Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice
Increased anthropogenic CO2 emissions are causing changes to oceanic pH and CO2 concentrations that will impact many marine organisms, including microalgae. Phytoplankton taxa have shown mixed responses to these changes with some doing well while others have been adversely affected. Here, the photos...
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Language: | English |
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PANGAEA
2016
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.933802 https://doi.org/10.1594/PANGAEA.933802 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933802 |
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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 Antarctic Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chlorophyll a Comment Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Incubation duration Laboratory experiment Light saturation Maximal electron transport rate relative Maximum quantum yield of photosystem II OA-ICC Ocean Acidification International Coordination Centre Open ocean Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Photosynthetic quantum efficiency Polar Primary production/Photosynthesis Salinity SIPEX-2_station__4 SIPEX-2_station__7 SIPEX-2_station__8 Station label Temperature water Treatment Type |
spellingShingle |
Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chlorophyll a Comment Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Incubation duration Laboratory experiment Light saturation Maximal electron transport rate relative Maximum quantum yield of photosystem II OA-ICC Ocean Acidification International Coordination Centre Open ocean Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Photosynthetic quantum efficiency Polar Primary production/Photosynthesis Salinity SIPEX-2_station__4 SIPEX-2_station__7 SIPEX-2_station__8 Station label Temperature water Treatment Type Coad, Thomas McMinn, Andrew Nomura, Daiki Martin, Andrew Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
topic_facet |
Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chlorophyll a Comment Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Incubation duration Laboratory experiment Light saturation Maximal electron transport rate relative Maximum quantum yield of photosystem II OA-ICC Ocean Acidification International Coordination Centre Open ocean Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Photosynthetic quantum efficiency Polar Primary production/Photosynthesis Salinity SIPEX-2_station__4 SIPEX-2_station__7 SIPEX-2_station__8 Station label Temperature water Treatment Type |
description |
Increased anthropogenic CO2 emissions are causing changes to oceanic pH and CO2 concentrations that will impact many marine organisms, including microalgae. Phytoplankton taxa have shown mixed responses to these changes with some doing well while others have been adversely affected. Here, the photosynthetic response of sea-ice algal communities from Antarctic pack ice (brine and infiltration microbial communities) to a range of CO2 concentrations (400 ppm to 11,000 ppm in brine algae experiments, 400 ppm to 20,000 ppm in the infiltration ice algae experiment) was investigated. Incubations were conducted as part of the Sea-Ice Physics and Ecosystem Experiment II (SIPEX-2) voyage, in the austral spring (September–November), 2012. In the brine incubations, maximum quantum yield (Fv/Fm) and relative electron transfer rate (rETRmax) were highest at ambient and 0.049% (experiment 1) and 0.19% (experiment 2) CO2 concentrations, although, Fv/Fm was consistently between 0.53±0.10–0.68±0.01 across all treatments in both experiments. Highest rETRmax was exhibited by brine cultures exposed to ambient CO2 concentrations (60.15). In a third experiment infiltration ice algal communities were allowed to melt into seawater modified to simulate the changed pH and CO2 concentrations of future springtime ice-edge conditions. Ambient and 0.1% CO2 treatments had the highest growth rates and Fv/Fm values but only the highest CO2 concentration produced a significantly lower rETRmax. These experiments, conducted on natural Antarctic sea-ice algal communities, indicate a strong level of tolerance to elevated CO2 concentrations and suggest that these communities might not be adversely affected by predicted changes in CO2 concentration over the next century. |
format |
Dataset |
author |
Coad, Thomas McMinn, Andrew Nomura, Daiki Martin, Andrew |
author_facet |
Coad, Thomas McMinn, Andrew Nomura, Daiki Martin, Andrew |
author_sort |
Coad, Thomas |
title |
Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
title_short |
Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
title_full |
Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
title_fullStr |
Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
title_full_unstemmed |
Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice |
title_sort |
seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in antarctic pack ice |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.933802 https://doi.org/10.1594/PANGAEA.933802 |
op_coverage |
MEDIAN LATITUDE: -65.019080 * MEDIAN LONGITUDE: 118.899293 * SOUTH-BOUND LATITUDE: -65.256320 * WEST-BOUND LONGITUDE: 115.982500 * NORTH-BOUND LATITUDE: -64.720920 * EAST-BOUND LONGITUDE: 121.667380 * DATE/TIME START: 2012-09-01T00:00:00 * DATE/TIME END: 2012-11-30T00:00:00 |
long_lat |
ENVELOPE(115.982500,121.667380,-64.720920,-65.256320) |
geographic |
Antarctic Austral |
geographic_facet |
Antarctic Austral |
genre |
Antarc* Antarctic ice algae Ocean acidification Sea ice |
genre_facet |
Antarc* Antarctic ice algae Ocean acidification Sea ice |
op_relation |
Coad, Thomas; McMinn, Andrew; Nomura, Daiki; Martin, Andrew (2016): Effect of elevated CO 2 concentration on microalgal communities in Antarctic pack ice. Deep Sea Research Part II: Topical Studies in Oceanography, 131, 160-169, https://doi.org/10.1016/j.dsr2.2016.01.005 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html https://doi.pangaea.de/10.1594/PANGAEA.933802 https://doi.org/10.1594/PANGAEA.933802 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.933802 https://doi.org/10.1016/j.dsr2.2016.01.005 |
_version_ |
1766264057015304192 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.933802 2023-05-15T13:56:33+02:00 Seawater carbonate chemistry and maximum quantum yield and relative electron transfer rate of microalgal communities in Antarctic pack ice Coad, Thomas McMinn, Andrew Nomura, Daiki Martin, Andrew MEDIAN LATITUDE: -65.019080 * MEDIAN LONGITUDE: 118.899293 * SOUTH-BOUND LATITUDE: -65.256320 * WEST-BOUND LONGITUDE: 115.982500 * NORTH-BOUND LATITUDE: -64.720920 * EAST-BOUND LONGITUDE: 121.667380 * DATE/TIME START: 2012-09-01T00:00:00 * DATE/TIME END: 2012-11-30T00:00:00 2016-07-20 text/tab-separated-values, 3631 data points https://doi.pangaea.de/10.1594/PANGAEA.933802 https://doi.org/10.1594/PANGAEA.933802 en eng PANGAEA Coad, Thomas; McMinn, Andrew; Nomura, Daiki; Martin, Andrew (2016): Effect of elevated CO 2 concentration on microalgal communities in Antarctic pack ice. Deep Sea Research Part II: Topical Studies in Oceanography, 131, 160-169, https://doi.org/10.1016/j.dsr2.2016.01.005 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html https://doi.pangaea.de/10.1594/PANGAEA.933802 https://doi.org/10.1594/PANGAEA.933802 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Alkalinity total Antarctic Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chlorophyll a Comment Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Incubation duration Laboratory experiment Light saturation Maximal electron transport rate relative Maximum quantum yield of photosystem II OA-ICC Ocean Acidification International Coordination Centre Open ocean Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Photosynthetic quantum efficiency Polar Primary production/Photosynthesis Salinity SIPEX-2_station__4 SIPEX-2_station__7 SIPEX-2_station__8 Station label Temperature water Treatment Type Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.933802 https://doi.org/10.1016/j.dsr2.2016.01.005 2023-01-20T09:15:08Z Increased anthropogenic CO2 emissions are causing changes to oceanic pH and CO2 concentrations that will impact many marine organisms, including microalgae. Phytoplankton taxa have shown mixed responses to these changes with some doing well while others have been adversely affected. Here, the photosynthetic response of sea-ice algal communities from Antarctic pack ice (brine and infiltration microbial communities) to a range of CO2 concentrations (400 ppm to 11,000 ppm in brine algae experiments, 400 ppm to 20,000 ppm in the infiltration ice algae experiment) was investigated. Incubations were conducted as part of the Sea-Ice Physics and Ecosystem Experiment II (SIPEX-2) voyage, in the austral spring (September–November), 2012. In the brine incubations, maximum quantum yield (Fv/Fm) and relative electron transfer rate (rETRmax) were highest at ambient and 0.049% (experiment 1) and 0.19% (experiment 2) CO2 concentrations, although, Fv/Fm was consistently between 0.53±0.10–0.68±0.01 across all treatments in both experiments. Highest rETRmax was exhibited by brine cultures exposed to ambient CO2 concentrations (60.15). In a third experiment infiltration ice algal communities were allowed to melt into seawater modified to simulate the changed pH and CO2 concentrations of future springtime ice-edge conditions. Ambient and 0.1% CO2 treatments had the highest growth rates and Fv/Fm values but only the highest CO2 concentration produced a significantly lower rETRmax. These experiments, conducted on natural Antarctic sea-ice algal communities, indicate a strong level of tolerance to elevated CO2 concentrations and suggest that these communities might not be adversely affected by predicted changes in CO2 concentration over the next century. Dataset Antarc* Antarctic ice algae Ocean acidification Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Austral ENVELOPE(115.982500,121.667380,-64.720920,-65.256320) |