Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions
The vertical distribution of phytoplankton is of fundamental importance in the structure, dynamic, and biogeochemical pathways in marine ecosystems. Nevertheless, what are the main factors determining this distribution remains as an open question. Here, we evaluated the relative influence of environ...
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PANGAEA
2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.949389 https://doi.org/10.1594/PANGAEA.949389 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.949389 |
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openpolar |
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 Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) DATE/TIME Eastern_tropical_south_Pacific EXP Experiment Fluorescence Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Haptophyta Imantonia sp. Laboratory experiment OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Primary production/Photosynthesis Replicate Salinity Single species South Pacific Temperate Temperature water Time point descriptive Treatment Type |
spellingShingle |
Alkalinity total 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 Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) DATE/TIME Eastern_tropical_south_Pacific EXP Experiment Fluorescence Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Haptophyta Imantonia sp. Laboratory experiment OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Primary production/Photosynthesis Replicate Salinity Single species South Pacific Temperate Temperature water Time point descriptive Treatment Type Piscoya, Edson von Dassow, Peter Aldunate, Montserrat Vargas, Cristian A Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
topic_facet |
Alkalinity total 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 Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) DATE/TIME Eastern_tropical_south_Pacific EXP Experiment Fluorescence Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Haptophyta Imantonia sp. Laboratory experiment OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Primary production/Photosynthesis Replicate Salinity Single species South Pacific Temperate Temperature water Time point descriptive Treatment Type |
description |
The vertical distribution of phytoplankton is of fundamental importance in the structure, dynamic, and biogeochemical pathways in marine ecosystems. Nevertheless, what are the main factors determining this distribution remains as an open question. Here, we evaluated the relative influence of environmental factors that might control the coexistence and vertical distribution of pico-nanoplankton associated with the OMZ off northern Chile. Our results showed that in the upper layer Synechococcus-like cells were numerically important at all sampling stations. Pico-nano eukaryotes and phototrophic nanoflagellates (PNF) also showed high abundances in the upper layer decreasing in abundance down to the upper oxycline, while only Prochlorococcus showed high abundances under oxycline and within the oxygen-depleted layer. Statistical analyses evidenced that temperature, oxygen, and carbonate chemistry parameters (pH and dissolved inorganic carbon, DIC) influenced significantly the vertical distribution of phototrophic pico-nanoplankton. Additionally, we experimentally-evaluated the combined effect of low pH/low O2 conditions on a nanophytoplankton species, the haptophyte Imantonia sp. Under control conditions (pH = 8.1; O2 = 287.5 μM, light = 169.6 μEm−2s−1), Imantonia sp. in vivo fluorescence increased over fifty times, inducing supersaturated O2 conditions (900 μM) and an increasing pH (8.5), whereas upon an experimental treatment mimicking OMZ conditions (pH = 7.5; O2 = 55.6 μM; light = 169.6 μEm−2s−1), in vivo fluorescence declined dramatically, suggesting that Imantonia sp. did not survive. Although preliminary, our study provides evidence about the role of low pH/low O2 conditions on the vertical distribution of nanophytoplankton, which deserve future attention through both fieldwork and more extended experimental experiences. |
format |
Dataset |
author |
Piscoya, Edson von Dassow, Peter Aldunate, Montserrat Vargas, Cristian A |
author_facet |
Piscoya, Edson von Dassow, Peter Aldunate, Montserrat Vargas, Cristian A |
author_sort |
Piscoya, Edson |
title |
Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
title_short |
Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
title_full |
Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
title_fullStr |
Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
title_full_unstemmed |
Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions |
