Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018
Identifying the long-term effects of ocean acidification (OA) and global warming on coral calcification has proven elusive yet has major implications for the continuing viability of coral reefs in the face of climate change. Here we address this question using seasonally and annually resolved boron...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.906242 2023-05-15T17:50:52+02:00 Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 D'Olivo, Juan Pablo Ellwood, George DeCarlo, Thomas M McCulloch, Malcolm T LATITUDE: -14.689440 * LONGITUDE: 145.438890 * DATE/TIME START: 2013-12-19T00:00:00 * DATE/TIME END: 2013-12-19T00:00:00 2019-09-23 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.906242 https://doi.org/10.1594/PANGAEA.906242 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.906242 https://doi.org/10.1594/PANGAEA.906242 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: D'Olivo, Juan Pablo; Ellwood, George; DeCarlo, Thomas M; McCulloch, Malcolm T (2019): Deconvolving the long-term impacts of ocean acidification and warming on coral biomineralisation. Earth and Planetary Science Letters, 526, 115785, https://doi.org/10.1016/j.epsl.2019.115785 boron isotopes calcification Coral Geochemistry Ocean acidification Porites Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.906242 https://doi.org/10.1016/j.epsl.2019.115785 2023-01-20T07:34:25Z Identifying the long-term effects of ocean acidification (OA) and global warming on coral calcification has proven elusive yet has major implications for the continuing viability of coral reefs in the face of climate change. Here we address this question using seasonally and annually resolved boron proxies (11B/10B and B/Ca) of calcifying fluid (cf) pHcf and carbonate ion concentrations ([CO]cf) preserved in a long-lived Porites coral from the Great Barrier Reef (GBR). From 1939 to 2013 we find that the coral pHcf closely followed the decline in seawater pH of ∼0.1 units, but at a reduced rate of ∼60%, indicative of biological buffering. Of the decline in pHcf ∼82% is attributed to OA and ∼17% to the ∼0.5 °C long-term warming observed over this period. This long-term warming induced change in pHcf is consistent with the much larger seasonally modulated changes in pHcf where ∼4 to 6 °C seasonal changes in temperatures are accompanied by relatively large antithetic ∼0.1 changes in pHcf. Furthermore, we find that although the supply of dissolved inorganic carbon (DIC) of the coral cf has remained at constant elevated levels of ∼1.5 × seawater, there has been a significant long-term decline (4 to 11%) in the [CO]cf, due primarily to the OA-induced change in pHcf. This decline in [CO]cf, a critical parameter controlling calcification, is thus likely responsible for the ∼15% decline in coral calcification observed since 1939 and across the GBR generally. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Lizard Island ENVELOPE(-64.456,-64.456,-65.688,-65.688) ENVELOPE(145.438890,145.438890,-14.689440,-14.689440) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
boron isotopes calcification Coral Geochemistry Ocean acidification Porites |
spellingShingle |
boron isotopes calcification Coral Geochemistry Ocean acidification Porites D'Olivo, Juan Pablo Ellwood, George DeCarlo, Thomas M McCulloch, Malcolm T Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
topic_facet |
boron isotopes calcification Coral Geochemistry Ocean acidification Porites |
description |
Identifying the long-term effects of ocean acidification (OA) and global warming on coral calcification has proven elusive yet has major implications for the continuing viability of coral reefs in the face of climate change. Here we address this question using seasonally and annually resolved boron proxies (11B/10B and B/Ca) of calcifying fluid (cf) pHcf and carbonate ion concentrations ([CO]cf) preserved in a long-lived Porites coral from the Great Barrier Reef (GBR). From 1939 to 2013 we find that the coral pHcf closely followed the decline in seawater pH of ∼0.1 units, but at a reduced rate of ∼60%, indicative of biological buffering. Of the decline in pHcf ∼82% is attributed to OA and ∼17% to the ∼0.5 °C long-term warming observed over this period. This long-term warming induced change in pHcf is consistent with the much larger seasonally modulated changes in pHcf where ∼4 to 6 °C seasonal changes in temperatures are accompanied by relatively large antithetic ∼0.1 changes in pHcf. Furthermore, we find that although the supply of dissolved inorganic carbon (DIC) of the coral cf has remained at constant elevated levels of ∼1.5 × seawater, there has been a significant long-term decline (4 to 11%) in the [CO]cf, due primarily to the OA-induced change in pHcf. This decline in [CO]cf, a critical parameter controlling calcification, is thus likely responsible for the ∼15% decline in coral calcification observed since 1939 and across the GBR generally. |
format |
Dataset |
author |
D'Olivo, Juan Pablo Ellwood, George DeCarlo, Thomas M McCulloch, Malcolm T |
author_facet |
D'Olivo, Juan Pablo Ellwood, George DeCarlo, Thomas M McCulloch, Malcolm T |
author_sort |
D'Olivo, Juan Pablo |
title |
Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
title_short |
Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
title_full |
Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
title_fullStr |
Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
title_full_unstemmed |
Monthly and annually proxy and growth parameter from a core of Porites australiensis from Lizard Island between 1938 - 2018 |
title_sort |
monthly and annually proxy and growth parameter from a core of porites australiensis from lizard island between 1938 - 2018 |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.906242 https://doi.org/10.1594/PANGAEA.906242 |
op_coverage |
LATITUDE: -14.689440 * LONGITUDE: 145.438890 * DATE/TIME START: 2013-12-19T00:00:00 * DATE/TIME END: 2013-12-19T00:00:00 |
long_lat |
ENVELOPE(-64.456,-64.456,-65.688,-65.688) ENVELOPE(145.438890,145.438890,-14.689440,-14.689440) |
geographic |
Lizard Island |
geographic_facet |
Lizard Island |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: D'Olivo, Juan Pablo; Ellwood, George; DeCarlo, Thomas M; McCulloch, Malcolm T (2019): Deconvolving the long-term impacts of ocean acidification and warming on coral biomineralisation. Earth and Planetary Science Letters, 526, 115785, https://doi.org/10.1016/j.epsl.2019.115785 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.906242 https://doi.org/10.1594/PANGAEA.906242 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.906242 https://doi.org/10.1016/j.epsl.2019.115785 |
_version_ |
1766157780966703104 |