Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status
Iron availability in seawater, namely the concentration of dissolved inorganic iron ([Fe']), is affected by changes in pH. Such changes in the availability of iron should be taken into account when investigating the effects of ocean acidification on phytoplankton ecophysiology because iron play...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.859316 2024-09-15T18:28:26+00:00 Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status Sugie, Koji Yoshimura, T 2016 text/tab-separated-values, 1179 data points https://doi.pangaea.de/10.1594/PANGAEA.859316 https://doi.org/10.1594/PANGAEA.859316 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.859316 https://doi.org/10.1594/PANGAEA.859316 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Sugie, Koji; Yoshimura, T (2016): Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status. ICES Journal of Marine Science, 73(3), 680-692, https://doi.org/10.1093/icesjms/fsv259 Alkalinity total Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved intracellular organic particulate production per cell Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell density Chlorophyll a Chlorophyll a per cell Chlorophyll a production per cell Chromista Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Iron Laboratory experiment Laboratory strains Micro-nutrients Net nitrogen production rate dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.85931610.1093/icesjms/fsv259 2024-07-24T02:31:33Z Iron availability in seawater, namely the concentration of dissolved inorganic iron ([Fe']), is affected by changes in pH. Such changes in the availability of iron should be taken into account when investigating the effects of ocean acidification on phytoplankton ecophysiology because iron plays a key role in phytoplankton metabolism. However, changes in iron availability in response to changes in ocean acidity are difficult to quantify specifically using natural seawater because these factors change simultaneously. In the present study, the availability of iron and carbonate chemistry were manipulated individually and simultaneously in the laboratory to examine the effect of each factor on phytoplankton ecophysiology. The effects of various pCO2 conditions (390, 600, and 800 µatm) on the growth, cell size, and elemental stoichiometry (carbon [C], nitrogen [N], phosphorus [P], and silicon [Si]) of the diatom Thalassiosira weissflogii under high iron ([Fe'] = 240 pmol/l) and low iron ([Fe'] = 24 pmol/l) conditions were investigated. Cell volume decreased with increasing pCO2, whereas intracellular C, N, and P concentrations increased with increasing pCO2 only under high iron conditions. Si:C, Si:N, and Si:P ratios decreased with increasing pCO2. It reflects higher production of net C, N, and P with no corresponding change in net Si production under high pCO2 and high iron conditions. In contrast, significant linear relationships between measured parameters and pCO2 were rarely detected under low iron conditions. We conclude that the increasing CO2 levels could affect on the biogeochemical cycling of bioelements selectively under the iron-replete conditions in the coastal ecosystems. 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 Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved intracellular organic particulate production per cell Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell density Chlorophyll a Chlorophyll a per cell Chlorophyll a production per cell Chromista Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Iron Laboratory experiment Laboratory strains Micro-nutrients Net nitrogen production rate |
spellingShingle |
Alkalinity total Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved intracellular organic particulate production per cell Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell density Chlorophyll a Chlorophyll a per cell Chlorophyll a production per cell Chromista Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Iron Laboratory experiment Laboratory strains Micro-nutrients Net nitrogen production rate Sugie, Koji Yoshimura, T Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
topic_facet |
Alkalinity total Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved intracellular organic particulate production per cell Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell density Chlorophyll a Chlorophyll a per cell Chlorophyll a production per cell Chromista Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Iron Laboratory experiment Laboratory strains Micro-nutrients Net nitrogen production rate |
description |
Iron availability in seawater, namely the concentration of dissolved inorganic iron ([Fe']), is affected by changes in pH. Such changes in the availability of iron should be taken into account when investigating the effects of ocean acidification on phytoplankton ecophysiology because iron plays a key role in phytoplankton metabolism. However, changes in iron availability in response to changes in ocean acidity are difficult to quantify specifically using natural seawater because these factors change simultaneously. In the present study, the availability of iron and carbonate chemistry were manipulated individually and simultaneously in the laboratory to examine the effect of each factor on phytoplankton ecophysiology. The effects of various pCO2 conditions (390, 600, and 800 µatm) on the growth, cell size, and elemental stoichiometry (carbon [C], nitrogen [N], phosphorus [P], and silicon [Si]) of the diatom Thalassiosira weissflogii under high iron ([Fe'] = 240 pmol/l) and low iron ([Fe'] = 24 pmol/l) conditions were investigated. Cell volume decreased with increasing pCO2, whereas intracellular C, N, and P concentrations increased with increasing pCO2 only under high iron conditions. Si:C, Si:N, and Si:P ratios decreased with increasing pCO2. It reflects higher production of net C, N, and P with no corresponding change in net Si production under high pCO2 and high iron conditions. In contrast, significant linear relationships between measured parameters and pCO2 were rarely detected under low iron conditions. We conclude that the increasing CO2 levels could affect on the biogeochemical cycling of bioelements selectively under the iron-replete conditions in the coastal ecosystems. |
format |
Dataset |
author |
Sugie, Koji Yoshimura, T |
author_facet |
Sugie, Koji Yoshimura, T |
author_sort |
Sugie, Koji |
title |
Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
title_short |
Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
title_full |
Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
title_fullStr |
Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
title_full_unstemmed |
Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status |
title_sort |
effects of high co2 levels on the ecophysiology of the diatom thalassiosira weissflogii differ depending on the iron nutritional status |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.859316 https://doi.org/10.1594/PANGAEA.859316 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Sugie, Koji; Yoshimura, T (2016): Effects of high CO2 levels on the ecophysiology of the diatom Thalassiosira weissflogii differ depending on the iron nutritional status. ICES Journal of Marine Science, 73(3), 680-692, https://doi.org/10.1093/icesjms/fsv259 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.859316 https://doi.org/10.1594/PANGAEA.859316 |
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.85931610.1093/icesjms/fsv259 |
_version_ |
1810469800280850432 |