Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights
Abstract This study presents culture experiments of the cold water species Neogloboquadrina pachyderma (sinistral) and provides new insights into the incorporation of elements in foraminiferal calcite of common and newly established proxies for paleoenvironmental applications (shell Mg/Ca, Sr/Ca and...
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Springer Science and Business Media LLC
2021
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Online Access: | http://dx.doi.org/10.1007/s00367-020-00677-1 http://link.springer.com/content/pdf/10.1007/s00367-020-00677-1.pdf http://link.springer.com/article/10.1007/s00367-020-00677-1/fulltext.html |
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crspringernat:10.1007/s00367-020-00677-1 2023-05-15T14:06:18+02:00 Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights Bertlich, Jacqueline Gussone, Nikolaus Berndt, Jasper Arlinghaus, Heinrich F. Dieckmann, Gerhard S. Deutsche Forschungsgemeinschaft GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel 2021 http://dx.doi.org/10.1007/s00367-020-00677-1 http://link.springer.com/content/pdf/10.1007/s00367-020-00677-1.pdf http://link.springer.com/article/10.1007/s00367-020-00677-1/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Geo-Marine Letters volume 41, issue 1 ISSN 0276-0460 1432-1157 Earth and Planetary Sciences (miscellaneous) Geotechnical Engineering and Engineering Geology Environmental Science (miscellaneous) Oceanography journal-article 2021 crspringernat https://doi.org/10.1007/s00367-020-00677-1 2022-01-04T15:25:58Z Abstract This study presents culture experiments of the cold water species Neogloboquadrina pachyderma (sinistral) and provides new insights into the incorporation of elements in foraminiferal calcite of common and newly established proxies for paleoenvironmental applications (shell Mg/Ca, Sr/Ca and Na/Ca). Specimens were collected from sea ice during the austral winter in the Antarctic Weddell Sea and subsequently cultured at different salinities and a constant temperature. Incorporation of the fluorescent dye calcein showed new chamber formation in the culture at salinities of 30, 31, and 69. Cultured foraminifers at salinities of 46 to 83 only revealed chamber wall thickening, indicated by the fluorescence of the whole shell. Signs of reproduction and the associated gametogenic calcite were not observed in any of the culture experiments. Trace element analyses were performed using an electron microprobe, which revealed increased shell Mg/Ca, Sr/Ca, and Na/Ca values at higher salinities, with Mg/Ca showing the lowest sensitivity to salinity changes. This study enhances the knowledge about unusually high element concentrations in foraminifera shells from high latitudes. Neogloboquadrina pachyderma appears to be able to calcify in the Antarctic sea ice within brine channels, which have low temperatures and exceptionally high salinities due to ongoing sea ice formation. Article in Journal/Newspaper Antarc* Antarctic Neogloboquadrina pachyderma Sea ice Weddell Sea Springer Nature (via Crossref) Antarctic Austral The Antarctic Weddell Weddell Sea Geo-Marine Letters 41 1 |
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Open Polar |
collection |
Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Earth and Planetary Sciences (miscellaneous) Geotechnical Engineering and Engineering Geology Environmental Science (miscellaneous) Oceanography |
spellingShingle |
Earth and Planetary Sciences (miscellaneous) Geotechnical Engineering and Engineering Geology Environmental Science (miscellaneous) Oceanography Bertlich, Jacqueline Gussone, Nikolaus Berndt, Jasper Arlinghaus, Heinrich F. Dieckmann, Gerhard S. Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
topic_facet |
Earth and Planetary Sciences (miscellaneous) Geotechnical Engineering and Engineering Geology Environmental Science (miscellaneous) Oceanography |
description |
Abstract This study presents culture experiments of the cold water species Neogloboquadrina pachyderma (sinistral) and provides new insights into the incorporation of elements in foraminiferal calcite of common and newly established proxies for paleoenvironmental applications (shell Mg/Ca, Sr/Ca and Na/Ca). Specimens were collected from sea ice during the austral winter in the Antarctic Weddell Sea and subsequently cultured at different salinities and a constant temperature. Incorporation of the fluorescent dye calcein showed new chamber formation in the culture at salinities of 30, 31, and 69. Cultured foraminifers at salinities of 46 to 83 only revealed chamber wall thickening, indicated by the fluorescence of the whole shell. Signs of reproduction and the associated gametogenic calcite were not observed in any of the culture experiments. Trace element analyses were performed using an electron microprobe, which revealed increased shell Mg/Ca, Sr/Ca, and Na/Ca values at higher salinities, with Mg/Ca showing the lowest sensitivity to salinity changes. This study enhances the knowledge about unusually high element concentrations in foraminifera shells from high latitudes. Neogloboquadrina pachyderma appears to be able to calcify in the Antarctic sea ice within brine channels, which have low temperatures and exceptionally high salinities due to ongoing sea ice formation. |
author2 |
Deutsche Forschungsgemeinschaft GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel |
format |
Article in Journal/Newspaper |
author |
Bertlich, Jacqueline Gussone, Nikolaus Berndt, Jasper Arlinghaus, Heinrich F. Dieckmann, Gerhard S. |
author_facet |
Bertlich, Jacqueline Gussone, Nikolaus Berndt, Jasper Arlinghaus, Heinrich F. Dieckmann, Gerhard S. |
author_sort |
Bertlich, Jacqueline |
title |
Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
title_short |
Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
title_full |
Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
title_fullStr |
Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
title_full_unstemmed |
Salinity effects on cultured Neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
title_sort |
salinity effects on cultured neogloboquadrina pachyderma (sinistral) from high latitudes: new paleoenvironmental insights |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s00367-020-00677-1 http://link.springer.com/content/pdf/10.1007/s00367-020-00677-1.pdf http://link.springer.com/article/10.1007/s00367-020-00677-1/fulltext.html |
geographic |
Antarctic Austral The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Austral The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Neogloboquadrina pachyderma Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Neogloboquadrina pachyderma Sea ice Weddell Sea |
op_source |
Geo-Marine Letters volume 41, issue 1 ISSN 0276-0460 1432-1157 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00367-020-00677-1 |
container_title |
Geo-Marine Letters |
container_volume |
41 |
container_issue |
1 |
_version_ |
1766278017135411200 |