Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability
The major control upon abundance of planktonic foraminifera and their stable oxygen isotope (δ 18 O) signature is the seasonally linked variation in water hydrography, key to the proliferation or attenuation of ecologically beneficial constraints. The range and variance σ(δ 18 O) of planktonic foram...
Published in: | Paleoceanography and Paleoclimatology |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://research.vu.nl/en/publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 https://doi.org/10.1029/2018PA003475 https://hdl.handle.net/1871.1/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 http://www.scopus.com/inward/record.url?scp=85063336229&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063336229&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 2024-06-23T07:56:14+00:00 Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability Metcalfe, Brett Feldmeijer, Wouter Ganssen, Gerald M. 2019-03 https://research.vu.nl/en/publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 https://doi.org/10.1029/2018PA003475 https://hdl.handle.net/1871.1/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 http://www.scopus.com/inward/record.url?scp=85063336229&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063336229&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 info:eu-repo/semantics/openAccess Metcalfe , B , Feldmeijer , W & Ganssen , G M 2019 , ' Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability ' , Paleoceanography and Paleoclimatology , vol. 34 , no. 3 , pp. 374-393 . https://doi.org/10.1029/2018PA003475 individual foraminiferal analysis planktonic foraminifera seasonality single-shell analysis stable isotopes Termination III /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2019 ftvuamstcris https://doi.org/10.1029/2018PA003475 2024-05-30T00:15:08Z The major control upon abundance of planktonic foraminifera and their stable oxygen isotope (δ 18 O) signature is the seasonally linked variation in water hydrography, key to the proliferation or attenuation of ecologically beneficial constraints. The range and variance σ(δ 18 O) of planktonic foraminifera can reflect changes in either the season or depth of calcification. For a detailed reconstruction of ocean changes we employed multispecies single-specimen analysis, which allows extraction of the isotopic variability within the species for the time covered by the sample. Previous studies with pooled specimens have shown that the multiannual temperature range may be extracted. Here we investigate how seasonality can be deduced from single-specimen analysis of planktonic foraminifera combined with multiple other proxies (IRD percent, faunal abundance) from Termination III. Our single-shell isotope results show that the variance in Globigerina bulloides oxygen isotope values corresponds to the insolation at the core site. Furthermore, faunal and isotopic analyses of the polar-subpolar neogloboquadrinid species, N. pachyderma (NPS) and N. incompta, reveal an intriguing result. These species are sister taxa, representing genetically distinct species, whose relative abundance reflects warm and cold conditions. While the difference between their isotopic means should reflect the temperature difference between their distinct growing seasons, we show that this difference also has a statistically significant relationship with the spread in individual NPS δ 18 O. At an appropriate core site, this approach could be used to further constrain the length of the growing season and therefore the inherent variability recorded within proxy records. Article in Journal/Newspaper Planktonic foraminifera Vrije Universiteit Amsterdam (VU): Research Portal Paleoceanography and Paleoclimatology 34 3 374 393 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
individual foraminiferal analysis planktonic foraminifera seasonality single-shell analysis stable isotopes Termination III /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
individual foraminiferal analysis planktonic foraminifera seasonality single-shell analysis stable isotopes Termination III /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Metcalfe, Brett Feldmeijer, Wouter Ganssen, Gerald M. Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
topic_facet |
individual foraminiferal analysis planktonic foraminifera seasonality single-shell analysis stable isotopes Termination III /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The major control upon abundance of planktonic foraminifera and their stable oxygen isotope (δ 18 O) signature is the seasonally linked variation in water hydrography, key to the proliferation or attenuation of ecologically beneficial constraints. The range and variance σ(δ 18 O) of planktonic foraminifera can reflect changes in either the season or depth of calcification. For a detailed reconstruction of ocean changes we employed multispecies single-specimen analysis, which allows extraction of the isotopic variability within the species for the time covered by the sample. Previous studies with pooled specimens have shown that the multiannual temperature range may be extracted. Here we investigate how seasonality can be deduced from single-specimen analysis of planktonic foraminifera combined with multiple other proxies (IRD percent, faunal abundance) from Termination III. Our single-shell isotope results show that the variance in Globigerina bulloides oxygen isotope values corresponds to the insolation at the core site. Furthermore, faunal and isotopic analyses of the polar-subpolar neogloboquadrinid species, N. pachyderma (NPS) and N. incompta, reveal an intriguing result. These species are sister taxa, representing genetically distinct species, whose relative abundance reflects warm and cold conditions. While the difference between their isotopic means should reflect the temperature difference between their distinct growing seasons, we show that this difference also has a statistically significant relationship with the spread in individual NPS δ 18 O. At an appropriate core site, this approach could be used to further constrain the length of the growing season and therefore the inherent variability recorded within proxy records. |
format |
Article in Journal/Newspaper |
author |
Metcalfe, Brett Feldmeijer, Wouter Ganssen, Gerald M. |
author_facet |
Metcalfe, Brett Feldmeijer, Wouter Ganssen, Gerald M. |
author_sort |
Metcalfe, Brett |
title |
Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
title_short |
Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
title_full |
Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
title_fullStr |
Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
title_full_unstemmed |
Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
title_sort |
oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability |
publishDate |
2019 |
url |
https://research.vu.nl/en/publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 https://doi.org/10.1029/2018PA003475 https://hdl.handle.net/1871.1/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 http://www.scopus.com/inward/record.url?scp=85063336229&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85063336229&partnerID=8YFLogxK |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Metcalfe , B , Feldmeijer , W & Ganssen , G M 2019 , ' Oxygen isotope variability of planktonic foraminifera provide clues to past upper ocean seasonal variability ' , Paleoceanography and Paleoclimatology , vol. 34 , no. 3 , pp. 374-393 . https://doi.org/10.1029/2018PA003475 |
op_relation |
https://research.vu.nl/en/publications/d799a2f5-5fa0-42a2-9fce-3ce7c5a934d3 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2018PA003475 |
container_title |
Paleoceanography and Paleoclimatology |
container_volume |
34 |
container_issue |
3 |
container_start_page |
374 |
op_container_end_page |
393 |
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1802649212684337152 |