Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates
High-latitude oceans have been identified as particularly vulnerable to ocean acidification if anthropogenic CO2 emissions continue. Marine microbes are an essential part of the marine food web and are a critical link in biogeochemical processes in the ocean, such as the cycling of nutrients and car...
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Language: | English |
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PANGAEA
2020
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.926447 https://doi.org/10.1594/PANGAEA.926447 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.926447 |
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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 Ammonium Antarctic Aragonite saturation state Bicarbonate ion Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cell density standard error Chlorophyll a Community composition and diversity Containers and aquaria (20-1000 L or < 1 m**2) Date Duration number of days Entire community EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Light attenuation vertical Nanoflagellates heterotrophic Nanophytoplankton Nitrogen oxide OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phosphate Picophytoplankton Polar Position Prokaryotes Prydz_Bay_OA Replicate Salinity Silicate |
spellingShingle |
Alkalinity total Ammonium Antarctic Aragonite saturation state Bicarbonate ion Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cell density standard error Chlorophyll a Community composition and diversity Containers and aquaria (20-1000 L or < 1 m**2) Date Duration number of days Entire community EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Light attenuation vertical Nanoflagellates heterotrophic Nanophytoplankton Nitrogen oxide OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phosphate Picophytoplankton Polar Position Prokaryotes Prydz_Bay_OA Replicate Salinity Silicate Deppeler, Stacy Schulz, Kai Georg Hancock, Alyce M Pascoe, Penelope McKinlay, John Davidson, Andrew T Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
topic_facet |
Alkalinity total Ammonium Antarctic Aragonite saturation state Bicarbonate ion Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cell density standard error Chlorophyll a Community composition and diversity Containers and aquaria (20-1000 L or < 1 m**2) Date Duration number of days Entire community EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Light attenuation vertical Nanoflagellates heterotrophic Nanophytoplankton Nitrogen oxide OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phosphate Picophytoplankton Polar Position Prokaryotes Prydz_Bay_OA Replicate Salinity Silicate |
description |
High-latitude oceans have been identified as particularly vulnerable to ocean acidification if anthropogenic CO2 emissions continue. Marine microbes are an essential part of the marine food web and are a critical link in biogeochemical processes in the ocean, such as the cycling of nutrients and carbon. Despite this, the response of Antarctic marine microbial communities to ocean acidification is poorly understood. We investigated the effect of increasing fCO2 on the growth of heterotrophic nanoflagellates (HNFs), nano- and picophytoplankton, and prokaryotes (heterotrophic Bacteria and Archaea) in a natural coastal Antarctic marine microbial community from Prydz Bay, East Antarctica. At CO2 levels ≥634 µatm, HNF abundance was reduced, coinciding with increased abundance of picophytoplankton and prokaryotes. This increase in picophytoplankton and prokaryote abundance was likely due to a reduction in top-down control of grazing HNFs. Nanophytoplankton abundance was elevated in the 634 µatm treatment, suggesting that moderate increases in CO2 may stimulate growth. The taxonomic and morphological differences in CO2 tolerance we observed are likely to favour dominance of microbial communities by prokaryotes, nanophytoplankton, and picophytoplankton. Such changes in predator–prey interactions with ocean acidification could have a significant effect on the food web and biogeochemistry in the Southern Ocean, intensifying organic-matter recycling in surface waters; reducing vertical carbon flux; and reducing the quality, quantity, and availability of food for higher trophic levels. |
format |
Dataset |
author |
Deppeler, Stacy Schulz, Kai Georg Hancock, Alyce M Pascoe, Penelope McKinlay, John Davidson, Andrew T |
author_facet |
Deppeler, Stacy Schulz, Kai Georg Hancock, Alyce M Pascoe, Penelope McKinlay, John Davidson, Andrew T |
author_sort |
Deppeler, Stacy |
title |
Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
title_short |
Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
title_full |
Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
title_fullStr |
Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
title_full_unstemmed |
Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates |
title_sort |
seawater carbonate chemistry and growth and grazing impact of antarctic heterotrophic nanoflagellates |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.926447 https://doi.org/10.1594/PANGAEA.926447 |
op_coverage |
LATITUDE: -68.583330 * LONGITUDE: 77.966670 * DATE/TIME START: 2014-11-19T00:00:00 * DATE/TIME END: 2014-11-19T00:00:00 |
long_lat |
ENVELOPE(77.966670,77.966670,-68.583330,-68.583330) |
genre |
Antarc* Antarctic Antarctica East Antarctica Ocean acidification Prydz Bay Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ocean acidification Prydz Bay Southern Ocean |
op_relation |
