Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga
Crustose coralline algae (CCA) are among the most sensitive marine taxa to the pH changes predicted with ocean acidification (OA). However, many CCA exist in habitats where diel cycles in pH can surpass near-future OA projections. The prevailing theory that natural variability increases the toleranc...
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Language: | English |
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PANGAEA
2019
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.907776 https://doi.org/10.1594/PANGAEA.907776 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907776 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard error Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Laboratory experiment Lithophyllum congestum Macroalgae Maximum photochemical quantum yield of photosystem II North Atlantic OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH pH change Plantae Primary production/Photosynthesis Registration number of species Rhodophyta Salinity |
spellingShingle |
Alkalinity total standard error Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Laboratory experiment Lithophyllum congestum Macroalgae Maximum photochemical quantum yield of photosystem II North Atlantic OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH pH change Plantae Primary production/Photosynthesis Registration number of species Rhodophyta Salinity Johnson, Maggie Dorothy Rodriguez Bravo, Lucia M O'Connor, Shevonne E Varley, Nicholas F Altieri, Andrew H Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
topic_facet |
Alkalinity total standard error Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Laboratory experiment Lithophyllum congestum Macroalgae Maximum photochemical quantum yield of photosystem II North Atlantic OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH pH change Plantae Primary production/Photosynthesis Registration number of species Rhodophyta Salinity |
description |
Crustose coralline algae (CCA) are among the most sensitive marine taxa to the pH changes predicted with ocean acidification (OA). However, many CCA exist in habitats where diel cycles in pH can surpass near-future OA projections. The prevailing theory that natural variability increases the tolerance of calcifiers to OA has not been widely tested with tropical CCA. Here, we assess the response of the reef-building species Lithophyllum congestum to stable and variable pH treatments, including an ambient control (amb/stable). The amb/variable treatment simulated an ambient diel cycle in pH (7.65–7.95), OA/stable simulated constant low pH reflecting worst-case year 2100 predictions (7.7), and OA/variable combined diel cycling with lower mean pH (7.45–7.75). We monitored the effects of pH on total calcification rate and photophysiology (maximum quantum yield) over 16 weeks. To assess the potential for acclimatization, we also quantified calcification rates during the first (0–8 weeks), and second (8–16 weeks) halves of the experiment. Calcification rates were lower in all pH treatments relative to ambient controls and photophysiology was unaffected. At the end of the 16-week experiment, total calcification rates were similarly low in the amb/variable and OA/stable treatment (27–29%), whereas rates declined by double in the OA/variable treatment (60%). When comparing the first and second halves of the experiment, there was no acclimatization in stable treatments as calcification rates remained unchanged in both the amb/stable and OA/stable treatments. In contrast, calcification rates deteriorated between periods in the variable treatments: from a 16–47% reduction in the amb/variable treatment to a 49–79% reduction in the OA/variable treatment, relative to controls. Our findings provide compelling evidence that pH variability can heighten CCA sensitivity to reductions in pH. Moreover, the decline in calcification rate over time directly contrasts prevailing theory that variability inherently increases organismal ... |
format |
Dataset |
author |
Johnson, Maggie Dorothy Rodriguez Bravo, Lucia M O'Connor, Shevonne E Varley, Nicholas F Altieri, Andrew H |
author_facet |
Johnson, Maggie Dorothy Rodriguez Bravo, Lucia M O'Connor, Shevonne E Varley, Nicholas F Altieri, Andrew H |
author_sort |
Johnson, Maggie Dorothy |
title |
Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
title_short |
Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
title_full |
Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
title_fullStr |
Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
title_full_unstemmed |
Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga |
title_sort |
seawater carbonate chemistry and maximum quantum yield, net calcification rate of a caribbean crustose coralline alga |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.907776 https://doi.org/10.1594/PANGAEA.907776 |
genre |
North Atlantic Ocean acidification |
genre_facet |
North Atlantic Ocean acidification |
op_source |
Supplement to: Johnson, Maggie Dorothy; Rodriguez Bravo, Lucia M; O'Connor, Shevonne E; Varley, Nicholas F; Altieri, Andrew H (2019): pH Variability Exacerbates Effects of Ocean Acidification on a Caribbean Crustose Coralline Alga. Frontiers in Marine Science, 6, https://doi.org/10.3389/fmars.2019.00150 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.907776 https://doi.org/10.1594/PANGAEA.907776 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.90777610.3389/fmars.2019.00150 |
_version_ |
1810464881924636672 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907776 2024-09-15T18:24:31+00:00 Seawater carbonate chemistry and maximum quantum yield, net calcification rate of a Caribbean Crustose Coralline Alga Johnson, Maggie Dorothy Rodriguez Bravo, Lucia M O'Connor, Shevonne E Varley, Nicholas F Altieri, Andrew H 2019 text/tab-separated-values, 164 data points https://doi.pangaea.de/10.1594/PANGAEA.907776 https://doi.org/10.1594/PANGAEA.907776 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.907776 https://doi.org/10.1594/PANGAEA.907776 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Johnson, Maggie Dorothy; Rodriguez Bravo, Lucia M; O'Connor, Shevonne E; Varley, Nicholas F; Altieri, Andrew H (2019): pH Variability Exacerbates Effects of Ocean Acidification on a Caribbean Crustose Coralline Alga. Frontiers in Marine Science, 6, https://doi.org/10.3389/fmars.2019.00150 Alkalinity total standard error Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Laboratory experiment Lithophyllum congestum Macroalgae Maximum photochemical quantum yield of photosystem II North Atlantic OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH pH change Plantae Primary production/Photosynthesis Registration number of species Rhodophyta Salinity dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.90777610.3389/fmars.2019.00150 2024-07-24T02:31:34Z Crustose coralline algae (CCA) are among the most sensitive marine taxa to the pH changes predicted with ocean acidification (OA). However, many CCA exist in habitats where diel cycles in pH can surpass near-future OA projections. The prevailing theory that natural variability increases the tolerance of calcifiers to OA has not been widely tested with tropical CCA. Here, we assess the response of the reef-building species Lithophyllum congestum to stable and variable pH treatments, including an ambient control (amb/stable). The amb/variable treatment simulated an ambient diel cycle in pH (7.65–7.95), OA/stable simulated constant low pH reflecting worst-case year 2100 predictions (7.7), and OA/variable combined diel cycling with lower mean pH (7.45–7.75). We monitored the effects of pH on total calcification rate and photophysiology (maximum quantum yield) over 16 weeks. To assess the potential for acclimatization, we also quantified calcification rates during the first (0–8 weeks), and second (8–16 weeks) halves of the experiment. Calcification rates were lower in all pH treatments relative to ambient controls and photophysiology was unaffected. At the end of the 16-week experiment, total calcification rates were similarly low in the amb/variable and OA/stable treatment (27–29%), whereas rates declined by double in the OA/variable treatment (60%). When comparing the first and second halves of the experiment, there was no acclimatization in stable treatments as calcification rates remained unchanged in both the amb/stable and OA/stable treatments. In contrast, calcification rates deteriorated between periods in the variable treatments: from a 16–47% reduction in the amb/variable treatment to a 49–79% reduction in the OA/variable treatment, relative to controls. Our findings provide compelling evidence that pH variability can heighten CCA sensitivity to reductions in pH. Moreover, the decline in calcification rate over time directly contrasts prevailing theory that variability inherently increases organismal ... Dataset North Atlantic Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |