High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica)
An increasing area of shallow-marine benthic habitats, specifically in the Baltic Sea, is affected by seasonal oxygen depletion. To place the current spread of oxygen deficiency into context and quantify the contribution of anthropogenic ecosystem perturbation to this development, high-resolution ar...
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Johannes Gutenberg-Universität Mainz
2022
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ftunivmainzpubl:oai:openscience.ub.uni-mainz.de:20.500.12030/8200 2023-05-15T15:22:32+02:00 High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) Schöne, Bernd R. Huang, Xizhi Jantschke, Anne Mertz-Kraus, Regina Zettler, Michael L. 2022 https://openscience.ub.uni-mainz.de/handle/20.500.12030/8200 https://hdl.handle.net/20.500.12030/8200 https://doi.org/10.25358/openscience-8185 eng eng Johannes Gutenberg-Universität Mainz http://doi.org/10.25358/openscience-8185 https://openscience.ub.uni-mainz.de/handle/20.500.12030/8200 2296-7745 CC BY https://creativecommons.org/licenses/by/4.0/ openAccess CC-BY Frontiers in Marine Science. 9. -. 2022. -. -. 820731 ddc:550 Zeitschriftenaufsatz publishedVersion Text doc-type:article 2022 ftunivmainzpubl https://doi.org/20.500.12030/8200 https://doi.org/10.25358/openscience-8185 2022-11-06T23:37:23Z An increasing area of shallow-marine benthic habitats, specifically in the Baltic Sea, is affected by seasonal oxygen depletion. To place the current spread of oxygen deficiency into context and quantify the contribution of anthropogenic ecosystem perturbation to this development, high-resolution archives for the pre-instrumental era are needed. As recently demonstrated, shells of the bivalve mollusk, Arctica islandica fulfil this task with molar Mn/Cashell ratios as proxies for dissolved oxygen (DO) levels in the water column. Since the ocean quahog is inhomogeneously distributed in the Baltic Sea and may not be present in museum collections or found throughout sedimentary sequences, the present study evaluated whether two other common bivalves, Astarte elliptica and Astarte borealis can be used interchangeably or alternatively as proxy DO recorders. Once mathematically resampled and corrected for shell growth rate-related kinetic effects and (some) vital effects, Mn/Cashell data of all three species (age ten onward in A. islandica) were statistically significantly (p < 0.0001) linearly and inversely correlated to DO concentration in the free water column above seafloor (r = –0.66 to –0.75, corresponding to 43 to 56% explained variability). A. elliptica may provide slightly more precise DO data (1σ error of ±1.5 mL/L) than A. islandica or A. borealis ( ± 1.6 mL/L), but has a shorter lifespan. Both Astarte species show a stronger correlation with DO than A. islandica, because their biomineralization seems to be less severely hampered by oxygen and salinity stress. In turn, A. islandica grows faster resulting in less time-averaged data. During youth, the ocean quahog typically incorporates a disproportionately large amount of manganese into its shell, possibly because food intake occurs directly at the sediment-water interface where Mn-rich porewater diffuses out of the sediment. With increasing age, however, A. islandica seems to generate a gradually stronger inhaling water current and takes in a larger ... Article in Journal/Newspaper Arctica islandica Ocean quahog 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:550 |
spellingShingle |
ddc:550 Schöne, Bernd R. Huang, Xizhi Jantschke, Anne Mertz-Kraus, Regina Zettler, Michael L. High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
topic_facet |
ddc:550 |
description |
An increasing area of shallow-marine benthic habitats, specifically in the Baltic Sea, is affected by seasonal oxygen depletion. To place the current spread of oxygen deficiency into context and quantify the contribution of anthropogenic ecosystem perturbation to this development, high-resolution archives for the pre-instrumental era are needed. As recently demonstrated, shells of the bivalve mollusk, Arctica islandica fulfil this task with molar Mn/Cashell ratios as proxies for dissolved oxygen (DO) levels in the water column. Since the ocean quahog is inhomogeneously distributed in the Baltic Sea and may not be present in museum collections or found throughout sedimentary sequences, the present study evaluated whether two other common bivalves, Astarte elliptica and Astarte borealis can be used interchangeably or alternatively as proxy DO recorders. Once mathematically resampled and corrected for shell growth rate-related kinetic effects and (some) vital effects, Mn/Cashell data of all three species (age ten onward in A. islandica) were statistically significantly (p < 0.0001) linearly and inversely correlated to DO concentration in the free water column above seafloor (r = –0.66 to –0.75, corresponding to 43 to 56% explained variability). A. elliptica may provide slightly more precise DO data (1σ error of ±1.5 mL/L) than A. islandica or A. borealis ( ± 1.6 mL/L), but has a shorter lifespan. Both Astarte species show a stronger correlation with DO than A. islandica, because their biomineralization seems to be less severely hampered by oxygen and salinity stress. In turn, A. islandica grows faster resulting in less time-averaged data. During youth, the ocean quahog typically incorporates a disproportionately large amount of manganese into its shell, possibly because food intake occurs directly at the sediment-water interface where Mn-rich porewater diffuses out of the sediment. With increasing age, however, A. islandica seems to generate a gradually stronger inhaling water current and takes in a larger ... |
format |
Article in Journal/Newspaper |
author |
Schöne, Bernd R. Huang, Xizhi Jantschke, Anne Mertz-Kraus, Regina Zettler, Michael L. |
author_facet |
Schöne, Bernd R. Huang, Xizhi Jantschke, Anne Mertz-Kraus, Regina Zettler, Michael L. |
author_sort |
Schöne, Bernd R. |
title |
High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
title_short |
High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
title_full |
High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
title_fullStr |
High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
title_full_unstemmed |
High-Resolution reconstruction of dissolved oxygen levels in the Baltic Sea with bivalves : a multi-species comparison (Arctica islandica, Astarte borealis, Astarte elliptica) |
title_sort |
high-resolution reconstruction of dissolved oxygen levels in the baltic sea with bivalves : a multi-species comparison (arctica islandica, astarte borealis, astarte elliptica) |
publisher |
Johannes Gutenberg-Universität Mainz |
publishDate |
2022 |
url |
https://openscience.ub.uni-mainz.de/handle/20.500.12030/8200 https://hdl.handle.net/20.500.12030/8200 https://doi.org/10.25358/openscience-8185 |
genre |
Arctica islandica Ocean quahog |
genre_facet |
Arctica islandica Ocean quahog |
op_source |
Frontiers in Marine Science. 9. -. 2022. -. -. 820731 |
op_relation |
http://doi.org/10.25358/openscience-8185 https://openscience.ub.uni-mainz.de/handle/20.500.12030/8200 2296-7745 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0/ openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.12030/8200 https://doi.org/10.25358/openscience-8185 |
_version_ |
1766353181674045440 |