Deppeler, Stacy; Schulz, Kai Georg; Hancock, Alyce M; Pascoe, Penelope; McKinlay, John; Davidson, Andrew T (2020): Ocean acidification reduces growth and grazing impact of Antarctic heterotrophic nanoflagellates. Biogeosciences, 17(16), 4153-4171, https://doi.org/10.5194/bg-17-4153-2020 Deppeler, Stacy; Davidson, Andrew T; Schulz, Kai (2017): Environmental data for Davis 14/15 ocean acidification minicosm experiment [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/599a7dfe9470a Deppeler, Stacy; Schulz, Kai; Hancock, Alyce M; Pascoe, Penelope; McKinlay, John; Davidson, Andrew T (2019): Data for manuscript 'Ocean acidification reduces growth and grazing of Antarctic heterotrophic nanoflagellates' [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/5b234e4bb9313 Hancock, Alyce M; Davidson, Andrew T; McKinlay, John; McMinn, Andrew; Schulz, Kai; van den Enden, Rick (2018): Ocean acidification changes the structure of an Antarctic coastal protistan community [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/592b83a5c7506 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2020): seacarb: seawater carbonate chemistry with R. R package version 3.2.14. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.926447 https://doi.org/10.1594/PANGAEA.926447 |
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.92644710.5194/bg-17-4153-202010.4225/15/599a7dfe9470a10.4225/15/5b234e4bb931310.4225/15/592b83a5c7506 |
_version_ |
1810487506969296896 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.926447 2024-09-15T17:41:21+00:00 Seawater carbonate chemistry and growth and grazing impact of Antarctic heterotrophic nanoflagellates Deppeler, Stacy Schulz, Kai Georg Hancock, Alyce M Pascoe, Penelope McKinlay, John Davidson, Andrew T LATITUDE: -68.583330 * LONGITUDE: 77.966670 * DATE/TIME START: 2014-11-19T00:00:00 * DATE/TIME END: 2014-11-19T00:00:00 2020 text/tab-separated-values, 53927 data points https://doi.pangaea.de/10.1594/PANGAEA.926447 https://doi.org/10.1594/PANGAEA.926447 en eng PANGAEA Deppeler, Stacy; Schulz, Kai Georg; Hancock, Alyce M; Pascoe, Penelope; McKinlay, John; Davidson, Andrew T (2020): Ocean acidification reduces growth and grazing impact of Antarctic heterotrophic nanoflagellates. Biogeosciences, 17(16), 4153-4171, https://doi.org/10.5194/bg-17-4153-2020 Deppeler, Stacy; Davidson, Andrew T; Schulz, Kai (2017): Environmental data for Davis 14/15 ocean acidification minicosm experiment [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/599a7dfe9470a Deppeler, Stacy; Schulz, Kai; Hancock, Alyce M; Pascoe, Penelope; McKinlay, John; Davidson, Andrew T (2019): Data for manuscript 'Ocean acidification reduces growth and grazing of Antarctic heterotrophic nanoflagellates' [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/5b234e4bb9313 Hancock, Alyce M; Davidson, Andrew T; McKinlay, John; McMinn, Andrew; Schulz, Kai; van den Enden, Rick (2018): Ocean acidification changes the structure of an Antarctic coastal protistan community [dataset]. Australian Antarctic Data Centre, https://doi.org/10.4225/15/592b83a5c7506 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2020): seacarb: seawater carbonate chemistry with R. R package version 3.2.14. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.926447 https://doi.org/10.1594/PANGAEA.926447 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Alkalinity total Ammonium Antarctic Aragonite saturation state Bicarbonate ion Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cell density standard error Chlorophyll a Community composition and diversity Containers and aquaria (20-1000 L or < 1 m**2) Date Duration number of days Entire community EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Light attenuation vertical Nanoflagellates heterotrophic Nanophytoplankton Nitrogen oxide OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phosphate Picophytoplankton Polar Position Prokaryotes Prydz_Bay_OA Replicate Salinity Silicate dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.92644710.5194/bg-17-4153-202010.4225/15/599a7dfe9470a10.4225/15/5b234e4bb931310.4225/15/592b83a5c7506 2024-07-24T02:31:34Z High-latitude oceans have been identified as particularly vulnerable to ocean acidification if anthropogenic CO2 emissions continue. Marine microbes are an essential part of the marine food web and are a critical link in biogeochemical processes in the ocean, such as the cycling of nutrients and carbon. Despite this, the response of Antarctic marine microbial communities to ocean acidification is poorly understood. We investigated the effect of increasing fCO2 on the growth of heterotrophic nanoflagellates (HNFs), nano- and picophytoplankton, and prokaryotes (heterotrophic Bacteria and Archaea) in a natural coastal Antarctic marine microbial community from Prydz Bay, East Antarctica. At CO2 levels ≥634 µatm, HNF abundance was reduced, coinciding with increased abundance of picophytoplankton and prokaryotes. This increase in picophytoplankton and prokaryote abundance was likely due to a reduction in top-down control of grazing HNFs. Nanophytoplankton abundance was elevated in the 634 µatm treatment, suggesting that moderate increases in CO2 may stimulate growth. The taxonomic and morphological differences in CO2 tolerance we observed are likely to favour dominance of microbial communities by prokaryotes, nanophytoplankton, and picophytoplankton. Such changes in predator–prey interactions with ocean acidification could have a significant effect on the food web and biogeochemistry in the Southern Ocean, intensifying organic-matter recycling in surface waters; reducing vertical carbon flux; and reducing the quality, quantity, and availability of food for higher trophic levels. Dataset Antarc* Antarctic Antarctica East Antarctica Ocean acidification Prydz Bay Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(77.966670,77.966670,-68.583330,-68.583330) |