Biometric measurements of Fragilariopsis kerguelensis, 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
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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ftdatacite:10.1594/pangaea.782735 2023-05-15T14:04:23+02:00 Biometric measurements of Fragilariopsis kerguelensis, 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 Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela 2012 application/zip https://dx.doi.org/10.1594/pangaea.782735 https://doi.pangaea.de/10.1594/PANGAEA.782735 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2011pa002187 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core CTD/Rosette Bongo net Piston corer BGR type Gravity corer Kiel type Leg177 ANT-XVIII/2 ANT-XXI/3 ANT-VI/3 ANT-XI/2 Joides Resolution Polarstern International Polar Year 2007-2008 IPY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo article Supplementary Collection of Datasets Collection 2012 ftdatacite https://doi.org/10.1594/pangaea.782735 https://doi.org/10.1029/2011pa002187 2022-02-09T12:04:35Z 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. : Data included in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 Article in Journal/Newspaper Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Medley ENVELOPE(-56.036,-56.036,-62.996,-62.996) Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core CTD/Rosette Bongo net Piston corer BGR type Gravity corer Kiel type Leg177 ANT-XVIII/2 ANT-XXI/3 ANT-VI/3 ANT-XI/2 Joides Resolution Polarstern International Polar Year 2007-2008 IPY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
Composite Core CTD/Rosette Bongo net Piston corer BGR type Gravity corer Kiel type Leg177 ANT-XVIII/2 ANT-XXI/3 ANT-VI/3 ANT-XI/2 Joides Resolution Polarstern International Polar Year 2007-2008 IPY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Cortese, Giuseppe Gersonde, Rainer Maschner, Katharina Medley, Pamela Biometric measurements of Fragilariopsis kerguelensis, 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 |
topic_facet |
Composite Core CTD/Rosette Bongo net Piston corer BGR type Gravity corer Kiel type Leg177 ANT-XVIII/2 ANT-XXI/3 ANT-VI/3 ANT-XI/2 Joides Resolution Polarstern International Polar Year 2007-2008 IPY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
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. : Data included in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 |
format |
Article in Journal/Newspaper |
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, 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 |
title_short |
Biometric measurements of Fragilariopsis kerguelensis, 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 |
title_full |
Biometric measurements of Fragilariopsis kerguelensis, 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 |
title_fullStr |
Biometric measurements of Fragilariopsis kerguelensis, 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 |
title_full_unstemmed |
Biometric measurements of Fragilariopsis kerguelensis, 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 |
title_sort |
biometric measurements of fragilariopsis kerguelensis, 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 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2012 |
url |
https://dx.doi.org/10.1594/pangaea.782735 https://doi.pangaea.de/10.1594/PANGAEA.782735 |
long_lat |
ENVELOPE(-56.036,-56.036,-62.996,-62.996) |
geographic |
Antarctic Medley Southern Ocean The Antarctic |
geographic_facet |
Antarctic Medley Southern Ocean The Antarctic |
genre |
Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic International Polar Year IPY Sea ice Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/2011pa002187 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.782735 https://doi.org/10.1029/2011pa002187 |
_version_ |
1766275447131209728 |