Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking
Ongoing ocean warming and acidification are tied to the rapid accumulation of human-induced carbon dioxide (CO2) in the atmosphere and subsequent uptake of heat and CO2 by the surface ocean. These processes are expected to drive large changes in marine ecosystems. While numerous studies have examine...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.869470 2024-09-15T18:28:23+00:00 Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking Milner, Sara Langer, Gerald Grelaud, Michaël Ziveri, Patrizia 2016 text/tab-separated-values, 474 data points https://doi.pangaea.de/10.1594/PANGAEA.869470 https://doi.org/10.1594/PANGAEA.869470 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.869470 https://doi.org/10.1594/PANGAEA.869470 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Milner, Sara; Langer, Gerald; Grelaud, Michaël; Ziveri, Patrizia (2016): Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking. Limnology and Oceanography, 61(4), 1322-1336, https://doi.org/10.1002/lno.10292 Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell production per cell organic Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coccoliths normal dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.86947010.1002/lno.10292 2024-07-24T02:31:33Z Ongoing ocean warming and acidification are tied to the rapid accumulation of human-induced carbon dioxide (CO2) in the atmosphere and subsequent uptake of heat and CO2 by the surface ocean. These processes are expected to drive large changes in marine ecosystems. While numerous studies have examined the effects of ocean acidification on coccolithophores, less is known on their combined effect. In this study, we investigate temperature modulation of the carbonate chemistry sensitivity of the coccolithophore Emiliania huxleyi (RCC1827 from the Western Mediterranean) in a culture experiment. We analyzed the responses of coccolith morphology, particulate inorganic and organic carbon production, and sinking rate of individual cells. E. huxleyi was exposed to three CO2 levels (ca. 400 µatm, 900 µatm, and 1400 µatm) at 15°C and 20°C. Temperature adds to the negative effect of increasing pCO2 on coccolith morphology, suggesting that a significant number of E. huxleyi strains might suffer from a temperature increase, hampering their evolutionary success. Temperature amplified the positive effect of increasing pCO2 on organic carbon production, while modulating the response of calcification rates, indicating that the response to increasing pCO2 must be taken with caution depending on the temperature range studied. Sinking rates were positively correlated with temperature, whereas pCO2 did not have any effect. The combined effect of carbonate chemistry and temperature on the E. huxleyi ratio between particulate inorganic carbon and particulate organic carbon (PIC/POC) might also lower the sinking rate of aggregates. In conclusion, in a warmer and more acidified ocean, individual coccolithophore cells might sink faster, while aggregates might sink slower. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell production per cell organic Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coccoliths normal |
spellingShingle |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell production per cell organic Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coccoliths normal Milner, Sara Langer, Gerald Grelaud, Michaël Ziveri, Patrizia Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
topic_facet |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell production per cell organic Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coccoliths normal |
description |
Ongoing ocean warming and acidification are tied to the rapid accumulation of human-induced carbon dioxide (CO2) in the atmosphere and subsequent uptake of heat and CO2 by the surface ocean. These processes are expected to drive large changes in marine ecosystems. While numerous studies have examined the effects of ocean acidification on coccolithophores, less is known on their combined effect. In this study, we investigate temperature modulation of the carbonate chemistry sensitivity of the coccolithophore Emiliania huxleyi (RCC1827 from the Western Mediterranean) in a culture experiment. We analyzed the responses of coccolith morphology, particulate inorganic and organic carbon production, and sinking rate of individual cells. E. huxleyi was exposed to three CO2 levels (ca. 400 µatm, 900 µatm, and 1400 µatm) at 15°C and 20°C. Temperature adds to the negative effect of increasing pCO2 on coccolith morphology, suggesting that a significant number of E. huxleyi strains might suffer from a temperature increase, hampering their evolutionary success. Temperature amplified the positive effect of increasing pCO2 on organic carbon production, while modulating the response of calcification rates, indicating that the response to increasing pCO2 must be taken with caution depending on the temperature range studied. Sinking rates were positively correlated with temperature, whereas pCO2 did not have any effect. The combined effect of carbonate chemistry and temperature on the E. huxleyi ratio between particulate inorganic carbon and particulate organic carbon (PIC/POC) might also lower the sinking rate of aggregates. In conclusion, in a warmer and more acidified ocean, individual coccolithophore cells might sink faster, while aggregates might sink slower. |
format |
Dataset |
author |
Milner, Sara Langer, Gerald Grelaud, Michaël Ziveri, Patrizia |
author_facet |
Milner, Sara Langer, Gerald Grelaud, Michaël Ziveri, Patrizia |
author_sort |
Milner, Sara |
title |
Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
title_short |
Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
title_full |
Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
title_fullStr |
Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
title_full_unstemmed |
Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking |
title_sort |
ocean warming modulates the effects of acidification on emiliania huxleyi calcification and sinking |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.869470 https://doi.org/10.1594/PANGAEA.869470 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Milner, Sara; Langer, Gerald; Grelaud, Michaël; Ziveri, Patrizia (2016): Ocean warming modulates the effects of acidification on Emiliania huxleyi calcification and sinking. Limnology and Oceanography, 61(4), 1322-1336, https://doi.org/10.1002/lno.10292 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.869470 https://doi.org/10.1594/PANGAEA.869470 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.86947010.1002/lno.10292 |
_version_ |
1810469734710247424 |