pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry
Coral reefs are iconic ecosystems with immense ecological, economic and cultural value, but globally their carbonate-based skeletal construction is threatened by ocean acidification (OA). Identifying coral species that have specialised mechanisms to maintain high rates of calcification in the face o...
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ftarchimer:oai:archimer.ifremer.fr:86184 2023-05-15T17:50:43+02:00 pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry Comeau, Steeve Cornwall, Christopher E. Shlesinger, Tom Hoogenboom, Mia Mana, Ralph Mcculloch, Malcolm T. Rodolfo‐metalpa, Riccardo 2022-04 application/pdf https://archimer.ifremer.fr/doc/00750/86184/92658.pdf https://doi.org/10.1111/gcb.16093 https://archimer.ifremer.fr/doc/00750/86184/ eng eng Wiley https://archimer.ifremer.fr/doc/00750/86184/92658.pdf doi:10.1111/gcb.16093 https://archimer.ifremer.fr/doc/00750/86184/ info:eu-repo/semantics/openAccess restricted use Global Change Biology (1354-1013) (Wiley), 2022-04 , Vol. 28 , N. 8 , P. 2751-2763 abundance calcification calcifying fluid coral coral reefs dissolved inorganic carbon ocean acidification Papua New Guinea text Publication info:eu-repo/semantics/article 2022 ftarchimer https://doi.org/10.1111/gcb.16093 2023-02-07T23:52:15Z Coral reefs are iconic ecosystems with immense ecological, economic and cultural value, but globally their carbonate-based skeletal construction is threatened by ocean acidification (OA). Identifying coral species that have specialised mechanisms to maintain high rates of calcification in the face of declining seawater pH is of paramount importance in predicting future species composition, and growth of coral reefs. Here, we studied multiple coral species from two distinct volcanic CO2 seeps in Papua New Guinea to assess their capacity to control their calcifying fluid (CF) chemistry. Several coral species living under conditions of low mean seawater pH, but with either low or high variability in seawater pH, were examined and compared with those living in ‘normal’ (non-seep) ambient seawater pH. We show that when mean seawater pH is low but highly variable, corals have a greater ability to maintain constant pHcf in their CF, but this characteristic was not linked with changes in abundance. Within less variable low pH seawater, corals with limited reductions in pHcf at the seep sites compared with controls tended to be more abundant at the seep site than at the control site. However, this finding was strongly influenced by a single species (Montipora foliosa), which was able to maintain complete pHcf homeostasis. Overall, although our findings indicate that there might be an association between ecological success and greater pHcf homeostasis, further research with additional species and at more sites with differing seawater pH regimes is required to solidify inferences regarding coral ecological success under future OA. Article in Journal/Newspaper Ocean acidification Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Global Change Biology 28 8 2751 2763 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
abundance calcification calcifying fluid coral coral reefs dissolved inorganic carbon ocean acidification Papua New Guinea |
spellingShingle |
abundance calcification calcifying fluid coral coral reefs dissolved inorganic carbon ocean acidification Papua New Guinea Comeau, Steeve Cornwall, Christopher E. Shlesinger, Tom Hoogenboom, Mia Mana, Ralph Mcculloch, Malcolm T. Rodolfo‐metalpa, Riccardo pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
topic_facet |
abundance calcification calcifying fluid coral coral reefs dissolved inorganic carbon ocean acidification Papua New Guinea |
description |
Coral reefs are iconic ecosystems with immense ecological, economic and cultural value, but globally their carbonate-based skeletal construction is threatened by ocean acidification (OA). Identifying coral species that have specialised mechanisms to maintain high rates of calcification in the face of declining seawater pH is of paramount importance in predicting future species composition, and growth of coral reefs. Here, we studied multiple coral species from two distinct volcanic CO2 seeps in Papua New Guinea to assess their capacity to control their calcifying fluid (CF) chemistry. Several coral species living under conditions of low mean seawater pH, but with either low or high variability in seawater pH, were examined and compared with those living in ‘normal’ (non-seep) ambient seawater pH. We show that when mean seawater pH is low but highly variable, corals have a greater ability to maintain constant pHcf in their CF, but this characteristic was not linked with changes in abundance. Within less variable low pH seawater, corals with limited reductions in pHcf at the seep sites compared with controls tended to be more abundant at the seep site than at the control site. However, this finding was strongly influenced by a single species (Montipora foliosa), which was able to maintain complete pHcf homeostasis. Overall, although our findings indicate that there might be an association between ecological success and greater pHcf homeostasis, further research with additional species and at more sites with differing seawater pH regimes is required to solidify inferences regarding coral ecological success under future OA. |
format |
Article in Journal/Newspaper |
author |
Comeau, Steeve Cornwall, Christopher E. Shlesinger, Tom Hoogenboom, Mia Mana, Ralph Mcculloch, Malcolm T. Rodolfo‐metalpa, Riccardo |
author_facet |
Comeau, Steeve Cornwall, Christopher E. Shlesinger, Tom Hoogenboom, Mia Mana, Ralph Mcculloch, Malcolm T. Rodolfo‐metalpa, Riccardo |
author_sort |
Comeau, Steeve |
title |
pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
title_short |
pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
title_full |
pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
title_fullStr |
pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
title_full_unstemmed |
pH variability at volcanic CO2 seeps regulates coral calcifying fluid chemistry |
title_sort |
ph variability at volcanic co2 seeps regulates coral calcifying fluid chemistry |
publisher |
Wiley |
publishDate |
2022 |
url |
https://archimer.ifremer.fr/doc/00750/86184/92658.pdf https://doi.org/10.1111/gcb.16093 https://archimer.ifremer.fr/doc/00750/86184/ |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Global Change Biology (1354-1013) (Wiley), 2022-04 , Vol. 28 , N. 8 , P. 2751-2763 |
op_relation |
https://archimer.ifremer.fr/doc/00750/86184/92658.pdf doi:10.1111/gcb.16093 https://archimer.ifremer.fr/doc/00750/86184/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1111/gcb.16093 |
container_title |
Global Change Biology |
container_volume |
28 |
container_issue |
8 |
container_start_page |
2751 |
op_container_end_page |
2763 |
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1766157601320468480 |