DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx
We investigated changes in heterotrophic bacterial metabolic activities and associated carbon cycles in response to a change in dominant phytoplankton communities during two contrasting environmental conditions in austral summer in the Amundsen Sea polynya (ASP), Antarctica: the closed polynya condi...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2022.872052.s001 https://figshare.com/articles/dataset/DataSheet_1_Bacterial_Metabolic_Response_to_Change_in_Phytoplankton_Communities_and_Resultant_Effects_on_Carbon_Cycles_in_the_Amundsen_Sea_Polynya_Antarctica_docx/19957565 |
id |
ftfrontimediafig:oai:figshare.com:article/19957565 |
---|---|
record_format |
openpolar |
spelling |
ftfrontimediafig:oai:figshare.com:article/19957565 2023-05-15T13:23:52+02:00 DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx Bomina Kim Sung-Han Kim Jun-Oh Min Youngju Lee Jinyoung Jung Tae-Wan Kim Jae Seong Lee Eun Jin Yang Jisoo Park SangHoon Lee Jung-Ho Hyun 2022-06-02T05:31:43Z https://doi.org/10.3389/fmars.2022.872052.s001 https://figshare.com/articles/dataset/DataSheet_1_Bacterial_Metabolic_Response_to_Change_in_Phytoplankton_Communities_and_Resultant_Effects_on_Carbon_Cycles_in_the_Amundsen_Sea_Polynya_Antarctica_docx/19957565 unknown doi:10.3389/fmars.2022.872052.s001 https://figshare.com/articles/dataset/DataSheet_1_Bacterial_Metabolic_Response_to_Change_in_Phytoplankton_Communities_and_Resultant_Effects_on_Carbon_Cycles_in_the_Amundsen_Sea_Polynya_Antarctica_docx/19957565 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bacterial production bacterial respiration phytoplankton community composition microbial loop biological pump Amundsen Sea polynya climate change Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fmars.2022.872052.s001 2022-06-08T23:09:06Z We investigated changes in heterotrophic bacterial metabolic activities and associated carbon cycles in response to a change in dominant phytoplankton communities during two contrasting environmental conditions in austral summer in the Amundsen Sea polynya (ASP), Antarctica: the closed polynya condition in 2014 (ANA04) and the open polynya condition in 2016 (ANA06). In ANA04, Phaeocystis antarctica predominated phytoplankton biomass, comprising 78% of total phytoplankton carbon biomass, whereas diatoms and Dictyocha speculum accounted for 45% and 48% of total phytoplankton carbon biomass, respectively, in ANA06. Bacterial production (BP) showed a significant positive correlation with only chlorophyll-a (Chl-a, rho = 0.66, p < 0.001) in P. antarctica-dominated ANA04, whereas there were significant positive relationships of BP with various organic carbon pools, such as chromophoric dissolved organic matter (CDOM, rho = 0.84, p < 0.001), Chl-a (rho = 0.59, p < 0.001), and dissolved organic carbon (DOC, rho = 0.51, p = 0.001), in ANA06 when diatoms and D. speculum co-dominated. These results indicate that BP depended more on DOC directly released from P. antarctica in ANA04, but was supported by DOC derived from various food web processes in the diatom-dominated system in ANA06. The BP to primary production (BP : PP) ratio was three-fold higher in P. antarctica-dominated ANA04 (BP: PP = 0.09), than in diatom- and D. speculum-co-dominated ANA06 (BP : PP = 0.03). These results suggested that the microbial loop is more significant in Phaeocystis-dominated conditions than in diatom-dominated conditions. In addition, the decreases in BP : PP ratio and bacterial respiration with increasing diatom proportion in the surface mixed layer indicated that the change from P. antarctica to diatom predominance enhanced biological carbon pump function by increasing particulate organic carbon export efficiency. Consequently, our results suggest that bacterial metabolic response to shifts in phytoplankton communities could ... Dataset Amundsen Sea Antarc* Antarctica Frontiers: Figshare Austral Amundsen Sea Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bacterial production bacterial respiration phytoplankton community composition microbial loop biological pump Amundsen Sea polynya climate change |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bacterial production bacterial respiration phytoplankton community composition microbial loop biological pump Amundsen Sea polynya climate change Bomina Kim Sung-Han Kim Jun-Oh Min Youngju Lee Jinyoung Jung Tae-Wan Kim Jae Seong Lee Eun Jin Yang Jisoo Park SangHoon Lee Jung-Ho Hyun DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bacterial production bacterial respiration phytoplankton community composition microbial loop biological pump Amundsen Sea polynya climate change |
