Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2)
Anthropogenic emission of CO(2) into the atmosphere has been increasing exponentially, causing ocean acidification (OA) and ocean warming (OW). The “business-as-usual” scenario predicts that the atmospheric concentration of CO(2) may exceed 1,000 µatm and seawater temperature may increase by up to 3...
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ftpubmed:oai:pubmedcentral.nih.gov:7759137 2023-05-15T17:51:47+02:00 Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) Manullang, Cristiana Millyaningrum, Intan Herwindra Iguchi, Akira Miyagi, Aika Tanaka, Yasuaki Nojiri, Yukihiro Sakai, Kazuhiko 2020-12-21 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759137/ https://doi.org/10.7717/peerj.10562 en eng PeerJ Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759137/ http://dx.doi.org/10.7717/peerj.10562 ©2020 Manullang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. CC-BY PeerJ Conservation Biology Text 2020 ftpubmed https://doi.org/10.7717/peerj.10562 2021-01-03T01:43:09Z Anthropogenic emission of CO(2) into the atmosphere has been increasing exponentially, causing ocean acidification (OA) and ocean warming (OW). The “business-as-usual” scenario predicts that the atmospheric concentration of CO(2) may exceed 1,000 µatm and seawater temperature may increase by up to 3 °C by the end of the 21(st) century. Increases in OA and OW may negatively affect the growth and survival of reef corals. In the present study, we separately examined the effects of OW and OA on the corals Acropora digitifera and Montipora digitata, which are dominant coral species occurring along the Ryukyu Archipelago, Japan, at three temperatures (28 °C, 30 °C, and 32 °C) and following four pCO(2) treatments (400, 600, 800, and 1,000 µatm) in aquarium experiments. In the OW experiment, the calcification rate (p = 0.02), endosymbiont density, and maximum photosynthetic efficiency (Fv/Fm) (both p < 0.0001) decreased significantly at the highest temperature (32 °C) compared to those at the lower temperatures (28 °C and 30 °C) in both species. In the OA experiment, the calcification rate decreased significantly as pCO(2) increased (p < 0.0001), whereas endosymbiont density, chlorophyll content, and Fv/Fm were not affected. The calcification rate of A. digitifera showed greater decreases from 30 °C to 32 °C than that of M. digitata. The calcification of the two species responded differently to OW and OA. These results suggest that A. digitifera is more sensitive to OW than M. digitata, whereas M. digitata is more sensitive to OA. Thus, differences in the sensitivity of the two coral species to OW and OA might be attributed to differences in the endosymbiont species and high calcification rates, respectively. Text Ocean acidification PubMed Central (PMC) PeerJ 8 e10562 |
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English |
topic |
Conservation Biology |
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Conservation Biology Manullang, Cristiana Millyaningrum, Intan Herwindra Iguchi, Akira Miyagi, Aika Tanaka, Yasuaki Nojiri, Yukihiro Sakai, Kazuhiko Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
topic_facet |
Conservation Biology |
description |
Anthropogenic emission of CO(2) into the atmosphere has been increasing exponentially, causing ocean acidification (OA) and ocean warming (OW). The “business-as-usual” scenario predicts that the atmospheric concentration of CO(2) may exceed 1,000 µatm and seawater temperature may increase by up to 3 °C by the end of the 21(st) century. Increases in OA and OW may negatively affect the growth and survival of reef corals. In the present study, we separately examined the effects of OW and OA on the corals Acropora digitifera and Montipora digitata, which are dominant coral species occurring along the Ryukyu Archipelago, Japan, at three temperatures (28 °C, 30 °C, and 32 °C) and following four pCO(2) treatments (400, 600, 800, and 1,000 µatm) in aquarium experiments. In the OW experiment, the calcification rate (p = 0.02), endosymbiont density, and maximum photosynthetic efficiency (Fv/Fm) (both p < 0.0001) decreased significantly at the highest temperature (32 °C) compared to those at the lower temperatures (28 °C and 30 °C) in both species. In the OA experiment, the calcification rate decreased significantly as pCO(2) increased (p < 0.0001), whereas endosymbiont density, chlorophyll content, and Fv/Fm were not affected. The calcification rate of A. digitifera showed greater decreases from 30 °C to 32 °C than that of M. digitata. The calcification of the two species responded differently to OW and OA. These results suggest that A. digitifera is more sensitive to OW than M. digitata, whereas M. digitata is more sensitive to OA. Thus, differences in the sensitivity of the two coral species to OW and OA might be attributed to differences in the endosymbiont species and high calcification rates, respectively. |
format |
Text |
author |
Manullang, Cristiana Millyaningrum, Intan Herwindra Iguchi, Akira Miyagi, Aika Tanaka, Yasuaki Nojiri, Yukihiro Sakai, Kazuhiko |
author_facet |
Manullang, Cristiana Millyaningrum, Intan Herwindra Iguchi, Akira Miyagi, Aika Tanaka, Yasuaki Nojiri, Yukihiro Sakai, Kazuhiko |
author_sort |
Manullang, Cristiana |
title |
Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
title_short |
Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
title_full |
Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
title_fullStr |
Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
title_full_unstemmed |
Responses of branching reef corals Acropora digitifera and Montipora digitata to elevated temperature and pCO(2) |
title_sort |
responses of branching reef corals acropora digitifera and montipora digitata to elevated temperature and pco(2) |
publisher |
PeerJ Inc. |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759137/ https://doi.org/10.7717/peerj.10562 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PeerJ |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759137/ http://dx.doi.org/10.7717/peerj.10562 |
op_rights |
©2020 Manullang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
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CC-BY |
op_doi |
https://doi.org/10.7717/peerj.10562 |
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PeerJ |
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8 |
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e10562 |
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