Effect of in situ acidification on the boring microflora of aragonitic substrates
Up to now, the impact of acidification on the boring microflora of calcifying organisms has only been addressed by Tribollet et al. (2009), in a short-term laboratory experiment. The study by Tribollet et al. (2009) is the first to show an accelerated weathering of limestone substrates by boring mic...
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Language: | French |
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HAL CCSD
2012
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Online Access: | https://ird.hal.science/ird-01080744 https://ird.hal.science/ird-01080744/document https://ird.hal.science/ird-01080744/file/M2julieGrange.compressed.pdf |
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openpolar |
institution |
Open Polar |
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Université de Paris: Portail HAL |
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ftunivparis |
language |
French |
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Italia Ischia bioerosion aragonitic substrates boring microflora acidification [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment |
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Italia Ischia bioerosion aragonitic substrates boring microflora acidification [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment Grange, J. S. Effect of in situ acidification on the boring microflora of aragonitic substrates |
topic_facet |
Italia Ischia bioerosion aragonitic substrates boring microflora acidification [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
Up to now, the impact of acidification on the boring microflora of calcifying organisms has only been addressed by Tribollet et al. (2009), in a short-term laboratory experiment. The study by Tribollet et al. (2009) is the first to show an accelerated weathering of limestone substrates by boring microflora when exposed to high partial pressure of carbon dioxide (750 ppm). The present study aims to investigate the impact of acidification on the microflora of two aragonitic substrates in volcanic carbon dioxide vents in Ischia in Italy. Three sites were selected along a gradient of pH and other environmental data (reported by Rodolpho-Metalpa et al. (2011)): a control site (C; pH = 8.02, close to current seawater pH), a S1 site (pH = 7.24) and a S2 site (pH = 7.44). To highlight the impact of ocean acidification on these micro-organimes, their species diversity was determined and several biological parameters were measured. These data were obtained through the realization of thin sections, which were observed under an optical microscope, and selected observations made with scanning electron microscopy. The results of this study are contradictory to the reference study. Indeed, for low pH rate of carbonate dissolution seems slow. To explain the opposition of the two main studies we hypothesize that there is a pH threshold at which bioerosion by boring microflora is slowed. A study on a pH gradient ranging from 8.1 to 7 with increments of 0.1 or 0.2 pH units would help to better understand the influence of ocean acidification on boring microflora L’impact de l’acidification sur les microperforants des organismes calcifiants n’a été abordé pour le moment que par Tribollet et al. (2009) lors d’une expérience réalisée à court terme et en aquarium. Cette étude a montré une accélération de l’altération des substrats calcaires par la microflore perforante lors d’une exposition à une forte pression partielle en dioxyde de carbone (750 ppm). L’étude présentée ici a pour objectif d’étudier l’impact de l’acidification sur ... |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) IRD UPMC |
format |
Report |
author |
Grange, J. S. |
author_facet |
Grange, J. S. |
author_sort |
Grange, J. S. |
title |
Effect of in situ acidification on the boring microflora of aragonitic substrates |
title_short |
Effect of in situ acidification on the boring microflora of aragonitic substrates |
title_full |
Effect of in situ acidification on the boring microflora of aragonitic substrates |
title_fullStr |
Effect of in situ acidification on the boring microflora of aragonitic substrates |
title_full_unstemmed |
Effect of in situ acidification on the boring microflora of aragonitic substrates |
title_sort |
effect of in situ acidification on the boring microflora of aragonitic substrates |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://ird.hal.science/ird-01080744 https://ird.hal.science/ird-01080744/document https://ird.hal.science/ird-01080744/file/M2julieGrange.compressed.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
https://ird.hal.science/ird-01080744 [Travaux universitaires] IRD; UPMC. 2012 |
op_relation |
ird-01080744 https://ird.hal.science/ird-01080744 https://ird.hal.science/ird-01080744/document https://ird.hal.science/ird-01080744/file/M2julieGrange.compressed.pdf IRD: fdi:010063066 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
_version_ |
1799486802687426560 |
spelling |
ftunivparis:oai:HAL:ird-01080744v1 2024-05-19T07:46:35+00:00 Effect of in situ acidification on the boring microflora of aragonitic substrates Effet in situ de l’acidification des océans sur la microflore perforante de substrats aragonitiques Grange, J. S. Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) IRD UPMC 2012-06 https://ird.hal.science/ird-01080744 https://ird.hal.science/ird-01080744/document https://ird.hal.science/ird-01080744/file/M2julieGrange.compressed.pdf fr fre HAL CCSD ird-01080744 https://ird.hal.science/ird-01080744 https://ird.hal.science/ird-01080744/document https://ird.hal.science/ird-01080744/file/M2julieGrange.compressed.pdf IRD: fdi:010063066 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess https://ird.hal.science/ird-01080744 [Travaux universitaires] IRD; UPMC. 2012 Italia Ischia bioerosion aragonitic substrates boring microflora acidification [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/report Reports 2012 ftunivparis 2024-04-23T03:54:21Z Up to now, the impact of acidification on the boring microflora of calcifying organisms has only been addressed by Tribollet et al. (2009), in a short-term laboratory experiment. The study by Tribollet et al. (2009) is the first to show an accelerated weathering of limestone substrates by boring microflora when exposed to high partial pressure of carbon dioxide (750 ppm). The present study aims to investigate the impact of acidification on the microflora of two aragonitic substrates in volcanic carbon dioxide vents in Ischia in Italy. Three sites were selected along a gradient of pH and other environmental data (reported by Rodolpho-Metalpa et al. (2011)): a control site (C; pH = 8.02, close to current seawater pH), a S1 site (pH = 7.24) and a S2 site (pH = 7.44). To highlight the impact of ocean acidification on these micro-organimes, their species diversity was determined and several biological parameters were measured. These data were obtained through the realization of thin sections, which were observed under an optical microscope, and selected observations made with scanning electron microscopy. The results of this study are contradictory to the reference study. Indeed, for low pH rate of carbonate dissolution seems slow. To explain the opposition of the two main studies we hypothesize that there is a pH threshold at which bioerosion by boring microflora is slowed. A study on a pH gradient ranging from 8.1 to 7 with increments of 0.1 or 0.2 pH units would help to better understand the influence of ocean acidification on boring microflora L’impact de l’acidification sur les microperforants des organismes calcifiants n’a été abordé pour le moment que par Tribollet et al. (2009) lors d’une expérience réalisée à court terme et en aquarium. Cette étude a montré une accélération de l’altération des substrats calcaires par la microflore perforante lors d’une exposition à une forte pression partielle en dioxyde de carbone (750 ppm). L’étude présentée ici a pour objectif d’étudier l’impact de l’acidification sur ... Report Ocean acidification Université de Paris: Portail HAL |