Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations?
The rhodolith-forming coralline red algal species Lithothamnion glaciale is the key ecosystem engineer of rhodolith beds on the coast of Svalbard. Because it significantly increases local biodiversity in this high-Arctic environment, we investigate the potential impact of changing environmental para...
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Online Access: | https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/22917 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-229171 https://doi.org/10.1007/s00300-020-02767-3 https://opus4.kobv.de/opus4-fau/files/22917/s00300-020-02767-3.pdf |
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ftuniverlangen:oai:ub.uni-erlangen.de-opus:22917 2023-06-11T04:07:56+02:00 Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? Teichert, Sebastian Voigt, Nora Wisshak, Max 2020-12-01 application/pdf https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/22917 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-229171 https://doi.org/10.1007/s00300-020-02767-3 https://opus4.kobv.de/opus4-fau/files/22917/s00300-020-02767-3.pdf eng eng https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/22917 urn:nbn:de:bvb:29-opus4-229171 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-229171 https://doi.org/10.1007/s00300-020-02767-3 https://opus4.kobv.de/opus4-fau/files/22917/s00300-020-02767-3.pdf https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess ddc:550 article doc-type:article 2020 ftuniverlangen https://doi.org/10.1007/s00300-020-02767-3 2023-05-28T22:42:53Z The rhodolith-forming coralline red algal species Lithothamnion glaciale is the key ecosystem engineer of rhodolith beds on the coast of Svalbard. Because it significantly increases local biodiversity in this high-Arctic environment, we investigate the potential impact of changing environmental parameters on its calcite skeleton. Using energy-dispersive X-ray spectroscopy and environmental data from the Norwegian government’s environmental monitoring, we show that the magnesium concentration within an analysed algal calcite skeleton decreases linearly and significantly over a 40-year time span (R2 = 0.267, pperm < 0.001). Mg/Ca ratios show the most significant correlation with atmospheric CO2 concentrations (R2 = 0.614, p < 0.001), and lower correlations to sea ice cover and seawater temperature. This raises the question of whether the Mg/Ca in the rhodolith skeleton is reflecting an increase in aqueous pCO2 that drives ongoing ocean acidification. Since such a change in geochemistry may alter the stability of the calcite skeleton, our results could imply an impact on the future role of the rhodoliths as ecosystem engineers and consequently on Arctic biodiversity. Article in Journal/Newspaper Arctic biodiversity Arctic Ocean acidification Sea ice Svalbard OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg Arctic Svalbard Polar Biology 43 12 2059 2069 |
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Open Polar |
collection |
OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg |
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ftuniverlangen |
language |
English |
topic |
ddc:550 |
spellingShingle |
ddc:550 Teichert, Sebastian Voigt, Nora Wisshak, Max Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
topic_facet |
ddc:550 |
description |
The rhodolith-forming coralline red algal species Lithothamnion glaciale is the key ecosystem engineer of rhodolith beds on the coast of Svalbard. Because it significantly increases local biodiversity in this high-Arctic environment, we investigate the potential impact of changing environmental parameters on its calcite skeleton. Using energy-dispersive X-ray spectroscopy and environmental data from the Norwegian government’s environmental monitoring, we show that the magnesium concentration within an analysed algal calcite skeleton decreases linearly and significantly over a 40-year time span (R2 = 0.267, pperm < 0.001). Mg/Ca ratios show the most significant correlation with atmospheric CO2 concentrations (R2 = 0.614, p < 0.001), and lower correlations to sea ice cover and seawater temperature. This raises the question of whether the Mg/Ca in the rhodolith skeleton is reflecting an increase in aqueous pCO2 that drives ongoing ocean acidification. Since such a change in geochemistry may alter the stability of the calcite skeleton, our results could imply an impact on the future role of the rhodoliths as ecosystem engineers and consequently on Arctic biodiversity. |
format |
Article in Journal/Newspaper |
author |
Teichert, Sebastian Voigt, Nora Wisshak, Max |
author_facet |
Teichert, Sebastian Voigt, Nora Wisshak, Max |
author_sort |
Teichert, Sebastian |
title |
Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
title_short |
Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
title_full |
Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
title_fullStr |
Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
title_full_unstemmed |
Do skeletal Mg/Ca ratios of Arctic rhodoliths reflect atmospheric CO2 concentrations? |
title_sort |
do skeletal mg/ca ratios of arctic rhodoliths reflect atmospheric co2 concentrations? |
publishDate |
2020 |
url |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/22917 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-229171 https://doi.org/10.1007/s00300-020-02767-3 https://opus4.kobv.de/opus4-fau/files/22917/s00300-020-02767-3.pdf |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic biodiversity Arctic Ocean acidification Sea ice Svalbard |
genre_facet |
Arctic biodiversity Arctic Ocean acidification Sea ice Svalbard |
op_relation |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/22917 urn:nbn:de:bvb:29-opus4-229171 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-229171 https://doi.org/10.1007/s00300-020-02767-3 https://opus4.kobv.de/opus4-fau/files/22917/s00300-020-02767-3.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-020-02767-3 |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
12 |
container_start_page |
2059 |
op_container_end_page |
2069 |
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1768381045696102400 |