title_sort |
seawater carbonate chemistry and response of an autotrophic nanoflagellates to low ph/low o2 conditions |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.949389 https://doi.org/10.1594/PANGAEA.949389 |
op_coverage |
LATITUDE: -30.483000 * LONGITUDE: -72.520000 * DATE/TIME START: 2020-01-21T00:00:00 * DATE/TIME END: 2020-01-27T00:00:00 |
long_lat |
ENVELOPE(-72.520000,-72.520000,-30.483000,-30.483000) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Piscoya, Edson; von Dassow, Peter; Aldunate, Montserrat; Vargas, Cristian A (2022): Physical-chemical factors influencing the vertical distribution of phototrophic pico-nanoplankton in the Oxygen Minimum Zone (OMZ) off Northern Chile: The relative influence of low pH/low O2 conditions. Marine Environmental Research, 180, 105710, https://doi.org/10.1016/j.marenvres.2022.105710 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.949389 https://doi.org/10.1594/PANGAEA.949389 |
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.94938910.1016/j.marenvres.2022.105710 |
_version_ |
1810469845013102592 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.949389 2024-09-15T18:28:28+00:00 Seawater carbonate chemistry and response of an autotrophic nanoflagellates to low pH/low O2 conditions Piscoya, Edson von Dassow, Peter Aldunate, Montserrat Vargas, Cristian A LATITUDE: -30.483000 * LONGITUDE: -72.520000 * DATE/TIME START: 2020-01-21T00:00:00 * DATE/TIME END: 2020-01-27T00:00:00 2022 text/tab-separated-values, 336 data points https://doi.pangaea.de/10.1594/PANGAEA.949389 https://doi.org/10.1594/PANGAEA.949389 en eng PANGAEA Piscoya, Edson; von Dassow, Peter; Aldunate, Montserrat; Vargas, Cristian A (2022): Physical-chemical factors influencing the vertical distribution of phototrophic pico-nanoplankton in the Oxygen Minimum Zone (OMZ) off Northern Chile: The relative influence of low pH/low O2 conditions. Marine Environmental Research, 180, 105710, https://doi.org/10.1016/j.marenvres.2022.105710 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.949389 https://doi.org/10.1594/PANGAEA.949389 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Alkalinity total 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 Chromista Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) DATE/TIME Eastern_tropical_south_Pacific EXP Experiment Fluorescence Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Haptophyta Imantonia sp. Laboratory experiment OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Primary production/Photosynthesis Replicate Salinity Single species South Pacific Temperate Temperature water Time point descriptive Treatment Type dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.94938910.1016/j.marenvres.2022.105710 2024-07-24T02:31:34Z The vertical distribution of phytoplankton is of fundamental importance in the structure, dynamic, and biogeochemical pathways in marine ecosystems. Nevertheless, what are the main factors determining this distribution remains as an open question. Here, we evaluated the relative influence of environmental factors that might control the coexistence and vertical distribution of pico-nanoplankton associated with the OMZ off northern Chile. Our results showed that in the upper layer Synechococcus-like cells were numerically important at all sampling stations. Pico-nano eukaryotes and phototrophic nanoflagellates (PNF) also showed high abundances in the upper layer decreasing in abundance down to the upper oxycline, while only Prochlorococcus showed high abundances under oxycline and within the oxygen-depleted layer. Statistical analyses evidenced that temperature, oxygen, and carbonate chemistry parameters (pH and dissolved inorganic carbon, DIC) influenced significantly the vertical distribution of phototrophic pico-nanoplankton. Additionally, we experimentally-evaluated the combined effect of low pH/low O2 conditions on a nanophytoplankton species, the haptophyte Imantonia sp. Under control conditions (pH = 8.1; O2 = 287.5 μM, light = 169.6 μEm−2s−1), Imantonia sp. in vivo fluorescence increased over fifty times, inducing supersaturated O2 conditions (900 μM) and an increasing pH (8.5), whereas upon an experimental treatment mimicking OMZ conditions (pH = 7.5; O2 = 55.6 μM; light = 169.6 μEm−2s−1), in vivo fluorescence declined dramatically, suggesting that Imantonia sp. did not survive. Although preliminary, our study provides evidence about the role of low pH/low O2 conditions on the vertical distribution of nanophytoplankton, which deserve future attention through both fieldwork and more extended experimental experiences. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-72.520000,-72.520000,-30.483000,-30.483000) |