Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth
The translation of the original seawater signal (i.e. ambient temperature and δ 18 O sw ) into distinct chambers of a single shell of a foraminifer during calcification can influence our interpretation of surface ocean conditions of the past, when based upon oxygen and carbon stable isotope geochemi...
Published in: | Biogeosciences |
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2019
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Online Access: | https://research.vu.nl/en/publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 https://doi.org/10.5194/bg-16-643-2019 https://hdl.handle.net/1871.1/755b1376-2d64-40e9-b92a-2e2e523c9ad6 http://www.scopus.com/inward/record.url?scp=85061035243&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85061035243&partnerID=8YFLogxK http://www.mendeley.com/research/oxygen-isotope-composition-final-chamber-planktic-foraminifera-provides-evidence-vertical-migration |
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ftvuamstcris:oai:research.vu.nl:publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 2024-06-23T07:56:18+00:00 Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth Pracht, Hilde Metcalfe, Brett Peeters, Frank J.C. 2019-02-01 https://research.vu.nl/en/publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 https://doi.org/10.5194/bg-16-643-2019 https://hdl.handle.net/1871.1/755b1376-2d64-40e9-b92a-2e2e523c9ad6 http://www.scopus.com/inward/record.url?scp=85061035243&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85061035243&partnerID=8YFLogxK http://www.mendeley.com/research/oxygen-isotope-composition-final-chamber-planktic-foraminifera-provides-evidence-vertical-migration eng eng https://research.vu.nl/en/publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 info:eu-repo/semantics/openAccess Pracht , H , Metcalfe , B & Peeters , F J C 2019 , ' Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth ' , Biogeosciences , vol. 16 , no. 2 , pp. 643-661 . https://doi.org/10.5194/bg-16-643-2019 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2019 ftvuamstcris https://doi.org/10.5194/bg-16-643-2019 2024-06-06T00:14:55Z The translation of the original seawater signal (i.e. ambient temperature and δ 18 O sw ) into distinct chambers of a single shell of a foraminifer during calcification can influence our interpretation of surface ocean conditions of the past, when based upon oxygen and carbon stable isotope geochemistry. In this study three different hypotheses were tested to gain more insight into biological and ecological processes that influence the resultant composition of stable isotopes of oxygen (δ 18 O) in the shells of planktonic foraminifera. These hypotheses were related to the shell size; the differences in isotopic composition between the final chamber and the remaining shell; and the differences between different species. Shells of Trilobatus sacculifer, Globigerinoides ruber white and Neogloboquadrina dutertrei were picked from the top of multi-core GS07- 150-24, of modern age, offshore of north-eastern Brazil (3°46.474′ S, 37°03.849′ W) and analysed for single-shell and single-chamber stable isotope analysis. We show that the mean value of δ 18 O of the final chambers (δ 18 O F ) is 0.2%±0.4% (1ω) higher than the mean value δ 18 O of the test minus the final chamber (δ 18 O <F ) of T. sacculifer. The formation of the final chamber happens at temperatures that are approximately 1 °C cooler than the chambers formed prior, suggesting both ontogenetic depth migration to deeper water and a potential offset from the surface signal. Furthermore, we show that there is no statistical difference in the δ 18 Osacculifer values of shells of three different size classes of T. sacculifer, although the pattern between the different size classes indicates depth migration during the life and growth of T. sacculifer. Comparison of vital effect corrected δ 18 O shell between T. sacculifer, G. ruber white and N. dutertrei suggests that G. ruber has a slightly shallower depth habitat (∼ 90-120 m) compared to the other two species (∼ 100-130 m). Disentangling depth vs. seasonal habitat is complicated given the commonality between ... Article in Journal/Newspaper Planktonic foraminifera Vrije Universiteit Amsterdam (VU): Research Portal Biogeosciences 16 2 643 661 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Pracht, Hilde Metcalfe, Brett Peeters, Frank J.C. Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The translation of the original seawater signal (i.e. ambient temperature and δ 18 O sw ) into distinct chambers of a single shell of a foraminifer during calcification can influence our interpretation of surface ocean conditions of the past, when based upon oxygen and carbon stable isotope geochemistry. In this study three different hypotheses were tested to gain more insight into biological and ecological processes that influence the resultant composition of stable isotopes of oxygen (δ 18 O) in the shells of planktonic foraminifera. These hypotheses were related to the shell size; the differences in isotopic composition between the final chamber and the remaining shell; and the differences between different species. Shells of Trilobatus sacculifer, Globigerinoides ruber white and Neogloboquadrina dutertrei were picked from the top of multi-core GS07- 150-24, of modern age, offshore of north-eastern Brazil (3°46.474′ S, 37°03.849′ W) and analysed for single-shell and single-chamber stable isotope analysis. We show that the mean value of δ 18 O of the final chambers (δ 18 O F ) is 0.2%±0.4% (1ω) higher than the mean value δ 18 O of the test minus the final chamber (δ 18 O <F ) of T. sacculifer. The formation of the final chamber happens at temperatures that are approximately 1 °C cooler than the chambers formed prior, suggesting both ontogenetic depth migration to deeper water and a potential offset from the surface signal. Furthermore, we show that there is no statistical difference in the δ 18 Osacculifer values of shells of three different size classes of T. sacculifer, although the pattern between the different size classes indicates depth migration during the life and growth of T. sacculifer. Comparison of vital effect corrected δ 18 O shell between T. sacculifer, G. ruber white and N. dutertrei suggests that G. ruber has a slightly shallower depth habitat (∼ 90-120 m) compared to the other two species (∼ 100-130 m). Disentangling depth vs. seasonal habitat is complicated given the commonality between ... |
format |
Article in Journal/Newspaper |
author |
Pracht, Hilde Metcalfe, Brett Peeters, Frank J.C. |
author_facet |
Pracht, Hilde Metcalfe, Brett Peeters, Frank J.C. |
author_sort |
Pracht, Hilde |
title |
Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
title_short |
Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
title_full |
Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
title_fullStr |
Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
title_full_unstemmed |
Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
title_sort |
oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth |
publishDate |
2019 |
url |
https://research.vu.nl/en/publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 https://doi.org/10.5194/bg-16-643-2019 https://hdl.handle.net/1871.1/755b1376-2d64-40e9-b92a-2e2e523c9ad6 http://www.scopus.com/inward/record.url?scp=85061035243&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85061035243&partnerID=8YFLogxK http://www.mendeley.com/research/oxygen-isotope-composition-final-chamber-planktic-foraminifera-provides-evidence-vertical-migration |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Pracht , H , Metcalfe , B & Peeters , F J C 2019 , ' Oxygen isotope composition of the final chamber of planktic foraminifera provides evidence of vertical migration and depth-integrated growth ' , Biogeosciences , vol. 16 , no. 2 , pp. 643-661 . https://doi.org/10.5194/bg-16-643-2019 |
op_relation |
https://research.vu.nl/en/publications/755b1376-2d64-40e9-b92a-2e2e523c9ad6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-16-643-2019 |
container_title |
Biogeosciences |
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16 |
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2 |
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643 |
op_container_end_page |
661 |
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