description |
We investigated changes in heterotrophic bacterial metabolic activities and associated carbon cycles in response to a change in dominant phytoplankton communities during two contrasting environmental conditions in austral summer in the Amundsen Sea polynya (ASP), Antarctica: the closed polynya condition in 2014 (ANA04) and the open polynya condition in 2016 (ANA06). In ANA04, Phaeocystis antarctica predominated phytoplankton biomass, comprising 78% of total phytoplankton carbon biomass, whereas diatoms and Dictyocha speculum accounted for 45% and 48% of total phytoplankton carbon biomass, respectively, in ANA06. Bacterial production (BP) showed a significant positive correlation with only chlorophyll-a (Chl-a, rho = 0.66, p < 0.001) in P. antarctica-dominated ANA04, whereas there were significant positive relationships of BP with various organic carbon pools, such as chromophoric dissolved organic matter (CDOM, rho = 0.84, p < 0.001), Chl-a (rho = 0.59, p < 0.001), and dissolved organic carbon (DOC, rho = 0.51, p = 0.001), in ANA06 when diatoms and D. speculum co-dominated. These results indicate that BP depended more on DOC directly released from P. antarctica in ANA04, but was supported by DOC derived from various food web processes in the diatom-dominated system in ANA06. The BP to primary production (BP : PP) ratio was three-fold higher in P. antarctica-dominated ANA04 (BP: PP = 0.09), than in diatom- and D. speculum-co-dominated ANA06 (BP : PP = 0.03). These results suggested that the microbial loop is more significant in Phaeocystis-dominated conditions than in diatom-dominated conditions. In addition, the decreases in BP : PP ratio and bacterial respiration with increasing diatom proportion in the surface mixed layer indicated that the change from P. antarctica to diatom predominance enhanced biological carbon pump function by increasing particulate organic carbon export efficiency. Consequently, our results suggest that bacterial metabolic response to shifts in phytoplankton communities could ... |
format |
Dataset |
author |
Bomina Kim Sung-Han Kim Jun-Oh Min Youngju Lee Jinyoung Jung Tae-Wan Kim Jae Seong Lee Eun Jin Yang Jisoo Park SangHoon Lee Jung-Ho Hyun |
author_facet |
Bomina Kim Sung-Han Kim Jun-Oh Min Youngju Lee Jinyoung Jung Tae-Wan Kim Jae Seong Lee Eun Jin Yang Jisoo Park SangHoon Lee Jung-Ho Hyun |
author_sort |
Bomina Kim |
title |
DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
title_short |
DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
title_full |
DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
title_fullStr |
DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
title_full_unstemmed |
DataSheet_1_Bacterial Metabolic Response to Change in Phytoplankton Communities and Resultant Effects on Carbon Cycles in the Amundsen Sea Polynya, Antarctica.docx |
title_sort |
datasheet_1_bacterial metabolic response to change in phytoplankton communities and resultant effects on carbon cycles in the amundsen sea polynya, antarctica.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.872052.s001 https://figshare.com/articles/dataset/DataSheet_1_Bacterial_Metabolic_Response_to_Change_in_Phytoplankton_Communities_and_Resultant_Effects_on_Carbon_Cycles_in_the_Amundsen_Sea_Polynya_Antarctica_docx/19957565 |
long_lat |
ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Austral Amundsen Sea Rho |
geographic_facet |
Austral Amundsen Sea Rho |
genre |
Amundsen Sea Antarc* Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctica |
op_relation |
doi:10.3389/fmars.2022.872052.s001 https://figshare.com/articles/dataset/DataSheet_1_Bacterial_Metabolic_Response_to_Change_in_Phytoplankton_Communities_and_Resultant_Effects_on_Carbon_Cycles_in_the_Amundsen_Sea_Polynya_Antarctica_docx/19957565 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2022.872052.s001 |
_version_ |
1766376001332314112 |