Will ocean acidification affect marine microbes?
The pH of the surface ocean is changing as a result of increases in atmospheric carbon dioxide (CO2), and there are concerns about potential impacts of lower pH and associated alterations in seawater carbonate chemistry on the biogeochemical processes in the ocean. However, it is important to place...
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ftpubmed:oai:pubmedcentral.nih.gov:3105673 2023-05-15T17:50:26+02:00 Will ocean acidification affect marine microbes? Joint, Ian Doney, Scott C Karl, David M 2011-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105673 http://www.ncbi.nlm.nih.gov/pubmed/20535222 https://doi.org/10.1038/ismej.2010.79 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105673 http://www.ncbi.nlm.nih.gov/pubmed/20535222 http://dx.doi.org/10.1038/ismej.2010.79 Copyright © 2011 International Society for Microbial Ecology Perspective Text 2011 ftpubmed https://doi.org/10.1038/ismej.2010.79 2013-09-03T15:22:32Z The pH of the surface ocean is changing as a result of increases in atmospheric carbon dioxide (CO2), and there are concerns about potential impacts of lower pH and associated alterations in seawater carbonate chemistry on the biogeochemical processes in the ocean. However, it is important to place these changes within the context of pH in the present-day ocean, which is not constant; it varies systematically with season, depth and along productivity gradients. Yet this natural variability in pH has rarely been considered in assessments of the effect of ocean acidification on marine microbes. Surface pH can change as a consequence of microbial utilization and production of carbon dioxide, and to a lesser extent other microbially mediated processes such as nitrification. Useful comparisons can be made with microbes in other aquatic environments that readily accommodate very large and rapid pH change. For example, in many freshwater lakes, pH changes that are orders of magnitude greater than those projected for the twenty second century oceans can occur over periods of hours. Marine and freshwater assemblages have always experienced variable pH conditions. Therefore, an appropriate null hypothesis may be, until evidence is obtained to the contrary, that major biogeochemical processes in the oceans other than calcification will not be fundamentally different under future higher CO2/lower pH conditions. Text Ocean acidification PubMed Central (PMC) The ISME Journal 5 1 1 7 |
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Perspective Joint, Ian Doney, Scott C Karl, David M Will ocean acidification affect marine microbes? |
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The pH of the surface ocean is changing as a result of increases in atmospheric carbon dioxide (CO2), and there are concerns about potential impacts of lower pH and associated alterations in seawater carbonate chemistry on the biogeochemical processes in the ocean. However, it is important to place these changes within the context of pH in the present-day ocean, which is not constant; it varies systematically with season, depth and along productivity gradients. Yet this natural variability in pH has rarely been considered in assessments of the effect of ocean acidification on marine microbes. Surface pH can change as a consequence of microbial utilization and production of carbon dioxide, and to a lesser extent other microbially mediated processes such as nitrification. Useful comparisons can be made with microbes in other aquatic environments that readily accommodate very large and rapid pH change. For example, in many freshwater lakes, pH changes that are orders of magnitude greater than those projected for the twenty second century oceans can occur over periods of hours. Marine and freshwater assemblages have always experienced variable pH conditions. Therefore, an appropriate null hypothesis may be, until evidence is obtained to the contrary, that major biogeochemical processes in the oceans other than calcification will not be fundamentally different under future higher CO2/lower pH conditions. |
format |
Text |
author |
Joint, Ian Doney, Scott C Karl, David M |
author_facet |
Joint, Ian Doney, Scott C Karl, David M |
author_sort |
Joint, Ian |
title |
Will ocean acidification affect marine microbes? |
title_short |
Will ocean acidification affect marine microbes? |
title_full |
Will ocean acidification affect marine microbes? |
title_fullStr |
Will ocean acidification affect marine microbes? |
title_full_unstemmed |
Will ocean acidification affect marine microbes? |
title_sort |
will ocean acidification affect marine microbes? |
publisher |
Nature Publishing Group |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105673 http://www.ncbi.nlm.nih.gov/pubmed/20535222 https://doi.org/10.1038/ismej.2010.79 |
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Ocean acidification |
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Ocean acidification |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3105673 http://www.ncbi.nlm.nih.gov/pubmed/20535222 http://dx.doi.org/10.1038/ismej.2010.79 |
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Copyright © 2011 International Society for Microbial Ecology |
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https://doi.org/10.1038/ismej.2010.79 |
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