Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification
To investigate the effect of diel variation in pCO2 on coral calcification, branches of Acropora hyacinthus were collected in 2 habitats (upstream and downstream in a unidirectional flow) in a shallow back reef in Moorea, French Polynesia, where different diel amplitudes of pCO2 oscillation were exp...
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Language: | English |
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Marine Ecology - Progress Series
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ftcalifstateuniv:oai:dspace.calstate.edu:10211.3/198520 2023-05-15T17:50:44+02:00 Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification Comeau, Steeve Edmunds, Peter J. Spindel, Nathan B. Carpenter, Robert C. 2014 http://hdl.handle.net/10211.3/198520 en eng Marine Ecology - Progress Series doi.org/10.3354/meps10690 Marine Ecology Progress Series 501, 99-111. (2014) 0171-8630 http://hdl.handle.net/10211.3/198520 orcid.org/0000-0003-4232-1868 copyright Inter-Research 2014 Corals Article 2014 ftcalifstateuniv https://doi.org/10.3354/meps10690 2022-04-13T11:38:26Z To investigate the effect of diel variation in pCO2 on coral calcification, branches of Acropora hyacinthus were collected in 2 habitats (upstream and downstream in a unidirectional flow) in a shallow back reef in Moorea, French Polynesia, where different diel amplitudes of pCO2 oscillation were expected. Corals were maintained for 6 wk under different pCO2 regimes (constant versus oscillatory), each delivered in 3 configurations: constant conditions of 400 ??atm, 700 ??atm, and 1000 ??atm pCO2, or oscillatory conditions varying daily from 280 to 550 ??atm, 550 to 1000 ??atm, or 400 to 2000 ??atm, with minima and maxima during the day and night, respectively. Calcification rates in all treatments tended to increase over time, and the interaction between Time and pCO2 regime (i.e. constant versus oscillating) was significant (or close to significant) for upstream corals due to higher calcification in oscillatory pCO2. A significant pCO2 regime effect was detected in the highest pCO2 for downstream corals, with higher calcification in the 400 to 2000 ??atm oscillatory pCO2 treatment compared to the 1000 ??atm constant pCO2 treatment. After 6 wk, calcification of A. hyacinthus was affected significantly by habitat, the pCO2 level, and the pCO2 regime. Calcification generally was reduced by high pCO2 and was ???21% greater in 400 to 2000 ??atm oscillatory pCO2 versus 1000 ??atm constant pCO2 treatment. Increased calcification in the 400 to 2000 ??atm oscillatory pCO2 treatment suggests that natural diel oscillations in pCO2 could play a role by reducing the locally negative effects of rising pCO2 associated with ocean acidification on coral calcification. Article in Journal/Newspaper Ocean acidification California State University (CSU): DSpace Marine Ecology Progress Series 501 99 111 |
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Open Polar |
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California State University (CSU): DSpace |
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ftcalifstateuniv |
language |
English |
topic |
Corals |
spellingShingle |
Corals Comeau, Steeve Edmunds, Peter J. Spindel, Nathan B. Carpenter, Robert C. Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
topic_facet |
Corals |
description |
To investigate the effect of diel variation in pCO2 on coral calcification, branches of Acropora hyacinthus were collected in 2 habitats (upstream and downstream in a unidirectional flow) in a shallow back reef in Moorea, French Polynesia, where different diel amplitudes of pCO2 oscillation were expected. Corals were maintained for 6 wk under different pCO2 regimes (constant versus oscillatory), each delivered in 3 configurations: constant conditions of 400 ??atm, 700 ??atm, and 1000 ??atm pCO2, or oscillatory conditions varying daily from 280 to 550 ??atm, 550 to 1000 ??atm, or 400 to 2000 ??atm, with minima and maxima during the day and night, respectively. Calcification rates in all treatments tended to increase over time, and the interaction between Time and pCO2 regime (i.e. constant versus oscillating) was significant (or close to significant) for upstream corals due to higher calcification in oscillatory pCO2. A significant pCO2 regime effect was detected in the highest pCO2 for downstream corals, with higher calcification in the 400 to 2000 ??atm oscillatory pCO2 treatment compared to the 1000 ??atm constant pCO2 treatment. After 6 wk, calcification of A. hyacinthus was affected significantly by habitat, the pCO2 level, and the pCO2 regime. Calcification generally was reduced by high pCO2 and was ???21% greater in 400 to 2000 ??atm oscillatory pCO2 versus 1000 ??atm constant pCO2 treatment. Increased calcification in the 400 to 2000 ??atm oscillatory pCO2 treatment suggests that natural diel oscillations in pCO2 could play a role by reducing the locally negative effects of rising pCO2 associated with ocean acidification on coral calcification. |
format |
Article in Journal/Newspaper |
author |
Comeau, Steeve Edmunds, Peter J. Spindel, Nathan B. Carpenter, Robert C. |
author_facet |
Comeau, Steeve Edmunds, Peter J. Spindel, Nathan B. Carpenter, Robert C. |
author_sort |
Comeau, Steeve |
title |
Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
title_short |
Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
title_full |
Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
title_fullStr |
Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
title_full_unstemmed |
Diel pCO2 oscillations modulate the response of the coral Acropora hyacinthus to ocean acidification |
title_sort |
diel pco2 oscillations modulate the response of the coral acropora hyacinthus to ocean acidification |
publisher |
Marine Ecology - Progress Series |
publishDate |
2014 |
url |
http://hdl.handle.net/10211.3/198520 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi.org/10.3354/meps10690 Marine Ecology Progress Series 501, 99-111. (2014) 0171-8630 http://hdl.handle.net/10211.3/198520 orcid.org/0000-0003-4232-1868 |
op_rights |
copyright Inter-Research 2014 |
op_doi |
https://doi.org/10.3354/meps10690 |
container_title |
Marine Ecology Progress Series |
container_volume |
501 |
container_start_page |
99 |
op_container_end_page |
111 |
_version_ |
1766157616599269376 |