD67 CTD71 CTD-RO Gravity corer (Kiel type) International Polar Year (2007-2008) IPY Joides Resolution KL Leg177 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS12 PS12/557 PS1654-2 PS2498-1 PS2499-5 PS28 PS28/304 PS28/314 PS58/011-3 PS58/012-4 PS58/014-4 PS58/038-7 PS58/042-5 PS58/045-9 PS58/046-5 PS58/048-5 PS58/088-7 |
spellingShingle |
177-1093 ANT-VI/3 ANT-XI/2 ANT-XVIII/2 ANT-XXI/3 Atlantic Indik Ridge AWI_Paleo BONGO Bongo net COMPCORE Composite Core CTD/Rosette CTD118 CTD121 CTD146 CTD15 CTD150 CTD18 CTD47 CTD55 CTD64 CTD67 CTD71 CTD-RO Gravity corer (Kiel type) International Polar Year (2007-2008) IPY Joides Resolution KL Leg177 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS12 PS12/557 PS1654-2 PS2498-1 PS2499-5 PS28 PS28/304 PS28/314 PS58/011-3 PS58/012-4 PS58/014-4 PS58/038-7 PS58/042-5 PS58/045-9 PS58/046-5 PS58/048-5 PS58/088-7 Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela Biometric measurements of Fragilariopsis kerguelensis |
topic_facet |
177-1093 ANT-VI/3 ANT-XI/2 ANT-XVIII/2 ANT-XXI/3 Atlantic Indik Ridge AWI_Paleo BONGO Bongo net COMPCORE Composite Core CTD/Rosette CTD118 CTD121 CTD146 CTD15 CTD150 CTD18 CTD47 CTD55 CTD64 CTD67 CTD71 CTD-RO Gravity corer (Kiel type) International Polar Year (2007-2008) IPY Joides Resolution KL Leg177 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Piston corer (BGR type) Polarstern PS12 PS12/557 PS1654-2 PS2498-1 PS2499-5 PS28 PS28/304 PS28/314 PS58/011-3 PS58/012-4 PS58/014-4 PS58/038-7 PS58/042-5 PS58/045-9 PS58/046-5 PS58/048-5 PS58/088-7 |
description |
The valve area of Fragilariopsis kerguelensis, the most abundant diatom species in the Southern Ocean, strongly changes in size in response to varying conditions in the surface ocean. We examined the link, both in two iron fertilization experiments and in sediment samples covering several glacial Terminations, between size variability in this species and environmental conditions across the Antarctic Polar Front, including sea ice extent, sea surface temperature, and the input of eolian dust. The iron fertilization experiments show valve area to be positively correlated with iron concentrations in ambient waters, which suggests the possibility of a causal relation between valve size of Fragilariopsis kerguelensis and ambient surface water iron concentration. Larger valves are usually found during glacial times and thus seem to be related to lower sea surface temperature and wider sea ice coverage. Moreover, our results indicate that there usually is a strong correlation between larger valve size and increased input of eolian dust to the Southern Ocean. However, this correlation, obvious for the fertilization experiments and for glacial Terminations I, II, III, and V, does not seem to be valid for Termination VI, where size appears to be inversely correlated to dust input. |
format |
Other/Unknown Material |
author |
Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela |
author_facet |
Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela |
author_sort |
Cortese, Giuseppe |
title |
Biometric measurements of Fragilariopsis kerguelensis |
title_short |
Biometric measurements of Fragilariopsis kerguelensis |
title_full |
Biometric measurements of Fragilariopsis kerguelensis |
title_fullStr |
Biometric measurements of Fragilariopsis kerguelensis |
title_full_unstemmed |
Biometric measurements of Fragilariopsis kerguelensis |
title_sort |
biometric measurements of fragilariopsis kerguelensis |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.782735 https://doi.org/10.1594/PANGAEA.782735 |
op_coverage |
MEDIAN LATITUDE: -48.029757 * MEDIAN LONGITUDE: 0.832287 * SOUTH-BOUND LATITUDE: -50.157500 * WEST-BOUND LONGITUDE: -15.333330 * NORTH-BOUND LATITUDE: -44.153330 * EAST-BOUND LONGITUDE: 21.118333 * DATE/TIME START: 1988-03-12T14:37:00 * DATE/TIME END: 2004-03-20T03:17:00 |
long_lat |
ENVELOPE(-15.333330,21.118333,-44.153330,-50.157500) |
genre |
Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean |
op_source |
Supplement to: Cortese, Giuseppe; Gersonde, Rainer; Maschner, Katharina; Medley, Pamela (2012): Glacial-interglacial size variability in the diatom Fragilariopsis kerguelensis: Possible iron/dust controls? Paleoceanography, 27, PA1208, https://doi.org/10.1029/2011PA002187 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.782735 https://doi.org/10.1594/PANGAEA.782735 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.78273510.1029/2011PA002187 |
_version_ |
1810487909168447488 |