Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean

20 pages, 11 figures, 3 tables, supplemental material https://doi.org/10.3389/fmars.2019.00535

Detalles Bibliográficos
Autores: Hernández León, Santiago, Olivar, M. Pilar, Fernández de Puelles, María Luz, Bode, Antonio, Castellón, Arturo, López-Pérez, Cristina, Tuset, Víctor M., González-Gordillo, J. Ignacio
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/192458
Acceso en línea:http://hdl.handle.net/10261/192458
Access Level:acceso abierto
Palabra clave:Atlantic Ocean
Zooplankton
Biological pump
Active flux
Passive flux
Micronekton
id ES_f97cab202d904d9b9df1d0b12a097cb8
oai_identifier_str oai:digital.csic.es:10261/192458
network_acronym_str ES
network_name_str España
repository_id_str
spelling Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic OceanHernández León, SantiagoOlivar, M. PilarFernández de Puelles, María LuzBode, AntonioCastellón, ArturoLópez-Pérez, CristinaTuset, Víctor M.González-Gordillo, J. IgnacioAtlantic OceanZooplanktonBiological pumpActive fluxPassive fluxMicronekton20 pages, 11 figures, 3 tables, supplemental material https://doi.org/10.3389/fmars.2019.00535Quantification of the actual amount of carbon export to the mesopelagic layer by both zooplankton and micronekton is at present a gap in the knowledge of the biological pump. These organisms perform diel vertical migrations exporting carbon through respiration, excretion, mortality, and egestion during their residence at depth. The role of zooplankton in active flux is nowadays partially assessed. However, micronekton active flux is scarcely known and only a few studies addressed this downward transport. Even less is known about the capacity of both communities to export carbon in the ocean. Here, we show the results of zooplankton and micronekton active flux across a productivity gradient in the tropical and subtropical Atlantic Ocean. Biomass vertical distribution from the surface up to 800 m depth by day and night was studied during April 2015 in a transect from 9°S to 25°N, covering from the quite oligotrophic zone off Brazil to the meso- and eutrophic areas of the equator, Guinea Dome, and the oceanic upwelling off Northwest Africa. Zooplankton and micronekton migrant biomass was estimated from day and night catches at different layers of the water column using MOCNESS-1 (1 m2 mouth area) and Mesopelagos (35 m2) nets, respectively. Respiratory flux was assessed by measuring the enzymatic activity of the electron transfer system (ETS) of organisms at depth. Results showed a close relationship between migrant biomass and respiratory flux in zooplankton and micronekton as expected. Using a rather conservative 50% of efficiency for the net used to capture micronekton, respiratory flux resulted in similar values for both communities. Gravitational (passive) flux measured using sediment traps increased from the oligotrophic toward the meso- and eutrophic zones. Total active flux (including respiration and estimated mortality, excretion, and gut flux) by zooplankton and micronekton accounted for about 25% of total flux (passive plus active) in oligotrophic zones. Total active flux also increased toward meso- and eutrophic zones, reaching about 80% of total flux and being at least twofold higher than passive flux. These results alert about an important underestimation of the ocean biological pump using only passive flux measurementsThis work was supported by projects “Migrants and Active Flux in the Atlantic Ocean” (MAFIA, CTM2012-39587-C04), and “Biomass and Active Flux in the Bathypelagic Zone” (Bathypelagic, CTM2016-78853-R) from the Spanish Ministry of Economy and CompetitivenessPeer ReviewedFrontiers MediaMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/192458reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-78853-Rhttps://doi.org/10.3389/fmars.2019.00535Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1924582026-05-22T06:33:51Z
dc.title.none.fl_str_mv Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
title Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
spellingShingle Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
Hernández León, Santiago
Atlantic Ocean
Zooplankton
Biological pump
Active flux
Passive flux
Micronekton
title_short Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
title_full Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
title_fullStr Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
title_full_unstemmed Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
title_sort Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean
dc.creator.none.fl_str_mv Hernández León, Santiago
Olivar, M. Pilar
Fernández de Puelles, María Luz
Bode, Antonio
Castellón, Arturo
López-Pérez, Cristina
Tuset, Víctor M.
González-Gordillo, J. Ignacio
author Hernández León, Santiago
author_facet Hernández León, Santiago
Olivar, M. Pilar
Fernández de Puelles, María Luz
Bode, Antonio
Castellón, Arturo
López-Pérez, Cristina
Tuset, Víctor M.
González-Gordillo, J. Ignacio
author_role author
author2 Olivar, M. Pilar
Fernández de Puelles, María Luz
Bode, Antonio
Castellón, Arturo
López-Pérez, Cristina
Tuset, Víctor M.
González-Gordillo, J. Ignacio
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Atlantic Ocean
Zooplankton
Biological pump
Active flux
Passive flux
Micronekton
topic Atlantic Ocean
Zooplankton
Biological pump
Active flux
Passive flux
Micronekton
description 20 pages, 11 figures, 3 tables, supplemental material https://doi.org/10.3389/fmars.2019.00535
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/192458
url http://hdl.handle.net/10261/192458
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-78853-R
https://doi.org/10.3389/fmars.2019.00535
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425098991075328
score 15,223283

Similares en LA Referencia