A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales

We study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total organic carbon [TOC]), and inorganic carbon...

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Autores:
Álvarez‐Covelli, Catalina
Kasper‐Zubillaga, Juan José
Lozano‐García, María del Socorro
Arellano-Torres, Elsa
Tipo de recurso:
Fecha de publicación:
2019
Institución:
Universidad El Bosque
Repositorio:
Repositorio U. El Bosque
Idioma:
eng
OAI Identifier:
oai:repositorio.unbosque.edu.co:20.500.12495/1752
Acceso en línea:
http://hdl.handle.net/20.500.12495/1752
https://doi.org/10.1029/2018PA003479
Palabra clave:
Fitoplancton
Carbono
Fondo oceánico
Rights
License
Acceso cerrado
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network_name_str Repositorio U. El Bosque
repository_id_str
dc.title.spa.fl_str_mv A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
title A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
spellingShingle A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
Fitoplancton
Carbono
Fondo oceánico
title_short A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
title_full A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
title_fullStr A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
title_full_unstemmed A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
title_sort A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scales
dc.creator.fl_str_mv Álvarez‐Covelli, Catalina
Kasper‐Zubillaga, Juan José
Lozano‐García, María del Socorro
Arellano-Torres, Elsa
dc.contributor.author.none.fl_str_mv Álvarez‐Covelli, Catalina
Kasper‐Zubillaga, Juan José
Lozano‐García, María del Socorro
Arellano-Torres, Elsa
dc.subject.decs.spa.fl_str_mv Fitoplancton
Carbono
Fondo oceánico
topic Fitoplancton
Carbono
Fondo oceánico
description We study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total organic carbon [TOC]), and inorganic carbon (% CaCO3) as proxies of productivity and opal/TOC and CaCO3/TOC ratios as proxies of nutrient uptake and C‐export by siliceous and carbonate organisms. We reconstructed terrestrial inputs and identified authigenic gypsum. Based on opal/TOC and CaCO3/TOC ratios, we found periodic changes of ~0.5, 1.1–1.8 ka cycle in phytoplankton proxies exporting siliceous and carbonate skeletal debris to the sediments. An increase in carbonate organisms occurred during 14–8.7 ka, corresponding to reduced El Niño–Southern Oscillation (ENSO)‐like variability, in parallel to the northward displacement of the Intertropical Convergence Zone (ITCZ) and an overall negative phase of the Pacific Decadal Oscillation (PDO). An increase in siliceous organisms occurred between 6 and 3 ka, coincident with strong ENSO‐like conditions, southern migration of ITCZ, and less intense but more frequent positive PDO‐hydrological variability. Grain size analyses show significant amounts of fine fraction (dust <6.6 μm) present during the early‐ to mid‐Holocene in agreement to extreme weather on land, with episodes of eolian and fluvial transport to the sea. The ENSO‐like variations influenced biological C‐export producers on a scale of 1.1–1.8 ka, but PDO‐related variability is uncertain. We suggest that Holocene drivers for phytoplankton successions are changes in insolation, ITCZ migration, California Current upwelling, nutrient inputs by advection, and terrestrial sources.
