Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes

Fully and accurately reconstructing changes in oceanic productivity and carbon export and their controls is critical to determining the efficiency of the biological pump and its role in the global carbon cycle through time, particularly in modern CO2 source regions like the eastern equatorial Pacifi...

Full description

Bibliographic Details
Published in:Scientific Reports
Main Authors: Schimmenti, Danielle, Marcantonio, Franco, Hayes, Christopher T., Hertzberg, Jennifer, Schmidt, Matthew, Sarao, John
Format: Article in Journal/Newspaper
Language:unknown
Published: ODU Digital Commons 2022
Subjects:
Biogeochemistry
Climate sciences
Palaeoceanography
Pacific Ocean
Phytoplankton
Seawater
Chemistry
Carbon
Carbonates
Climate
Environmental Chemistry
Oceanography and Atmospheric Sciences and Meteorology
Southern Ocean
Pacific
Online Access:https://digitalcommons.odu.edu/oeas_fac_pubs/472
https://doi.org/10.1038/s41598-022-26593-1
https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1483/viewcontent/Schmidt_2022_InsightsintotheDeglacialVariabilityOCRed.pdf
id ftolddominionuni:oai:digitalcommons.odu.edu:oeas_fac_pubs-1483
record_format openpolar
spelling ftolddominionuni:oai:digitalcommons.odu.edu:oeas_fac_pubs-1483 2023-06-11T04:17:01+02:00 Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes Schimmenti, Danielle Marcantonio, Franco Hayes, Christopher T. Hertzberg, Jennifer Schmidt, Matthew Sarao, John 2022-01-01T08:00:00Z application/pdf https://digitalcommons.odu.edu/oeas_fac_pubs/472 https://doi.org/10.1038/s41598-022-26593-1 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1483/viewcontent/Schmidt_2022_InsightsintotheDeglacialVariabilityOCRed.pdf unknown ODU Digital Commons https://digitalcommons.odu.edu/oeas_fac_pubs/472 doi:10.1038/s41598-022-26593-1 https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1483/viewcontent/Schmidt_2022_InsightsintotheDeglacialVariabilityOCRed.pdf © The Author(s) 2022 This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0) , which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. OES Faculty Publications Biogeochemistry Climate sciences Palaeoceanography Pacific Ocean Phytoplankton Seawater Chemistry Carbon Carbonates Climate Environmental Chemistry Oceanography and Atmospheric Sciences and Meteorology article 2022 ftolddominionuni https://doi.org/10.1038/s41598-022-26593-1 2023-05-08T18:00:35Z Fully and accurately reconstructing changes in oceanic productivity and carbon export and their controls is critical to determining the efficiency of the biological pump and its role in the global carbon cycle through time, particularly in modern CO2 source regions like the eastern equatorial Pacific (EEP). Here we present new high-resolution records of sedimentary 230Th-normalized opal and nannofossil carbonate fluxes and [231Pa/230Th]xs ratios from site MV1014-02-17JC in the Panama Basin. We find that, across the last deglaciation, phytoplankton community structure is driven by changing patterns of nutrient (nitrate, iron, and silica) availability which, in turn, are caused by variability in the position of the Intertropical Convergence Zone (ITCZ) and associated changes in biogeochemical cycling and circulation in the Southern Ocean. Our multi-proxy work suggests greater scrutiny is required in the interpretation of common geochemical proxies of productivity and carbon export in the EEP. Article in Journal/Newspaper Southern Ocean Old Dominion University: ODU Digital Commons Southern Ocean Pacific Scientific Reports 12 1
institution Open Polar
collection Old Dominion University: ODU Digital Commons
op_collection_id ftolddominionuni
language unknown
topic Biogeochemistry
Climate sciences
Palaeoceanography
Pacific Ocean
Phytoplankton
Seawater
Chemistry
Carbon
Carbonates
Climate
Environmental Chemistry
Oceanography and Atmospheric Sciences and Meteorology
spellingShingle Biogeochemistry
Climate sciences
Palaeoceanography
Pacific Ocean
Phytoplankton
Seawater
Chemistry
Carbon
Carbonates
Climate
Environmental Chemistry
Oceanography and Atmospheric Sciences and Meteorology
Schimmenti, Danielle
Marcantonio, Franco
Hayes, Christopher T.
Hertzberg, Jennifer
Schmidt, Matthew
Sarao, John
Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
topic_facet Biogeochemistry
Climate sciences
Palaeoceanography
Pacific Ocean
Phytoplankton
Seawater
Chemistry
Carbon
Carbonates
Climate
Environmental Chemistry
Oceanography and Atmospheric Sciences and Meteorology
description Fully and accurately reconstructing changes in oceanic productivity and carbon export and their controls is critical to determining the efficiency of the biological pump and its role in the global carbon cycle through time, particularly in modern CO2 source regions like the eastern equatorial Pacific (EEP). Here we present new high-resolution records of sedimentary 230Th-normalized opal and nannofossil carbonate fluxes and [231Pa/230Th]xs ratios from site MV1014-02-17JC in the Panama Basin. We find that, across the last deglaciation, phytoplankton community structure is driven by changing patterns of nutrient (nitrate, iron, and silica) availability which, in turn, are caused by variability in the position of the Intertropical Convergence Zone (ITCZ) and associated changes in biogeochemical cycling and circulation in the Southern Ocean. Our multi-proxy work suggests greater scrutiny is required in the interpretation of common geochemical proxies of productivity and carbon export in the EEP.
format Article in Journal/Newspaper
author Schimmenti, Danielle
Marcantonio, Franco
Hayes, Christopher T.
Hertzberg, Jennifer
Schmidt, Matthew
Sarao, John
author_facet Schimmenti, Danielle
Marcantonio, Franco
Hayes, Christopher T.
Hertzberg, Jennifer
Schmidt, Matthew
Sarao, John
author_sort Schimmenti, Danielle
title Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
title_short Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
title_full Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
title_fullStr Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
title_full_unstemmed Insights Into the Deglacial Variability of Phytoplankton Community Structure in the Eastern Equatorial Pacific Ocean Using [ 231 Pa/ 230 Th]xs and Opal-Carbonate Fluxes
title_sort insights into the deglacial variability of phytoplankton community structure in the eastern equatorial pacific ocean using [ 231 pa/ 230 th]xs and opal-carbonate fluxes
publisher ODU Digital Commons
publishDate 2022
url https://digitalcommons.odu.edu/oeas_fac_pubs/472
https://doi.org/10.1038/s41598-022-26593-1
https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1483/viewcontent/Schmidt_2022_InsightsintotheDeglacialVariabilityOCRed.pdf
geographic Southern Ocean
Pacific
geographic_facet Southern Ocean
Pacific
genre Southern Ocean
genre_facet Southern Ocean
op_source OES Faculty Publications
op_relation https://digitalcommons.odu.edu/oeas_fac_pubs/472
doi:10.1038/s41598-022-26593-1
https://digitalcommons.odu.edu/context/oeas_fac_pubs/article/1483/viewcontent/Schmidt_2022_InsightsintotheDeglacialVariabilityOCRed.pdf
op_rights © The Author(s) 2022 This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0) , which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
op_doi https://doi.org/10.1038/s41598-022-26593-1
container_title Scientific Reports
container_volume 12
container_issue 1
_version_ 1768375796041252864

Similar Items