Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming
International audience Red calcareous coralline algae are thought to be among the organisms most vulnerable to ocean acidifi-cation due to the high solubility of their magnesium cal-cite skeleton. Although skeletal mineralogy is proposed to change as CO 2 and temperature continue to rise, there is c...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2016
|
Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878/document https://hal.sorbonne-universite.fr/hal-01408878/file/bg-13-5937-2016.pdf https://doi.org/10.5194/bg-13-5937-2016 |
id |
ftsciencespohal:oai:HAL:hal-01408878v1 |
---|---|
record_format |
openpolar |
spelling |
ftsciencespohal:oai:HAL:hal-01408878v1 2024-09-09T20:01:09+00:00 Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming Nash, Merinda C. Martin, Sophie Gattuso, Jean-Pierre University of Canberra Smithsonian Institution Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Sciences Po (Sciences Po) 2016-11-01 https://hal.sorbonne-universite.fr/hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878/document https://hal.sorbonne-universite.fr/hal-01408878/file/bg-13-5937-2016.pdf https://doi.org/10.5194/bg-13-5937-2016 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-13-5937-2016 hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878/document https://hal.sorbonne-universite.fr/hal-01408878/file/bg-13-5937-2016.pdf doi:10.5194/bg-13-5937-2016 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.sorbonne-universite.fr/hal-01408878 Biogeosciences, 2016, 13 (21), pp.5937 - 5945. ⟨10.5194/bg-13-5937-2016⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2016 ftsciencespohal https://doi.org/10.5194/bg-13-5937-2016 2024-06-20T23:31:29Z International audience Red calcareous coralline algae are thought to be among the organisms most vulnerable to ocean acidifi-cation due to the high solubility of their magnesium cal-cite skeleton. Although skeletal mineralogy is proposed to change as CO 2 and temperature continue to rise, there is currently very little information available on the response of coralline algal carbonate mineralogy to near-future changes in pCO 2 and temperature. Here we present results from a 1-year controlled laboratory experiment to test mineralogi-cal responses to pCO 2 and temperature in the Mediterranean crustose coralline alga (CCA) Lithophyllum cabiochae. Our results show that Mg incorporation is mainly constrained by temperature (+1 mol % MgCO 3 for an increase of 3 • C), and there was no response to pCO 2. This suggests that L. cabiochae thalli have the ability to buffer their calcifying medium against ocean acidification, thereby enabling them to continue to deposit magnesium calcite with a significant mol % MgCO 3 under elevated pCO 2. Analyses of CCA dissolution chips showed a decrease in Mg content after 1 year for all treatments, but this was affected neither by pCO 2 nor by temperature. Our findings suggest that biological processes exert a strong control on calcification on magnesium calcite and that CCA may be more resilient under rising CO 2 than previously thought. However, previously demonstrated increased skeletal dissolution with ocean acidification will still have major consequences for the stability and maintenance of Mediterranean coralligenous habitats. Article in Journal/Newspaper Ocean acidification SPIRE (Sciences Po Institutional Repository) Biogeosciences 13 21 5937 5945 |
institution |
Open Polar |
collection |
SPIRE (Sciences Po Institutional Repository) |
op_collection_id |
ftsciencespohal |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Nash, Merinda C. Martin, Sophie Gattuso, Jean-Pierre Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Red calcareous coralline algae are thought to be among the organisms most vulnerable to ocean acidifi-cation due to the high solubility of their magnesium cal-cite skeleton. Although skeletal mineralogy is proposed to change as CO 2 and temperature continue to rise, there is currently very little information available on the response of coralline algal carbonate mineralogy to near-future changes in pCO 2 and temperature. Here we present results from a 1-year controlled laboratory experiment to test mineralogi-cal responses to pCO 2 and temperature in the Mediterranean crustose coralline alga (CCA) Lithophyllum cabiochae. Our results show that Mg incorporation is mainly constrained by temperature (+1 mol % MgCO 3 for an increase of 3 • C), and there was no response to pCO 2. This suggests that L. cabiochae thalli have the ability to buffer their calcifying medium against ocean acidification, thereby enabling them to continue to deposit magnesium calcite with a significant mol % MgCO 3 under elevated pCO 2. Analyses of CCA dissolution chips showed a decrease in Mg content after 1 year for all treatments, but this was affected neither by pCO 2 nor by temperature. Our findings suggest that biological processes exert a strong control on calcification on magnesium calcite and that CCA may be more resilient under rising CO 2 than previously thought. However, previously demonstrated increased skeletal dissolution with ocean acidification will still have major consequences for the stability and maintenance of Mediterranean coralligenous habitats. |
author2 |
University of Canberra Smithsonian Institution Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Sciences Po (Sciences Po) |
format |
Article in Journal/Newspaper |
author |
Nash, Merinda C. Martin, Sophie Gattuso, Jean-Pierre |
author_facet |
Nash, Merinda C. Martin, Sophie Gattuso, Jean-Pierre |
author_sort |
Nash, Merinda C. |
title |
Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
title_short |
Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
title_full |
Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
title_fullStr |
Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
title_full_unstemmed |
Mineralogical response of the Mediterranean crustose coralline alga Lithophyllum cabiochae to near-future ocean acidification and warming |
title_sort |
mineralogical response of the mediterranean crustose coralline alga lithophyllum cabiochae to near-future ocean acidification and warming |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.sorbonne-universite.fr/hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878/document https://hal.sorbonne-universite.fr/hal-01408878/file/bg-13-5937-2016.pdf https://doi.org/10.5194/bg-13-5937-2016 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.sorbonne-universite.fr/hal-01408878 Biogeosciences, 2016, 13 (21), pp.5937 - 5945. ⟨10.5194/bg-13-5937-2016⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-13-5937-2016 hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878 https://hal.sorbonne-universite.fr/hal-01408878/document https://hal.sorbonne-universite.fr/hal-01408878/file/bg-13-5937-2016.pdf doi:10.5194/bg-13-5937-2016 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-13-5937-2016 |
container_title |
Biogeosciences |
container_volume |
13 |
container_issue |
21 |
container_start_page |
5937 |
op_container_end_page |
5945 |
_version_ |
1809932938196811776 |