Ocean acidification accelerates dissolution of experimental coral reef communities
Ocean acidification (OA) poses a severe threat to tropical coral reefs, yet much of what is know about these effects comes from individual corals and algae incubated in isolation under high pCO2. Studies of similar effects on coral reef communities are scarce. To investigate the response of coral re...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00017774 2023-05-15T17:50:23+02:00 Ocean acidification accelerates dissolution of experimental coral reef communities Comeau, S. Carpenter, R. C. Lantz, C. A. Edmunds, P. J. 2015-01 electronic https://doi.org/10.5194/bg-12-365-2015 https://noa.gwlb.de/receive/cop_mods_00017774 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017729/bg-12-365-2015.pdf https://bg.copernicus.org/articles/12/365/2015/bg-12-365-2015.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-12-365-2015 https://noa.gwlb.de/receive/cop_mods_00017774 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017729/bg-12-365-2015.pdf https://bg.copernicus.org/articles/12/365/2015/bg-12-365-2015.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2015 ftnonlinearchiv https://doi.org/10.5194/bg-12-365-2015 2022-02-08T22:53:32Z Ocean acidification (OA) poses a severe threat to tropical coral reefs, yet much of what is know about these effects comes from individual corals and algae incubated in isolation under high pCO2. Studies of similar effects on coral reef communities are scarce. To investigate the response of coral reef communities to OA, we used large outdoor flumes in which communities composed of calcified algae, corals, and sediment were combined to match the percentage cover of benthic communities in the shallow back reef of Moorea, French Polynesia. Reef communities in the flumes were exposed to ambient (~ 400 μatm) and high pCO2 (~ 1300 μatm) for 8 weeks, and calcification rates measured for the constructed communities including the sediments. Community calcification was reduced by 59% under high pCO2, with sediment dissolution explaining ~ 50% of this decrease; net calcification of corals and calcified algae remained positive but was reduced by 29% under elevated pCO2. These results show that, despite the capacity of coral reef calcifiers to maintain positive net accretion of calcium carbonate under OA conditions, reef communities might transition to net dissolution as pCO2 increases, particularly at night, due to enhanced sediment dissolution. Article in Journal/Newspaper Ocean acidification Niedersächsisches Online-Archiv NOA Biogeosciences 12 2 365 372 |
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article Verlagsveröffentlichung Comeau, S. Carpenter, R. C. Lantz, C. A. Edmunds, P. J. Ocean acidification accelerates dissolution of experimental coral reef communities |
topic_facet |
article Verlagsveröffentlichung |
description |
Ocean acidification (OA) poses a severe threat to tropical coral reefs, yet much of what is know about these effects comes from individual corals and algae incubated in isolation under high pCO2. Studies of similar effects on coral reef communities are scarce. To investigate the response of coral reef communities to OA, we used large outdoor flumes in which communities composed of calcified algae, corals, and sediment were combined to match the percentage cover of benthic communities in the shallow back reef of Moorea, French Polynesia. Reef communities in the flumes were exposed to ambient (~ 400 μatm) and high pCO2 (~ 1300 μatm) for 8 weeks, and calcification rates measured for the constructed communities including the sediments. Community calcification was reduced by 59% under high pCO2, with sediment dissolution explaining ~ 50% of this decrease; net calcification of corals and calcified algae remained positive but was reduced by 29% under elevated pCO2. These results show that, despite the capacity of coral reef calcifiers to maintain positive net accretion of calcium carbonate under OA conditions, reef communities might transition to net dissolution as pCO2 increases, particularly at night, due to enhanced sediment dissolution. |
format |
Article in Journal/Newspaper |
author |
Comeau, S. Carpenter, R. C. Lantz, C. A. Edmunds, P. J. |
author_facet |
Comeau, S. Carpenter, R. C. Lantz, C. A. Edmunds, P. J. |
author_sort |
Comeau, S. |
title |
Ocean acidification accelerates dissolution of experimental coral reef communities |
title_short |
Ocean acidification accelerates dissolution of experimental coral reef communities |
title_full |
Ocean acidification accelerates dissolution of experimental coral reef communities |
title_fullStr |
Ocean acidification accelerates dissolution of experimental coral reef communities |
title_full_unstemmed |
Ocean acidification accelerates dissolution of experimental coral reef communities |
title_sort |
ocean acidification accelerates dissolution of experimental coral reef communities |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/bg-12-365-2015 https://noa.gwlb.de/receive/cop_mods_00017774 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017729/bg-12-365-2015.pdf https://bg.copernicus.org/articles/12/365/2015/bg-12-365-2015.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-12-365-2015 https://noa.gwlb.de/receive/cop_mods_00017774 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017729/bg-12-365-2015.pdf https://bg.copernicus.org/articles/12/365/2015/bg-12-365-2015.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-12-365-2015 |
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Biogeosciences |
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2 |
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365 |
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372 |
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1766157115958755328 |