Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata
Ocean acidification (OA) refers to the ongoing decline in oceanic pH resulting from the uptake of atmospheric CO2. Mounting experimental evidence suggests that OA will have negative consequences for a variety of marine organisms. Whereas the effect of OA on the calcification of adult reef corals is...
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ftpubmed:oai:pubmedcentral.nih.gov:2996699 2023-05-15T17:50:44+02:00 Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata Albright, Rebecca Mason, Benjamin Miller, Margaret Langdon, Chris 2010-11-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996699 http://www.ncbi.nlm.nih.gov/pubmed/21059900 https://doi.org/10.1073/pnas.1007273107 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996699 http://www.ncbi.nlm.nih.gov/pubmed/21059900 http://dx.doi.org/10.1073/pnas.1007273107 Biological Sciences Text 2010 ftpubmed https://doi.org/10.1073/pnas.1007273107 2013-09-03T08:24:44Z Ocean acidification (OA) refers to the ongoing decline in oceanic pH resulting from the uptake of atmospheric CO2. Mounting experimental evidence suggests that OA will have negative consequences for a variety of marine organisms. Whereas the effect of OA on the calcification of adult reef corals is increasingly well documented, effects on early life history stages are largely unknown. Coral recruitment, which necessitates successful fertilization, larval settlement, and postsettlement growth and survivorship, is critical to the persistence and resilience of coral reefs. To determine whether OA threatens successful sexual recruitment of reef-building corals, we tested fertilization, settlement, and postsettlement growth of Acropora palmata at pCO2 levels that represent average ambient conditions during coral spawning (∼400 μatm) and the range of pCO2 increases that are expected to occur in this century [∼560 μatm (mid-CO2) and ∼800 μatm (high-CO2)]. Fertilization, settlement, and growth were all negatively impacted by increasing pCO2, and impairment of fertilization was exacerbated at lower sperm concentrations. The cumulative impact of OA on fertilization and settlement success is an estimated 52% and 73% reduction in the number of larval settlers on the reef under pCO2 conditions projected for the middle and the end of this century, respectively. Additional declines of 39% (mid-CO2) and 50% (high-CO2) were observed in postsettlement linear extension rates relative to controls. These results suggest that OA has the potential to impact multiple, sequential early life history stages, thereby severely compromising sexual recruitment and the ability of coral reefs to recover from disturbance. Text Ocean acidification PubMed Central (PMC) Proceedings of the National Academy of Sciences 107 47 20400 20404 |
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Biological Sciences Albright, Rebecca Mason, Benjamin Miller, Margaret Langdon, Chris Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
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Biological Sciences |
description |
Ocean acidification (OA) refers to the ongoing decline in oceanic pH resulting from the uptake of atmospheric CO2. Mounting experimental evidence suggests that OA will have negative consequences for a variety of marine organisms. Whereas the effect of OA on the calcification of adult reef corals is increasingly well documented, effects on early life history stages are largely unknown. Coral recruitment, which necessitates successful fertilization, larval settlement, and postsettlement growth and survivorship, is critical to the persistence and resilience of coral reefs. To determine whether OA threatens successful sexual recruitment of reef-building corals, we tested fertilization, settlement, and postsettlement growth of Acropora palmata at pCO2 levels that represent average ambient conditions during coral spawning (∼400 μatm) and the range of pCO2 increases that are expected to occur in this century [∼560 μatm (mid-CO2) and ∼800 μatm (high-CO2)]. Fertilization, settlement, and growth were all negatively impacted by increasing pCO2, and impairment of fertilization was exacerbated at lower sperm concentrations. The cumulative impact of OA on fertilization and settlement success is an estimated 52% and 73% reduction in the number of larval settlers on the reef under pCO2 conditions projected for the middle and the end of this century, respectively. Additional declines of 39% (mid-CO2) and 50% (high-CO2) were observed in postsettlement linear extension rates relative to controls. These results suggest that OA has the potential to impact multiple, sequential early life history stages, thereby severely compromising sexual recruitment and the ability of coral reefs to recover from disturbance. |
format |
Text |
author |
Albright, Rebecca Mason, Benjamin Miller, Margaret Langdon, Chris |
author_facet |
Albright, Rebecca Mason, Benjamin Miller, Margaret Langdon, Chris |
author_sort |
Albright, Rebecca |
title |
Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
title_short |
Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
title_full |
Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
title_fullStr |
Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
title_full_unstemmed |
Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata |
title_sort |
ocean acidification compromises recruitment success of the threatened caribbean coral acropora palmata |
publisher |
National Academy of Sciences |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996699 http://www.ncbi.nlm.nih.gov/pubmed/21059900 https://doi.org/10.1073/pnas.1007273107 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996699 http://www.ncbi.nlm.nih.gov/pubmed/21059900 http://dx.doi.org/10.1073/pnas.1007273107 |
op_doi |
https://doi.org/10.1073/pnas.1007273107 |
container_title |
Proceedings of the National Academy of Sciences |
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107 |
container_issue |
47 |
container_start_page |
20400 |
op_container_end_page |
20404 |
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1766157615725805568 |