Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research?
Seawater temperature is an essential quantity for paleoclimatological and paleoecological studies. A potential archive that can provide century-long, temporally well-constrained and high-resolution temperature proxy data is available in the form of bivalve shells. However, the number of well-accepte...
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Johannes Gutenberg-Universität Mainz
2023
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ftunivmainzpubl:oai:openscience.ub.uni-mainz.de:20.500.12030/9666 2024-06-02T08:02:56+00:00 Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? Brosset, Cornélia Höche, Nils Witbaard, Rob Nishida, Kozue Shirai, Kotaro Mertz-Kraus, Regina Schöne, Bernd R. 2023 https://openscience.ub.uni-mainz.de/handle/20.500.12030/9666 https://hdl.handle.net/20.500.12030/9666 https://doi.org/10.25358/openscience-9648 eng eng Johannes Gutenberg-Universität Mainz http://doi.org/10.25358/openscience-9648 https://openscience.ub.uni-mainz.de/handle/20.500.12030/9666 2296-7745 CC BY https://creativecommons.org/licenses/by/4.0/ openAccess Frontiers in Marine Science. 10. -. 2023. -. -. 1279164 ddc:540 ddc:550 ddc:560 ddc:570 ddc:590 Zeitschriftenaufsatz publishedVersion Text doc-type:article 2023 ftunivmainzpubl https://doi.org/20.500.12030/966610.25358/openscience-9648 2024-05-06T01:16:43Z Seawater temperature is an essential quantity for paleoclimatological and paleoecological studies. A potential archive that can provide century-long, temporally well-constrained and high-resolution temperature proxy data is available in the form of bivalve shells. However, the number of well-accepted and robust temperature proxies contained in shells is limited to stable oxygen isotopes and carbonate clumped isotopes. Many studies have therefore investigated the possibility to reconstruct temperature from element/Ca properties, specifically Sr/Ca ratios in case of aragonitic shells. As demonstrated here, in agreement with thermodynamic expectations and the lattice strain model, shell Sr/Ca of laboratory-grown Arctica islandica specimens is strongly positively coupled to water temperature. If ultrastructure-related bias is mathematically eliminated, up to 75% of the variability in shell Sr/Ca data can be explained by water temperature. However, in field-grown specimens, this relationship is superimposed by other environmental variables that can hardly be quantified and mathematically eliminated. The explained variability of Sr/Ca is reduced to merely 26% and the prediction uncertainty too large for reliable temperature estimates. Most likely, the equable, less biased conditions in the laboratory resulted in the production of a more uniform shell ultrastructure (with larger and more elongated biomineral units) which in turn was associated with less variable Sr/Ca values and a stronger link to water temperature. Without a detailed understanding and quantification of the factors controlling ultrastructural variations in field-grown bivalves, it remains impossible to employ shell Sr/Ca of wild A. islandica specimens for precise temperature estimates, merely a qualitative temperature reconstruction seems feasible. Article in Journal/Newspaper Arctica islandica Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz) |
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Gutenberg Open Science (Open-Science-Repository of the Johannes Gutenberg-University Mainz) |
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ftunivmainzpubl |
language |
English |
topic |
ddc:540 ddc:550 ddc:560 ddc:570 ddc:590 |
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ddc:540 ddc:550 ddc:560 ddc:570 ddc:590 Brosset, Cornélia Höche, Nils Witbaard, Rob Nishida, Kozue Shirai, Kotaro Mertz-Kraus, Regina Schöne, Bernd R. Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
topic_facet |
ddc:540 ddc:550 ddc:560 ddc:570 ddc:590 |
description |
Seawater temperature is an essential quantity for paleoclimatological and paleoecological studies. A potential archive that can provide century-long, temporally well-constrained and high-resolution temperature proxy data is available in the form of bivalve shells. However, the number of well-accepted and robust temperature proxies contained in shells is limited to stable oxygen isotopes and carbonate clumped isotopes. Many studies have therefore investigated the possibility to reconstruct temperature from element/Ca properties, specifically Sr/Ca ratios in case of aragonitic shells. As demonstrated here, in agreement with thermodynamic expectations and the lattice strain model, shell Sr/Ca of laboratory-grown Arctica islandica specimens is strongly positively coupled to water temperature. If ultrastructure-related bias is mathematically eliminated, up to 75% of the variability in shell Sr/Ca data can be explained by water temperature. However, in field-grown specimens, this relationship is superimposed by other environmental variables that can hardly be quantified and mathematically eliminated. The explained variability of Sr/Ca is reduced to merely 26% and the prediction uncertainty too large for reliable temperature estimates. Most likely, the equable, less biased conditions in the laboratory resulted in the production of a more uniform shell ultrastructure (with larger and more elongated biomineral units) which in turn was associated with less variable Sr/Ca values and a stronger link to water temperature. Without a detailed understanding and quantification of the factors controlling ultrastructural variations in field-grown bivalves, it remains impossible to employ shell Sr/Ca of wild A. islandica specimens for precise temperature estimates, merely a qualitative temperature reconstruction seems feasible. |
format |
Article in Journal/Newspaper |
author |
Brosset, Cornélia Höche, Nils Witbaard, Rob Nishida, Kozue Shirai, Kotaro Mertz-Kraus, Regina Schöne, Bernd R. |
author_facet |
Brosset, Cornélia Höche, Nils Witbaard, Rob Nishida, Kozue Shirai, Kotaro Mertz-Kraus, Regina Schöne, Bernd R. |
author_sort |
Brosset, Cornélia |
title |
Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
title_short |
Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
title_full |
Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
title_fullStr |
Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
title_full_unstemmed |
Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
title_sort |
sr/ca in shells of laboratory-grown bivalves (arctica islandica) serves as a proxy for water temperature : implications for (paleo)environmental research? |
publisher |
Johannes Gutenberg-Universität Mainz |
publishDate |
2023 |
url |
https://openscience.ub.uni-mainz.de/handle/20.500.12030/9666 https://hdl.handle.net/20.500.12030/9666 https://doi.org/10.25358/openscience-9648 |
genre |
Arctica islandica |
genre_facet |
Arctica islandica |
op_source |
Frontiers in Marine Science. 10. -. 2023. -. -. 1279164 |
op_relation |
http://doi.org/10.25358/openscience-9648 https://openscience.ub.uni-mainz.de/handle/20.500.12030/9666 2296-7745 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0/ openAccess |
op_doi |
https://doi.org/20.500.12030/966610.25358/openscience-9648 |
_version_ |
1800747400370847744 |