Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths
International audience Eight-month-old blocks of the coral Porites lobata colonized by natural Hawaiian euendolithic and epilithic communities were experimentally exposed to two different aqueous pCO2 treatments, 400 ppmv and 750 ppmv, for 3 months. The chlorophyte Ostreobium quekettii dominated com...
Published in: | Global Biogeochemical Cycles |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2009
|
Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00937269 https://doi.org/10.1029/2008GB003286 |
id |
ftccsdartic:oai:HAL:hal-00937269v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:hal-00937269v1 2023-05-15T17:51:29+02:00 Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths Tribollet, Aline Godinot, C. Atkinson, M. Langdon, C. Biosphere 2 Center University of Arizona Lamont-Doherty Earth Observatory (LDEO) Columbia University New York Caractérisation et modélisation des échanges dans des lagons soumis aux influences terrigènes et anthropiques (CAMELIA) Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie )-Institut de Recherche pour le Développement (IRD Guyane ) 2009-09 https://hal.archives-ouvertes.fr/hal-00937269 https://doi.org/10.1029/2008GB003286 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2008GB003286 hal-00937269 https://hal.archives-ouvertes.fr/hal-00937269 BIBCODE: 2009GBioC.23.3008T doi:10.1029/2008GB003286 ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.archives-ouvertes.fr/hal-00937269 Global Biogeochemical Cycles, American Geophysical Union, 2009, 23, pp.3008. ⟨10.1029/2008GB003286⟩ Oceanography: Biological and Chemical: Biogeochemical cycles processes and modeling (0412 0414 0793 1615 4912) Oceanography: General: Coral reef systems (4916) Oceanography: Biological and Chemical: Benthic processes benthos (0408) Global Change: Impacts of global change (1225) carbonate dissolution coral reefs elevated pCO2 microbial euendoliths microalgae ocean acidification [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2009 ftccsdartic https://doi.org/10.1029/2008GB003286 2021-06-26T23:39:37Z International audience Eight-month-old blocks of the coral Porites lobata colonized by natural Hawaiian euendolithic and epilithic communities were experimentally exposed to two different aqueous pCO2 treatments, 400 ppmv and 750 ppmv, for 3 months. The chlorophyte Ostreobium quekettii dominated communities at the start and at the end of the experiment (65-90%). There were no significant differences in the relative abundance of euendolithic species, nor were there any differences in bioeroded area at the surface of blocks (27%) between pCO2 treatments. The depth of penetration of filaments of O. quekettii was, however, significantly higher under 750 ppmv (1.4 mm) than under 400 ppmv (1 mm). Consequently, rates of carbonate dissolution measured under elevated pCO2 were 48% higher than under ambient pCO2 (0.46 kg CaCO3 dissolved m-2 a-1 versus 0.31 kg m-2 a-1). Thus, biogenic dissolution of carbonates by euendoliths in coral reefs may be a dominant mechanism of carbonate dissolution in a more acidic ocean. Article in Journal/Newspaper Ocean acidification Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Global Biogeochemical Cycles 23 3 n/a n/a |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Oceanography: Biological and Chemical: Biogeochemical cycles processes and modeling (0412 0414 0793 1615 4912) Oceanography: General: Coral reef systems (4916) Oceanography: Biological and Chemical: Benthic processes benthos (0408) Global Change: Impacts of global change (1225) carbonate dissolution coral reefs elevated pCO2 microbial euendoliths microalgae ocean acidification [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
Oceanography: Biological and Chemical: Biogeochemical cycles processes and modeling (0412 0414 0793 1615 4912) Oceanography: General: Coral reef systems (4916) Oceanography: Biological and Chemical: Benthic processes benthos (0408) Global Change: Impacts of global change (1225) carbonate dissolution coral reefs elevated pCO2 microbial euendoliths microalgae ocean acidification [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Tribollet, Aline Godinot, C. Atkinson, M. Langdon, C. Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
topic_facet |
Oceanography: Biological and Chemical: Biogeochemical cycles processes and modeling (0412 0414 0793 1615 4912) Oceanography: General: Coral reef systems (4916) Oceanography: Biological and Chemical: Benthic processes benthos (0408) Global Change: Impacts of global change (1225) carbonate dissolution coral reefs elevated pCO2 microbial euendoliths microalgae ocean acidification [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience Eight-month-old blocks of the coral Porites lobata colonized by natural Hawaiian euendolithic and epilithic communities were experimentally exposed to two different aqueous pCO2 treatments, 400 ppmv and 750 ppmv, for 3 months. The chlorophyte Ostreobium quekettii dominated communities at the start and at the end of the experiment (65-90%). There were no significant differences in the relative abundance of euendolithic species, nor were there any differences in bioeroded area at the surface of blocks (27%) between pCO2 treatments. The depth of penetration of filaments of O. quekettii was, however, significantly higher under 750 ppmv (1.4 mm) than under 400 ppmv (1 mm). Consequently, rates of carbonate dissolution measured under elevated pCO2 were 48% higher than under ambient pCO2 (0.46 kg CaCO3 dissolved m-2 a-1 versus 0.31 kg m-2 a-1). Thus, biogenic dissolution of carbonates by euendoliths in coral reefs may be a dominant mechanism of carbonate dissolution in a more acidic ocean. |
author2 |
Biosphere 2 Center University of Arizona Lamont-Doherty Earth Observatory (LDEO) Columbia University New York Caractérisation et modélisation des échanges dans des lagons soumis aux influences terrigènes et anthropiques (CAMELIA) Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie )-Institut de Recherche pour le Développement (IRD Guyane ) |
format |
Article in Journal/Newspaper |
author |
Tribollet, Aline Godinot, C. Atkinson, M. Langdon, C. |
author_facet |
Tribollet, Aline Godinot, C. Atkinson, M. Langdon, C. |
author_sort |
Tribollet, Aline |
title |
Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
title_short |
Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
title_full |
Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
title_fullStr |
Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
title_full_unstemmed |
Effects of elevated pCO2 on dissolution of coral carbonates by microbial euendoliths |
title_sort |
effects of elevated pco2 on dissolution of coral carbonates by microbial euendoliths |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.archives-ouvertes.fr/hal-00937269 https://doi.org/10.1029/2008GB003286 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.archives-ouvertes.fr/hal-00937269 Global Biogeochemical Cycles, American Geophysical Union, 2009, 23, pp.3008. ⟨10.1029/2008GB003286⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2008GB003286 hal-00937269 https://hal.archives-ouvertes.fr/hal-00937269 BIBCODE: 2009GBioC.23.3008T doi:10.1029/2008GB003286 |
op_doi |
https://doi.org/10.1029/2008GB003286 |
container_title |
Global Biogeochemical Cycles |
container_volume |
23 |
container_issue |
3 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766158648120180736 |