publishDate 2019
dc.date.accessioned.none.fl_str_mv 2019-09-25T12:58:59Z
dc.date.available.none.fl_str_mv 2019-09-25T12:58:59Z
dc.date.issued.none.fl_str_mv 2019
dc.type.spa.fl_str_mv article
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dc.type.local.spa.fl_str_mv artículo
dc.identifier.issn.none.fl_str_mv 2572-4525
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/20.500.12495/1752
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1029/2018PA003479
dc.identifier.instname.spa.fl_str_mv instname:Universidad El Bosque
dc.identifier.reponame.spa.fl_str_mv reponame:Repositorio Institucional Universidad El Bosque
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identifier_str_mv 2572-4525
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reponame:Repositorio Institucional Universidad El Bosque
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url http://hdl.handle.net/20.500.12495/1752
https://doi.org/10.1029/2018PA003479
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.ispartofseries.spa.fl_str_mv Paleoceanography and Paleoclimatology, 2572-4525, Vol. 34, Nro, 1, 2019, 35-53
dc.relation.uri.none.fl_str_mv https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018PA003479
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.local.spa.fl_str_mv Acceso cerrado
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dc.rights.creativecommons.none.fl_str_mv 2019
rights_invalid_str_mv Acceso cerrado
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dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv John Wiley and Sons
dc.publisher.journal.spa.fl_str_mv Paleoceanography and Paleoclimatology
institution Universidad El Bosque
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spelling Álvarez‐Covelli, CatalinaKasper‐Zubillaga, Juan JoséLozano‐García, María del SocorroArellano-Torres, Elsa2019-09-25T12:58:59Z2019-09-25T12:58:59Z20192572-4525http://hdl.handle.net/20.500.12495/1752https://doi.org/10.1029/2018PA003479instname:Universidad El Bosquereponame:Repositorio Institucional Universidad El Bosquerepourl:https://repositorio.unbosque.edu.coapplication/pdfengJohn Wiley and SonsPaleoceanography and PaleoclimatologyPaleoceanography and Paleoclimatology, 2572-4525, Vol. 34, Nro, 1, 2019, 35-53https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018PA003479A 14‐ka record of dust input and phytoplankton regime changes in the subtropical NE pacific: oceanic and terrestrial processes linked by teleconnections at suborbital scalesarticleartículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501FitoplanctonCarbonoFondo oceánicoWe study shifts in phytoplankton proxies linked to terrigenous inputs and teleconnections in a core from Soledad Basin, Gulf of Ulloa, NW Mexico, spanning the end of the deglaciation and the Holocene. We used biogenic opal (% opal), organic carbon (% total organic carbon [TOC]), and inorganic carbon (% CaCO3) as proxies of productivity and opal/TOC and CaCO3/TOC ratios as proxies of nutrient uptake and C‐export by siliceous and carbonate organisms. We reconstructed terrestrial inputs and identified authigenic gypsum. Based on opal/TOC and CaCO3/TOC ratios, we found periodic changes of ~0.5, 1.1–1.8 ka cycle in phytoplankton proxies exporting siliceous and carbonate skeletal debris to the sediments. An increase in carbonate organisms occurred during 14–8.7 ka, corresponding to reduced El Niño–Southern Oscillation (ENSO)‐like variability, in parallel to the northward displacement of the Intertropical Convergence Zone (ITCZ) and an overall negative phase of the Pacific Decadal Oscillation (PDO). An increase in siliceous organisms occurred between 6 and 3 ka, coincident with strong ENSO‐like conditions, southern migration of ITCZ, and less intense but more frequent positive PDO‐hydrological variability. Grain size analyses show significant amounts of fine fraction (dust <6.6 μm) present during the early‐ to mid‐Holocene in agreement to extreme weather on land, with episodes of eolian and fluvial transport to the sea. The ENSO‐like variations influenced biological C‐export producers on a scale of 1.1–1.8 ka, but PDO‐related variability is uncertain. We suggest that Holocene drivers for phytoplankton successions are changes in insolation, ITCZ migration, California Current upwelling, nutrient inputs by advection, and terrestrial sources.Acceso cerradohttp://purl.org/coar/access_right/c_abf122019http://purl.org/coar/access_right/c_abf2ORIGINALArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdfArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdfapplication/pdf4527290https://repositorio.unbosque.edu.co/bitstreams/554988c7-ec50-4fa3-a596-8f0731a299be/downloadc3399088fdcc26313bf7c8b8a5004f33MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.unbosque.edu.co/bitstreams/1af4bfcf-2995-46cd-b6d6-877024468081/download8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.jpgArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.jpgIM Thumbnailimage/jpeg11873https://repositorio.unbosque.edu.co/bitstreams/eeb8415c-e8e3-4ffd-bde9-1a6744397507/downloadbbe9caed84d1c95eb4fdf4552f56433dMD53TEXTArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.txtArellano-Torres E., Álvarez-Covelli C., Kasper-Zubillaga J.J., Lozano-García M.D.S._2019.pdf.txtExtracted texttext/plain101315https://repositorio.unbosque.edu.co/bitstreams/904d9431-8d96-4817-b954-aaa7579a370b/download45d7da0a5ef6a0abddff5e1bf217f0bdMD5420.500.12495/1752oai:repositorio.unbosque.edu.co:20.500.12495/17522024-02-06 23:01:01.526restrictedhttps://repositorio.unbosque.edu.coRepositorio Institucional Universidad El Bosquebibliotecas@biteca.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