Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability
We investigated the responses of the ecologically dominant Antarctic phytoplankton species Phaeocystis antarctica (a prymnesiophyte) and Fragilariopsis cylindrus (a diatom) to a clustered matrix of three global change variables (CO2, mixed-layer depth, and temperature) under both iron (Fe)-replete a...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.840328 2024-04-28T07:58:19+00:00 Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability Xu, Kai Fu, Feixue Hutchins, David A 2014 text/tab-separated-values, 32742 data points https://doi.pangaea.de/10.1594/PANGAEA.840328 https://doi.org/10.1594/PANGAEA.840328 en eng PANGAEA Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.840328 https://doi.org/10.1594/PANGAEA.840328 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Xu, Kai; Fu, Feixue; Hutchins, David A (2014): Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability. Limnology and Oceanography, 59(6), 1919-1931, https://doi.org/10.4319/lo.2014.59.6.1919 Abundance standard deviation Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biogenic silica production Biogenic silica production 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 organic particulate Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell counts percent of total Cell density Cell density per colony Chlorophyll a Chlorophyll a per cell Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.84032810.4319/lo.2014.59.6.1919 2024-04-09T23:35:28Z We investigated the responses of the ecologically dominant Antarctic phytoplankton species Phaeocystis antarctica (a prymnesiophyte) and Fragilariopsis cylindrus (a diatom) to a clustered matrix of three global change variables (CO2, mixed-layer depth, and temperature) under both iron (Fe)-replete and Fe-limited conditions based roughly on the Intergovernmental Panel on Climate Change (IPCC) A2 scenario: (1) Current conditions, 39 Pa (380 ppmv) CO2, 50 µmol photons/m**2/s light, and 2°C; (2) Year 2060, 61 Pa (600 ppmv) CO2, 100 µmol photons/m**2/s light, and 4°C; (3) Year 2100, 81 Pa (800 ppmv) CO2, 150 µmol photons/m**2/s light, and 6°C. The combined interactive effects of these global change variables and changing Fe availability on growth, primary production, and cell morphology are species specific. A competition experiment suggested that future conditions could lead to a shift away from P. antarctica and toward diatoms such as F. cylindrus. Along with decreases in diatom cell size and shifts from prymnesiophyte colonies to single cells under the future scenario, this could potentially lead to decreased carbon export to the deep ocean. Fe : C uptake ratios of both species increased under future conditions, suggesting phytoplankton of the Southern Ocean will increase their Fe requirements relative to carbon fixation. The interactive effects of Fe, light, CO2, and temperature on Antarctic phytoplankton need to be considered when predicting the future responses of biology and biogeochemistry in this region. Dataset Antarc* Antarctic Antarctica Ocean acidification Southern Ocean 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 |
Abundance standard deviation Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biogenic silica production Biogenic silica production 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 organic particulate Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell counts percent of total Cell density Cell density per colony Chlorophyll a Chlorophyll a per cell |
spellingShingle |
Abundance standard deviation Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biogenic silica production Biogenic silica production 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 organic particulate Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell counts percent of total Cell density Cell density per colony Chlorophyll a Chlorophyll a per cell Xu, Kai Fu, Feixue Hutchins, David A Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
topic_facet |
Abundance standard deviation Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Biogenic silica per cell Biogenic silica production Biogenic silica production 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 organic particulate Carbon/Nitrogen ratio Carbon/Phosphorus ratio Carbonate ion Carbonate system computation flag Carbon dioxide Cell biovolume Cell counts percent of total Cell density Cell density per colony Chlorophyll a Chlorophyll a per cell |
description |
We investigated the responses of the ecologically dominant Antarctic phytoplankton species Phaeocystis antarctica (a prymnesiophyte) and Fragilariopsis cylindrus (a diatom) to a clustered matrix of three global change variables (CO2, mixed-layer depth, and temperature) under both iron (Fe)-replete and Fe-limited conditions based roughly on the Intergovernmental Panel on Climate Change (IPCC) A2 scenario: (1) Current conditions, 39 Pa (380 ppmv) CO2, 50 µmol photons/m**2/s light, and 2°C; (2) Year 2060, 61 Pa (600 ppmv) CO2, 100 µmol photons/m**2/s light, and 4°C; (3) Year 2100, 81 Pa (800 ppmv) CO2, 150 µmol photons/m**2/s light, and 6°C. The combined interactive effects of these global change variables and changing Fe availability on growth, primary production, and cell morphology are species specific. A competition experiment suggested that future conditions could lead to a shift away from P. antarctica and toward diatoms such as F. cylindrus. Along with decreases in diatom cell size and shifts from prymnesiophyte colonies to single cells under the future scenario, this could potentially lead to decreased carbon export to the deep ocean. Fe : C uptake ratios of both species increased under future conditions, suggesting phytoplankton of the Southern Ocean will increase their Fe requirements relative to carbon fixation. The interactive effects of Fe, light, CO2, and temperature on Antarctic phytoplankton need to be considered when predicting the future responses of biology and biogeochemistry in this region. |
format |
Dataset |
author |
Xu, Kai Fu, Feixue Hutchins, David A |
author_facet |
Xu, Kai Fu, Feixue Hutchins, David A |
author_sort |
Xu, Kai |
title |
Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
title_short |
Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
title_full |
Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
title_fullStr |
Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
title_full_unstemmed |
Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
title_sort |
comparative responses of two dominant antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.840328 https://doi.org/10.1594/PANGAEA.840328 |
genre |
Antarc* Antarctic Antarctica Ocean acidification Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ocean acidification Southern Ocean |
op_source |
Supplement to: Xu, Kai; Fu, Feixue; Hutchins, David A (2014): Comparative responses of two dominant Antarctic phytoplankton taxa to interactions between ocean acidification, warming, irradiance, and iron availability. Limnology and Oceanography, 59(6), 1919-1931, https://doi.org/10.4319/lo.2014.59.6.1919 |
op_relation |
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.840328 https://doi.org/10.1594/PANGAEA.840328 |
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.84032810.4319/lo.2014.59.6.1919 |
_version_ |
1797568854387326976 |