Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis
Ocean acidification may negatively impact the early life stages of some marine invertebrates including corals. Although reduced growth of juvenile corals in acidified seawater has been reported, coral larvae have been reported to demonstrate some level of tolerance to reduced pH. We hypothesize that...
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ftpubmed:oai:pubmedcentral.nih.gov:3022010 2023-05-15T17:50:29+02:00 Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis Nakamura, Masako Ohki, Shun Suzuki, Atsushi Sakai, Kazuhiko 2011-01-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022010 http://www.ncbi.nlm.nih.gov/pubmed/21264208 https://doi.org/10.1371/journal.pone.0014521 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022010 http://www.ncbi.nlm.nih.gov/pubmed/21264208 http://dx.doi.org/10.1371/journal.pone.0014521 Nakamura et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2011 ftpubmed https://doi.org/10.1371/journal.pone.0014521 2013-09-03T10:01:37Z Ocean acidification may negatively impact the early life stages of some marine invertebrates including corals. Although reduced growth of juvenile corals in acidified seawater has been reported, coral larvae have been reported to demonstrate some level of tolerance to reduced pH. We hypothesize that the observed tolerance of coral larvae to low pH may be partly explained by reduced metabolic rates in acidified seawater because both calcifying and non-calcifying marine invertebrates could show metabolic depression under reduced pH in order to enhance their survival. In this study, after 3-d and 7-d exposure to three different pH levels (8.0, 7.6, and 7.3), we found that the oxygen consumption of Acropora digitifera larvae tended to be suppressed with reduced pH, although a statistically significant difference was not observed between pH conditions. Larval metamorphosis was also observed, confirming that successful recruitment is impaired when metamorphosis is disrupted, despite larval survival. Results also showed that the metamorphosis rate significantly decreased under acidified seawater conditions after both short (2 h) and long (7 d) term exposure. These results imply that acidified seawater impacts larval physiology, suggesting that suppressed metabolism and metamorphosis may alter the dispersal potential of larvae and subsequently reduce the resilience of coral communities in the near future as the ocean pH decreases. Text Ocean acidification PubMed Central (PMC) PLoS ONE 6 1 e14521 |
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Research Article Nakamura, Masako Ohki, Shun Suzuki, Atsushi Sakai, Kazuhiko Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
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Research Article |
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Ocean acidification may negatively impact the early life stages of some marine invertebrates including corals. Although reduced growth of juvenile corals in acidified seawater has been reported, coral larvae have been reported to demonstrate some level of tolerance to reduced pH. We hypothesize that the observed tolerance of coral larvae to low pH may be partly explained by reduced metabolic rates in acidified seawater because both calcifying and non-calcifying marine invertebrates could show metabolic depression under reduced pH in order to enhance their survival. In this study, after 3-d and 7-d exposure to three different pH levels (8.0, 7.6, and 7.3), we found that the oxygen consumption of Acropora digitifera larvae tended to be suppressed with reduced pH, although a statistically significant difference was not observed between pH conditions. Larval metamorphosis was also observed, confirming that successful recruitment is impaired when metamorphosis is disrupted, despite larval survival. Results also showed that the metamorphosis rate significantly decreased under acidified seawater conditions after both short (2 h) and long (7 d) term exposure. These results imply that acidified seawater impacts larval physiology, suggesting that suppressed metabolism and metamorphosis may alter the dispersal potential of larvae and subsequently reduce the resilience of coral communities in the near future as the ocean pH decreases. |
format |
Text |
author |
Nakamura, Masako Ohki, Shun Suzuki, Atsushi Sakai, Kazuhiko |
author_facet |
Nakamura, Masako Ohki, Shun Suzuki, Atsushi Sakai, Kazuhiko |
author_sort |
Nakamura, Masako |
title |
Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
title_short |
Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
title_full |
Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
title_fullStr |
Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
title_full_unstemmed |
Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis |
title_sort |
coral larvae under ocean acidification: survival, metabolism, and metamorphosis |
publisher |
Public Library of Science |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022010 http://www.ncbi.nlm.nih.gov/pubmed/21264208 https://doi.org/10.1371/journal.pone.0014521 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022010 http://www.ncbi.nlm.nih.gov/pubmed/21264208 http://dx.doi.org/10.1371/journal.pone.0014521 |
op_rights |
Nakamura et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0014521 |
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PLoS ONE |
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6 |
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e14521 |
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1766157246759174144 |