Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico
A four-decade dataset that spans seven estuaries along a latitudinal gradient in the northwestern Gulf of Mexico and includes measurements of pH and total alkalinity was used to calculate partial pressure of CO2 (pCO2), dissolved inorganic carbon (DIC), saturation state of aragonite (ΩAr), and a buf...
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Online Access: | https://doi.org/10.3389/fmars.2022.793065 https://doaj.org/article/e5c494cdc24e43dd9ceca7a6ed257a25 |
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ftdoajarticles:oai:doaj.org/article:e5c494cdc24e43dd9ceca7a6ed257a25 2023-05-15T17:51:30+02:00 Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico Melissa R. McCutcheon Xinping Hu 2022-03-01T00:00:00Z https://doi.org/10.3389/fmars.2022.793065 https://doaj.org/article/e5c494cdc24e43dd9ceca7a6ed257a25 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.793065/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.793065 https://doaj.org/article/e5c494cdc24e43dd9ceca7a6ed257a25 Frontiers in Marine Science, Vol 9 (2022) long-term trend carbonate chemistry pCO2 buffer capacity estuary Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.793065 2022-12-31T02:28:25Z A four-decade dataset that spans seven estuaries along a latitudinal gradient in the northwestern Gulf of Mexico and includes measurements of pH and total alkalinity was used to calculate partial pressure of CO2 (pCO2), dissolved inorganic carbon (DIC), saturation state of aragonite (ΩAr), and a buffer factor (βDIC, which measures the response of proton concentration or pH to DIC concentration change) and examine long-term trends and spatial patterns in these parameters. With the notable exception of the northernmost and southernmost estuaries (and selected stations near freshwater input), these estuaries have generally experienced long-term increases in pCO2 and decreases in DIC, ΩAr, and βDIC, with the magnitude of change generally increasing from north to south. At all stations with increasing pCO2, the rate of increase exceeded the rate of increase in atmospheric pCO2, indicating that these estuaries have become a greater source of CO2 to the atmosphere over the last few decades. The decreases in ΩAr have yet to cause ΩAr to near undersaturation, but even the observed decreases may have the potential to decrease calcification rates in important estuarine calcifiers like oysters. The decreases in βDIC directly indicate that these estuaries have experienced continually greater change in pH in the context of ocean acidification. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 9 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
long-term trend carbonate chemistry pCO2 buffer capacity estuary Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
long-term trend carbonate chemistry pCO2 buffer capacity estuary Science Q General. Including nature conservation geographical distribution QH1-199.5 Melissa R. McCutcheon Xinping Hu Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
topic_facet |
long-term trend carbonate chemistry pCO2 buffer capacity estuary Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
A four-decade dataset that spans seven estuaries along a latitudinal gradient in the northwestern Gulf of Mexico and includes measurements of pH and total alkalinity was used to calculate partial pressure of CO2 (pCO2), dissolved inorganic carbon (DIC), saturation state of aragonite (ΩAr), and a buffer factor (βDIC, which measures the response of proton concentration or pH to DIC concentration change) and examine long-term trends and spatial patterns in these parameters. With the notable exception of the northernmost and southernmost estuaries (and selected stations near freshwater input), these estuaries have generally experienced long-term increases in pCO2 and decreases in DIC, ΩAr, and βDIC, with the magnitude of change generally increasing from north to south. At all stations with increasing pCO2, the rate of increase exceeded the rate of increase in atmospheric pCO2, indicating that these estuaries have become a greater source of CO2 to the atmosphere over the last few decades. The decreases in ΩAr have yet to cause ΩAr to near undersaturation, but even the observed decreases may have the potential to decrease calcification rates in important estuarine calcifiers like oysters. The decreases in βDIC directly indicate that these estuaries have experienced continually greater change in pH in the context of ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Melissa R. McCutcheon Xinping Hu |
author_facet |
Melissa R. McCutcheon Xinping Hu |
author_sort |
Melissa R. McCutcheon |
title |
Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
title_short |
Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
title_full |
Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
title_fullStr |
Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
title_full_unstemmed |
Long-Term Trends in Estuarine Carbonate Chemistry in the Northwestern Gulf of Mexico |
title_sort |
long-term trends in estuarine carbonate chemistry in the northwestern gulf of mexico |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.793065 https://doaj.org/article/e5c494cdc24e43dd9ceca7a6ed257a25 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.793065/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.793065 https://doaj.org/article/e5c494cdc24e43dd9ceca7a6ed257a25 |
op_doi |
https://doi.org/10.3389/fmars.2022.793065 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766158678659956736 |