Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach
The urgent need to remediate ocean acidification has brought attention to the ability of marine macrophytes (seagrasses and seaweeds) to take up carbon dioxide (CO(2)) and locally raise seawater pH via primary production. This physiological process may represent a powerful ocean acidification mitiga...
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ftpubmed:oai:pubmedcentral.nih.gov:10566731 2023-11-12T04:23:44+01:00 Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach Ricart, Aurora M. Honisch, Brittney Fachon, Evangeline Hunt, Christopher W. Salisbury, Joseph Arnold, Suzanne N. Price, Nichole N. 2023-10-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566731/ http://www.ncbi.nlm.nih.gov/pubmed/37819926 https://doi.org/10.1371/journal.pone.0288548 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566731/ http://www.ncbi.nlm.nih.gov/pubmed/37819926 http://dx.doi.org/10.1371/journal.pone.0288548 © 2023 Ricart et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. PLoS One Research Article Text 2023 ftpubmed https://doi.org/10.1371/journal.pone.0288548 2023-10-15T01:06:23Z The urgent need to remediate ocean acidification has brought attention to the ability of marine macrophytes (seagrasses and seaweeds) to take up carbon dioxide (CO(2)) and locally raise seawater pH via primary production. This physiological process may represent a powerful ocean acidification mitigation tool in coastal areas. However, highly variable nearshore environmental conditions pose uncertainty in the extent of the amelioration effect. We developed experiments in aquaria to address two interconnected goals. First, we explored the individual capacities of four species of marine macrophytes (Ulva lactuca, Zostera marina, Fucus vesiculosus and Saccharina latissima) to ameliorate seawater acidity in experimentally elevated pCO2. Second, we used the most responsive species (i.e., S. latissima) to assess the effects of high and low water residence time on the amelioration of seawater acidity in ambient and simulated future scenarios of climate change across a gradient of irradiance. We measured changes in dissolved oxygen, pH, and total alkalinity, and derived resultant changes to dissolved inorganic carbon (DIC) and calcium carbonate saturation state (Ω). While all species increased productivity under elevated CO(2), S. latissima was able to remove DIC and alter pH and Ω more substantially as CO(2) increased. Additionally, the amelioration of seawater acidity by S. latissima was optimized under high irradiance and high residence time. However, the influence of water residence time was insignificant under future scenarios. Finally, we applied predictive models as a function of macrophyte biomass, irradiance, and residence time conditions in ambient and future climatic scenarios to allow projections at the ecosystem level. This research contributes to understanding the biological and physical drivers of the coastal CO(2) system. Text Ocean acidification PubMed Central (PMC) PLOS ONE 18 10 e0288548 |
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Research Article Ricart, Aurora M. Honisch, Brittney Fachon, Evangeline Hunt, Christopher W. Salisbury, Joseph Arnold, Suzanne N. Price, Nichole N. Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
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Research Article |
description |
The urgent need to remediate ocean acidification has brought attention to the ability of marine macrophytes (seagrasses and seaweeds) to take up carbon dioxide (CO(2)) and locally raise seawater pH via primary production. This physiological process may represent a powerful ocean acidification mitigation tool in coastal areas. However, highly variable nearshore environmental conditions pose uncertainty in the extent of the amelioration effect. We developed experiments in aquaria to address two interconnected goals. First, we explored the individual capacities of four species of marine macrophytes (Ulva lactuca, Zostera marina, Fucus vesiculosus and Saccharina latissima) to ameliorate seawater acidity in experimentally elevated pCO2. Second, we used the most responsive species (i.e., S. latissima) to assess the effects of high and low water residence time on the amelioration of seawater acidity in ambient and simulated future scenarios of climate change across a gradient of irradiance. We measured changes in dissolved oxygen, pH, and total alkalinity, and derived resultant changes to dissolved inorganic carbon (DIC) and calcium carbonate saturation state (Ω). While all species increased productivity under elevated CO(2), S. latissima was able to remove DIC and alter pH and Ω more substantially as CO(2) increased. Additionally, the amelioration of seawater acidity by S. latissima was optimized under high irradiance and high residence time. However, the influence of water residence time was insignificant under future scenarios. Finally, we applied predictive models as a function of macrophyte biomass, irradiance, and residence time conditions in ambient and future climatic scenarios to allow projections at the ecosystem level. This research contributes to understanding the biological and physical drivers of the coastal CO(2) system. |
format |
Text |
author |
Ricart, Aurora M. Honisch, Brittney Fachon, Evangeline Hunt, Christopher W. Salisbury, Joseph Arnold, Suzanne N. Price, Nichole N. |
author_facet |
Ricart, Aurora M. Honisch, Brittney Fachon, Evangeline Hunt, Christopher W. Salisbury, Joseph Arnold, Suzanne N. Price, Nichole N. |
author_sort |
Ricart, Aurora M. |
title |
Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
title_short |
Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
title_full |
Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
title_fullStr |
Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
title_full_unstemmed |
Optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: Insights from an experimental approach |
title_sort |
optimizing marine macrophyte capacity to locally ameliorate ocean acidification under variable light and flow regimes: insights from an experimental approach |
publisher |
Public Library of Science |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566731/ http://www.ncbi.nlm.nih.gov/pubmed/37819926 https://doi.org/10.1371/journal.pone.0288548 |
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Ocean acidification |
genre_facet |
Ocean acidification |
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PLoS One |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10566731/ http://www.ncbi.nlm.nih.gov/pubmed/37819926 http://dx.doi.org/10.1371/journal.pone.0288548 |
op_rights |
© 2023 Ricart et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_doi |
https://doi.org/10.1371/journal.pone.0288548 |
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PLOS ONE |
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18 |
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10 |
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e0288548 |
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