Impact of local rivers on coastal acidification
Coastal ecosystems are highly dynamic areas for carbon cycling and are likely to be negatively impacted by increasing ocean acidification. This research focused on dissolved inorganic carbon (DIC) and total alkalinity (TA) in the Mississippi Sound to understand the influence of local rivers on coast...
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ftpubmed:oai:pubmedcentral.nih.gov:10369924 2023-08-20T04:09:01+02:00 Impact of local rivers on coastal acidification Savoie, Allison M. Moody, Amy Gilbert, Melissa Dillon, Kevin S. Howden, Stephan D. Shiller, Alan M. Hayes, Christopher T. 2022-10-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10369924/ https://doi.org/10.1002/lno.12237 en eng John Wiley & Sons, Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10369924/ http://dx.doi.org/10.1002/lno.12237 © 2022 The Authors. Limnology and Oceanography published by Wiley Periodicals LLC on behalf of Association for the Sciences of Limnology and Oceanography. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. Limnol Oceanogr Articles Text 2022 ftpubmed https://doi.org/10.1002/lno.12237 2023-07-30T01:03:03Z Coastal ecosystems are highly dynamic areas for carbon cycling and are likely to be negatively impacted by increasing ocean acidification. This research focused on dissolved inorganic carbon (DIC) and total alkalinity (TA) in the Mississippi Sound to understand the influence of local rivers on coastal acidification. This area receives large fluxes of freshwater from local rivers, in addition to episodic inputs from the Mississippi River through a human‐built diversion, the Bonnet Carré Spillway. Sites in the Sound were sampled monthly from August 2018 to November 2019 and weekly from June to August 2019 in response to an extended spillway opening. Prior to the 2019 spillway opening, the contribution of the local, lower alkalinity rivers to the Sound may have left the study area more susceptible to coastal acidification during winter months, with aragonite saturation states (Ω(ar)) < 2. After the spillway opened, despite a large increase in TA throughout the Sound, aragonite saturation states remained low, likely due to hypoxia and increased CO(2) concentrations in subsurface waters. Increased Mississippi River input could represent a new normal in the Sound's hydrography during spring and summer months. The spillway has been utilized more frequently over the last two decades due to increasing precipitation in the Mississippi River watershed, which is primarily associated with climate change. Future increases in freshwater discharge and the associated declines in salinity, dissolved oxygen, and Ω(ar) in the Sound will likely be detrimental to oyster stocks and the resilience of similar ecosystems to coastal acidification. Text Ocean acidification PubMed Central (PMC) Limnology and Oceanography 67 12 2779 2795 |
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Articles Savoie, Allison M. Moody, Amy Gilbert, Melissa Dillon, Kevin S. Howden, Stephan D. Shiller, Alan M. Hayes, Christopher T. Impact of local rivers on coastal acidification |
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Articles |
description |
Coastal ecosystems are highly dynamic areas for carbon cycling and are likely to be negatively impacted by increasing ocean acidification. This research focused on dissolved inorganic carbon (DIC) and total alkalinity (TA) in the Mississippi Sound to understand the influence of local rivers on coastal acidification. This area receives large fluxes of freshwater from local rivers, in addition to episodic inputs from the Mississippi River through a human‐built diversion, the Bonnet Carré Spillway. Sites in the Sound were sampled monthly from August 2018 to November 2019 and weekly from June to August 2019 in response to an extended spillway opening. Prior to the 2019 spillway opening, the contribution of the local, lower alkalinity rivers to the Sound may have left the study area more susceptible to coastal acidification during winter months, with aragonite saturation states (Ω(ar)) < 2. After the spillway opened, despite a large increase in TA throughout the Sound, aragonite saturation states remained low, likely due to hypoxia and increased CO(2) concentrations in subsurface waters. Increased Mississippi River input could represent a new normal in the Sound's hydrography during spring and summer months. The spillway has been utilized more frequently over the last two decades due to increasing precipitation in the Mississippi River watershed, which is primarily associated with climate change. Future increases in freshwater discharge and the associated declines in salinity, dissolved oxygen, and Ω(ar) in the Sound will likely be detrimental to oyster stocks and the resilience of similar ecosystems to coastal acidification. |
format |
Text |
author |
Savoie, Allison M. Moody, Amy Gilbert, Melissa Dillon, Kevin S. Howden, Stephan D. Shiller, Alan M. Hayes, Christopher T. |
author_facet |
Savoie, Allison M. Moody, Amy Gilbert, Melissa Dillon, Kevin S. Howden, Stephan D. Shiller, Alan M. Hayes, Christopher T. |
author_sort |
Savoie, Allison M. |
title |
Impact of local rivers on coastal acidification |
title_short |
Impact of local rivers on coastal acidification |
title_full |
Impact of local rivers on coastal acidification |
title_fullStr |
Impact of local rivers on coastal acidification |
title_full_unstemmed |
Impact of local rivers on coastal acidification |
title_sort |
impact of local rivers on coastal acidification |
publisher |
John Wiley & Sons, Inc. |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10369924/ https://doi.org/10.1002/lno.12237 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Limnol Oceanogr |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10369924/ http://dx.doi.org/10.1002/lno.12237 |
op_rights |
© 2022 The Authors. Limnology and Oceanography published by Wiley Periodicals LLC on behalf of Association for the Sciences of Limnology and Oceanography. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
op_doi |
https://doi.org/10.1002/lno.12237 |
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Limnology and Oceanography |
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67 |
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12 |
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2779 |
op_container_end_page |
2795 |
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