Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf
The oceans teem with heterotrophic bacterioplankton that play an appreciable role in the uptake of dissolved organic carbon (DOC) derived from phytoplankton net primary production (NPP). As such, bacterioplankton carbon demand (BCD), or gross heterotrophic production, represents a major carbon pathw...
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ftfrontimediafig:oai:figshare.com:article/14804262 2023-05-15T17:34:38+02:00 Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf Nicholas Baetge Michael J. Behrenfeld James Fox Kimberly H. Halsey Kristina D. A. Mojica Anai Novoa Brandon M. Stephens Craig A. Carlson 2021-06-18T04:24:17Z https://doi.org/10.3389/fmicb.2021.669883.s001 https://figshare.com/articles/dataset/Data_Sheet_1_The_Seasonal_Flux_and_Fate_of_Dissolved_Organic_Carbon_Through_Bacterioplankton_in_the_Western_North_Atlantic_pdf/14804262 unknown doi:10.3389/fmicb.2021.669883.s001 https://figshare.com/articles/dataset/Data_Sheet_1_The_Seasonal_Flux_and_Fate_of_Dissolved_Organic_Carbon_Through_Bacterioplankton_in_the_Western_North_Atlantic_pdf/14804262 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology bioavailability bacterioplankton carbon demand dissolved organic carbon NAAMES biological carbon pump Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmicb.2021.669883.s001 2021-06-23T23:00:27Z The oceans teem with heterotrophic bacterioplankton that play an appreciable role in the uptake of dissolved organic carbon (DOC) derived from phytoplankton net primary production (NPP). As such, bacterioplankton carbon demand (BCD), or gross heterotrophic production, represents a major carbon pathway that influences the seasonal accumulation of DOC in the surface ocean and, subsequently, the potential vertical or horizontal export of seasonally accumulated DOC. Here, we examine the contributions of bacterioplankton and DOM to ecological and biogeochemical carbon flow pathways, including those of the microbial loop and the biological carbon pump, in the Western North Atlantic Ocean (∼39–54°N along ∼40°W) over a composite annual phytoplankton bloom cycle. Combining field observations with data collected from corresponding DOC remineralization experiments, we estimate the efficiency at which bacterioplankton utilize DOC, demonstrate seasonality in the fraction of NPP that supports BCD, and provide evidence for shifts in the bioavailability and persistence of the seasonally accumulated DOC. Our results indicate that while the portion of DOC flux through bacterioplankton relative to NPP increased as seasons transitioned from high to low productivity, there was a fraction of the DOM production that accumulated and persisted. This persistent DOM is potentially an important pool of organic carbon available for export to the deep ocean via convective mixing, thus representing an important export term of the biological carbon pump. Dataset North Atlantic Frontiers: Figshare |
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Open Polar |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology bioavailability bacterioplankton carbon demand dissolved organic carbon NAAMES biological carbon pump |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology bioavailability bacterioplankton carbon demand dissolved organic carbon NAAMES biological carbon pump Nicholas Baetge Michael J. Behrenfeld James Fox Kimberly H. Halsey Kristina D. A. Mojica Anai Novoa Brandon M. Stephens Craig A. Carlson Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology bioavailability bacterioplankton carbon demand dissolved organic carbon NAAMES biological carbon pump |
description |
The oceans teem with heterotrophic bacterioplankton that play an appreciable role in the uptake of dissolved organic carbon (DOC) derived from phytoplankton net primary production (NPP). As such, bacterioplankton carbon demand (BCD), or gross heterotrophic production, represents a major carbon pathway that influences the seasonal accumulation of DOC in the surface ocean and, subsequently, the potential vertical or horizontal export of seasonally accumulated DOC. Here, we examine the contributions of bacterioplankton and DOM to ecological and biogeochemical carbon flow pathways, including those of the microbial loop and the biological carbon pump, in the Western North Atlantic Ocean (∼39–54°N along ∼40°W) over a composite annual phytoplankton bloom cycle. Combining field observations with data collected from corresponding DOC remineralization experiments, we estimate the efficiency at which bacterioplankton utilize DOC, demonstrate seasonality in the fraction of NPP that supports BCD, and provide evidence for shifts in the bioavailability and persistence of the seasonally accumulated DOC. Our results indicate that while the portion of DOC flux through bacterioplankton relative to NPP increased as seasons transitioned from high to low productivity, there was a fraction of the DOM production that accumulated and persisted. This persistent DOM is potentially an important pool of organic carbon available for export to the deep ocean via convective mixing, thus representing an important export term of the biological carbon pump. |
format |
Dataset |
author |
Nicholas Baetge Michael J. Behrenfeld James Fox Kimberly H. Halsey Kristina D. A. Mojica Anai Novoa Brandon M. Stephens Craig A. Carlson |
author_facet |
Nicholas Baetge Michael J. Behrenfeld James Fox Kimberly H. Halsey Kristina D. A. Mojica Anai Novoa Brandon M. Stephens Craig A. Carlson |
author_sort |
Nicholas Baetge |
title |
Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
title_short |
Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
title_full |
Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
title_fullStr |
Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
title_full_unstemmed |
Data_Sheet_1_The Seasonal Flux and Fate of Dissolved Organic Carbon Through Bacterioplankton in the Western North Atlantic.pdf |
title_sort |
data_sheet_1_the seasonal flux and fate of dissolved organic carbon through bacterioplankton in the western north atlantic.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmicb.2021.669883.s001 https://figshare.com/articles/dataset/Data_Sheet_1_The_Seasonal_Flux_and_Fate_of_Dissolved_Organic_Carbon_Through_Bacterioplankton_in_the_Western_North_Atlantic_pdf/14804262 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.3389/fmicb.2021.669883.s001 https://figshare.com/articles/dataset/Data_Sheet_1_The_Seasonal_Flux_and_Fate_of_Dissolved_Organic_Carbon_Through_Bacterioplankton_in_the_Western_North_Atlantic_pdf/14804262 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2021.669883.s001 |
_version_ |
1766133524949106688 |