Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms
Rising concentrations of atmospheric CO2 results in higher equilibrium concentrations of dissolved CO2 in natural waters, with corresponding increases in hydrogen ion and bicarbonate concentrations and decreases in hydroxyl ion and carbonate concentrations. Superimposed on these climate change effec...
Published in: | Harmful Algae |
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ftcopenhagenunip:oai:pure.atira.dk:publications/6a1fbb82-90bf-42a0-9c64-3b9b72b05d59 2024-06-09T07:48:49+00:00 Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms Raven, John A. Gobler, Christopher J. Hansen, Per Juel 2020 application/pdf https://curis.ku.dk/portal/da/publications/dynamic-co2-and-ph-levels-in-coastal-estuarine-and-inland-waters(6a1fbb82-90bf-42a0-9c64-3b9b72b05d59).html https://doi.org/10.1016/j.hal.2019.03.012 https://curis.ku.dk/ws/files/286634112/1_s2.0_S1568988319300381_main.pdf eng eng info:eu-repo/semantics/openAccess Raven , J A , Gobler , C J & Hansen , P J 2020 , ' Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters : theoretical and observed effects on harmful algal blooms ' , Harmful Algae , vol. 91 , 101594 . https://doi.org/10.1016/j.hal.2019.03.012 article 2020 ftcopenhagenunip https://doi.org/10.1016/j.hal.2019.03.012 2024-05-16T11:29:17Z Rising concentrations of atmospheric CO2 results in higher equilibrium concentrations of dissolved CO2 in natural waters, with corresponding increases in hydrogen ion and bicarbonate concentrations and decreases in hydroxyl ion and carbonate concentrations. Superimposed on these climate change effects is the dynamic nature of carbon cycling in coastal zones, which can lead to seasonal and diel changes in pH and CO2 concentrations that can exceed changes expected for open ocean ecosystems by the end of the century. Among harmful algae, i.e. some species and/or strains of Cyanobacteria, Dinophyceae, Prymnesiophyceae, Bacillariophyceae, and Ulvophyceae, the occurrence of a CO2 concentrating mechanisms (CCMs) is the most frequent mechanism of inorganic carbon acquisition in natural waters in equilibrium with the present atmosphere (400 μmol CO2 mol−1 total gas), with varying phenotypic modification of the CCM. No data on CCMs are available for Raphidophyceae or the brown tide Pelagophyceae. Several HAB species and/or strains respond to increased CO2 concentrations with increases in growth rate and/or cellular toxin content, however, others are unaffected. Beyond the effects of altered C concentrations and speciation on HABs, changes in pH in natural waters are likely to have profound effects on algal physiology. This review outlines the implications of changes in inorganic cycling for HABs in coastal zones, and reviews the knowns and unknowns with regard to how HABs can be expected to ocean acidification. We further point to the large regions of uncertainty with regard to this evolving field. Rising concentrations of atmospheric CO2 results in higher equilibrium concentrations of dissolved CO2 in natural waters, with corresponding increases in hydrogen ion and bicarbonate concentrations and decreases in hydroxyl ion and carbonate concentrations. Superimposed on these climate change effects is the dynamic nature of carbon cycling in coastal zones, which can lead to seasonal and diel changes in pH and CO2 ... Article in Journal/Newspaper Ocean acidification University of Copenhagen: Research Harmful Algae 91 101594 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Rising concentrations of atmospheric CO2 results in higher equilibrium concentrations of dissolved CO2 in natural waters, with corresponding increases in hydrogen ion and bicarbonate concentrations and decreases in hydroxyl ion and carbonate concentrations. Superimposed on these climate change effects is the dynamic nature of carbon cycling in coastal zones, which can lead to seasonal and diel changes in pH and CO2 concentrations that can exceed changes expected for open ocean ecosystems by the end of the century. Among harmful algae, i.e. some species and/or strains of Cyanobacteria, Dinophyceae, Prymnesiophyceae, Bacillariophyceae, and Ulvophyceae, the occurrence of a CO2 concentrating mechanisms (CCMs) is the most frequent mechanism of inorganic carbon acquisition in natural waters in equilibrium with the present atmosphere (400 μmol CO2 mol−1 total gas), with varying phenotypic modification of the CCM. No data on CCMs are available for Raphidophyceae or the brown tide Pelagophyceae. Several HAB species and/or strains respond to increased CO2 concentrations with increases in growth rate and/or cellular toxin content, however, others are unaffected. Beyond the effects of altered C concentrations and speciation on HABs, changes in pH in natural waters are likely to have profound effects on algal physiology. This review outlines the implications of changes in inorganic cycling for HABs in coastal zones, and reviews the knowns and unknowns with regard to how HABs can be expected to ocean acidification. We further point to the large regions of uncertainty with regard to this evolving field. Rising concentrations of atmospheric CO2 results in higher equilibrium concentrations of dissolved CO2 in natural waters, with corresponding increases in hydrogen ion and bicarbonate concentrations and decreases in hydroxyl ion and carbonate concentrations. Superimposed on these climate change effects is the dynamic nature of carbon cycling in coastal zones, which can lead to seasonal and diel changes in pH and CO2 ... |
format |
Article in Journal/Newspaper |
author |
Raven, John A. Gobler, Christopher J. Hansen, Per Juel |
spellingShingle |
Raven, John A. Gobler, Christopher J. Hansen, Per Juel Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
author_facet |
Raven, John A. Gobler, Christopher J. Hansen, Per Juel |
author_sort |
Raven, John A. |
title |
Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
title_short |
Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
title_full |
Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
title_fullStr |
Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
title_full_unstemmed |
Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
title_sort |
dynamic co 2 and ph levels in coastal, estuarine, and inland waters:theoretical and observed effects on harmful algal blooms |
publishDate |
2020 |
url |
https://curis.ku.dk/portal/da/publications/dynamic-co2-and-ph-levels-in-coastal-estuarine-and-inland-waters(6a1fbb82-90bf-42a0-9c64-3b9b72b05d59).html https://doi.org/10.1016/j.hal.2019.03.012 https://curis.ku.dk/ws/files/286634112/1_s2.0_S1568988319300381_main.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Raven , J A , Gobler , C J & Hansen , P J 2020 , ' Dynamic CO 2 and pH levels in coastal, estuarine, and inland waters : theoretical and observed effects on harmful algal blooms ' , Harmful Algae , vol. 91 , 101594 . https://doi.org/10.1016/j.hal.2019.03.012 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.hal.2019.03.012 |
container_title |
Harmful Algae |
container_volume |
91 |
container_start_page |
101594 |
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1801380713146089472 |