Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death
The potential for preservation of thecosome pteropods is thought to be largely governed by the chemical stability of their delicate aragonitic shells in seawater. However, sediment trap studies have found that significant carbonate dissolution can occur above the carbonate saturation horizon. Here w...
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Dryad
2020
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Online Access: | https://doi.org/10.5061/dryad.8ts30t5 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::9cbb1d34a98cddb04040a0a9e4bdbb30 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::9cbb1d34a98cddb04040a0a9e4bdbb30 2023-05-15T13:32:31+02:00 Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death Oakes, Rosie L. Peck, Victoria L. Manno, Clara Bralower, Timothy J. 2020-05-01 https://doi.org/10.5061/dryad.8ts30t5 en eng Dryad http://dx.doi.org/10.5061/dryad.8ts30t5 https://dx.doi.org/10.5061/dryad.8ts30t5 lic_creative-commons 10.5061/dryad.8ts30t5 oai:easy.dans.knaw.nl:easy-dataset:127723 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:127723 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 taphonomy Limacina helicina antarctica Modern decay plankton pteropod Holocene Life sciences medicine and health care envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.8ts30t5 2023-01-22T16:53:09Z The potential for preservation of thecosome pteropods is thought to be largely governed by the chemical stability of their delicate aragonitic shells in seawater. However, sediment trap studies have found that significant carbonate dissolution can occur above the carbonate saturation horizon. Here we present the results from experiments conducted on two cruises to the Scotia Sea to directly test whether the breakdown of the organic pteropod body influences shell dissolution. We find that, on the timescales of three to thirteen days, the oxidation of organic matter within the shells of dead pteropods is a stronger driver of shell dissolution than the saturation state of seawater. Three to four days after death, shells became milky white and nano‐SEM images reveal smoothing of internal surface features and increased shell porosity, both indicative of aragonite dissolution. These findings have implications for the interpretation of the condition of pteropod shells from sediment traps and the fossil record, as well as for understanding the processes controlling particulate carbonate export from the surface ocean. Ambient seawater (omega 1.40) - liveFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 live specimens of L.helicina antarctica incubated for 13 days in ambient seawater (omega aragonite = 1.40)1) Ambient seawater (omega 1.40) - live.zipAmbient seawater (omega 1.40) - decayFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 decaying specimens of L.helicina antarctica incubated for 13 days in ambient seawater (omega aragonite = 1.40)2) Ambient seawater (omega 1.40) - decay.zipSlightly undersaturated seawater (omega 0.89) - decayFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 decaying specimens of L.helicina antarctica incubated for 13 days in seawater adjusted to an aragonite saturation of ... Dataset Antarc* Antarctica Limacina helicina Scotia Sea Unknown Scotia Sea |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
taphonomy Limacina helicina antarctica Modern decay plankton pteropod Holocene Life sciences medicine and health care envir geo |
spellingShingle |
taphonomy Limacina helicina antarctica Modern decay plankton pteropod Holocene Life sciences medicine and health care envir geo Oakes, Rosie L. Peck, Victoria L. Manno, Clara Bralower, Timothy J. Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
topic_facet |
taphonomy Limacina helicina antarctica Modern decay plankton pteropod Holocene Life sciences medicine and health care envir geo |
description |
The potential for preservation of thecosome pteropods is thought to be largely governed by the chemical stability of their delicate aragonitic shells in seawater. However, sediment trap studies have found that significant carbonate dissolution can occur above the carbonate saturation horizon. Here we present the results from experiments conducted on two cruises to the Scotia Sea to directly test whether the breakdown of the organic pteropod body influences shell dissolution. We find that, on the timescales of three to thirteen days, the oxidation of organic matter within the shells of dead pteropods is a stronger driver of shell dissolution than the saturation state of seawater. Three to four days after death, shells became milky white and nano‐SEM images reveal smoothing of internal surface features and increased shell porosity, both indicative of aragonite dissolution. These findings have implications for the interpretation of the condition of pteropod shells from sediment traps and the fossil record, as well as for understanding the processes controlling particulate carbonate export from the surface ocean. Ambient seawater (omega 1.40) - liveFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 live specimens of L.helicina antarctica incubated for 13 days in ambient seawater (omega aragonite = 1.40)1) Ambient seawater (omega 1.40) - live.zipAmbient seawater (omega 1.40) - decayFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 decaying specimens of L.helicina antarctica incubated for 13 days in ambient seawater (omega aragonite = 1.40)2) Ambient seawater (omega 1.40) - decay.zipSlightly undersaturated seawater (omega 0.89) - decayFile contains 5 folders with the reconstructed CT data (*.DICOM format) and scan set-up information (*.pca format) for the 5 decaying specimens of L.helicina antarctica incubated for 13 days in seawater adjusted to an aragonite saturation of ... |
format |
Dataset |
author |
Oakes, Rosie L. Peck, Victoria L. Manno, Clara Bralower, Timothy J. |
author_facet |
Oakes, Rosie L. Peck, Victoria L. Manno, Clara Bralower, Timothy J. |
author_sort |
Oakes, Rosie L. |
title |
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
title_short |
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
title_full |
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
title_fullStr |
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
title_full_unstemmed |
Data from: Degradation of internal organic matter is the main control on pteropod shell dissolution after death |
title_sort |
data from: degradation of internal organic matter is the main control on pteropod shell dissolution after death |
publisher |
Dryad |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.8ts30t5 |
geographic |
Scotia Sea |
geographic_facet |
Scotia Sea |
genre |
Antarc* Antarctica Limacina helicina Scotia Sea |
genre_facet |
Antarc* Antarctica Limacina helicina Scotia Sea |
op_source |
10.5061/dryad.8ts30t5 oai:easy.dans.knaw.nl:easy-dataset:127723 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:127723 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 |
op_relation |
http://dx.doi.org/10.5061/dryad.8ts30t5 https://dx.doi.org/10.5061/dryad.8ts30t5 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.8ts30t5 |
_version_ |
1766028180595933184 |