Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption

Autores
Riccialdelli, Luciana; Becker, Yamila Anabella; Fioramonti, Nicolas Ezequiel; Torres, Monica Analia; Bruno, Daniel Osvaldo; Raya Rey, Andrea Nélida; Fernandez, Daniel Alfredo
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Understanding the structure and functioning of marine ecosystems has become a critical issue to assess the potential short- and long-term effects of natural and anthropogenic impacts and to determine the knowledge needed to conduct appropriate conservation actions. This goal can be achieved in part by acquiring more detailed food web information and evaluating the processes that shape food web structure and dynamics. Our main objective was to identify large-scale patterns in the organization of pelagic food webs that can be linked to a wasp-waist (WW) structure, proposed for the southwestern South Atlantic Ocean. We evaluated 3 sub-Antarctic marine areas in a regional context: the Beagle Channel (BC), the Atlantic coast of Tierra del Fuego (CA) and the oceanic Burdwood Bank area (BB). We used carbon and nitrogen isotopic information of all functional trophic groups, ranging from primary producers to top predators, and analyzed them through stable isotope-based Bayesian analyses. We found that BC and BB have a more pronounced WW structure compared to CA. We identified species at mid to low trophic positions that play a key role in the trophodynamics of each marine area (e.g. Fuegian sprat Sprattus fuegensis, longtail southern cod Patagonotothen ramsayi and squat lobster Munida gregaria) and considered them as the most plausible WW species. The identification of the most influential species within food webs has become a crucial task for conservation purposes in local and regional contexts to maintain ecosystem integrity and the supply of ecosystem services for the southwestern South Atlantic Ocean.
Fil: Riccialdelli, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Becker, Yamila Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Fioramonti, Nicolas Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Torres, Monica Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Bruno, Daniel Osvaldo. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Raya Rey, Andrea Nélida. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina
Materia
BEAGLE CHANNEL
MPA NAMUNCURÁ-BURDWOOD BANK
PELAGIC FOOD WEB
TIERRA DEL FUEGO
WASP-WAIST STRUCTURE
Δ13C
Δ15N
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/125933
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/125933
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumptionRiccialdelli, LucianaBecker, Yamila AnabellaFioramonti, Nicolas EzequielTorres, Monica AnaliaBruno, Daniel OsvaldoRaya Rey, Andrea NélidaFernandez, Daniel AlfredoBEAGLE CHANNELMPA NAMUNCURÁ-BURDWOOD BANKPELAGIC FOOD WEBTIERRA DEL FUEGOWASP-WAIST STRUCTUREΔ13CΔ15Nhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Understanding the structure and functioning of marine ecosystems has become a critical issue to assess the potential short- and long-term effects of natural and anthropogenic impacts and to determine the knowledge needed to conduct appropriate conservation actions. This goal can be achieved in part by acquiring more detailed food web information and evaluating the processes that shape food web structure and dynamics. Our main objective was to identify large-scale patterns in the organization of pelagic food webs that can be linked to a wasp-waist (WW) structure, proposed for the southwestern South Atlantic Ocean. We evaluated 3 sub-Antarctic marine areas in a regional context: the Beagle Channel (BC), the Atlantic coast of Tierra del Fuego (CA) and the oceanic Burdwood Bank area (BB). We used carbon and nitrogen isotopic information of all functional trophic groups, ranging from primary producers to top predators, and analyzed them through stable isotope-based Bayesian analyses. We found that BC and BB have a more pronounced WW structure compared to CA. We identified species at mid to low trophic positions that play a key role in the trophodynamics of each marine area (e.g. Fuegian sprat Sprattus fuegensis, longtail southern cod Patagonotothen ramsayi and squat lobster Munida gregaria) and considered them as the most plausible WW species. The identification of the most influential species within food webs has become a crucial task for conservation purposes in local and regional contexts to maintain ecosystem integrity and the supply of ecosystem services for the southwestern South Atlantic Ocean.Fil: Riccialdelli, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Becker, Yamila Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Fioramonti, Nicolas Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Torres, Monica Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Bruno, Daniel Osvaldo. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Raya Rey, Andrea Nélida. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; ArgentinaInter-Research2020-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125933Riccialdelli, Luciana; Becker, Yamila Anabella; Fioramonti, Nicolas Ezequiel; Torres, Monica Analia; Bruno, Daniel Osvaldo; et al.; Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption; Inter-Research; Marine Ecology Progress Series; 655; 11-2020; 1-270171-8630CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/prepress/m13524.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.3354/meps13524info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:10Zoai:ri.conicet.gov.ar:11336/125933instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:44:11.28CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
title Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
spellingShingle Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
Riccialdelli, Luciana
BEAGLE CHANNEL
MPA NAMUNCURÁ-BURDWOOD BANK
PELAGIC FOOD WEB
TIERRA DEL FUEGO
WASP-WAIST STRUCTURE
Δ13C
Δ15N
title_short Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
title_full Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
title_fullStr Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
title_full_unstemmed Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
title_sort Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption
dc.creator.none.fl_str_mv Riccialdelli, Luciana
Becker, Yamila Anabella
Fioramonti, Nicolas Ezequiel
Torres, Monica Analia
Bruno, Daniel Osvaldo
Raya Rey, Andrea Nélida
Fernandez, Daniel Alfredo
author Riccialdelli, Luciana
author_facet Riccialdelli, Luciana
Becker, Yamila Anabella
Fioramonti, Nicolas Ezequiel
Torres, Monica Analia
Bruno, Daniel Osvaldo
Raya Rey, Andrea Nélida
Fernandez, Daniel Alfredo
author_role author
author2 Becker, Yamila Anabella
Fioramonti, Nicolas Ezequiel
Torres, Monica Analia
Bruno, Daniel Osvaldo
Raya Rey, Andrea Nélida
Fernandez, Daniel Alfredo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv BEAGLE CHANNEL
MPA NAMUNCURÁ-BURDWOOD BANK
PELAGIC FOOD WEB
TIERRA DEL FUEGO
WASP-WAIST STRUCTURE
Δ13C
Δ15N
topic BEAGLE CHANNEL
MPA NAMUNCURÁ-BURDWOOD BANK
PELAGIC FOOD WEB
TIERRA DEL FUEGO
WASP-WAIST STRUCTURE
Δ13C
Δ15N
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Understanding the structure and functioning of marine ecosystems has become a critical issue to assess the potential short- and long-term effects of natural and anthropogenic impacts and to determine the knowledge needed to conduct appropriate conservation actions. This goal can be achieved in part by acquiring more detailed food web information and evaluating the processes that shape food web structure and dynamics. Our main objective was to identify large-scale patterns in the organization of pelagic food webs that can be linked to a wasp-waist (WW) structure, proposed for the southwestern South Atlantic Ocean. We evaluated 3 sub-Antarctic marine areas in a regional context: the Beagle Channel (BC), the Atlantic coast of Tierra del Fuego (CA) and the oceanic Burdwood Bank area (BB). We used carbon and nitrogen isotopic information of all functional trophic groups, ranging from primary producers to top predators, and analyzed them through stable isotope-based Bayesian analyses. We found that BC and BB have a more pronounced WW structure compared to CA. We identified species at mid to low trophic positions that play a key role in the trophodynamics of each marine area (e.g. Fuegian sprat Sprattus fuegensis, longtail southern cod Patagonotothen ramsayi and squat lobster Munida gregaria) and considered them as the most plausible WW species. The identification of the most influential species within food webs has become a crucial task for conservation purposes in local and regional contexts to maintain ecosystem integrity and the supply of ecosystem services for the southwestern South Atlantic Ocean.
Fil: Riccialdelli, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Becker, Yamila Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Fioramonti, Nicolas Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Torres, Monica Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Bruno, Daniel Osvaldo. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Raya Rey, Andrea Nélida. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego. Instituto de Ciencias Polares, Recursos Naturales y Ambiente; Argentina
description Understanding the structure and functioning of marine ecosystems has become a critical issue to assess the potential short- and long-term effects of natural and anthropogenic impacts and to determine the knowledge needed to conduct appropriate conservation actions. This goal can be achieved in part by acquiring more detailed food web information and evaluating the processes that shape food web structure and dynamics. Our main objective was to identify large-scale patterns in the organization of pelagic food webs that can be linked to a wasp-waist (WW) structure, proposed for the southwestern South Atlantic Ocean. We evaluated 3 sub-Antarctic marine areas in a regional context: the Beagle Channel (BC), the Atlantic coast of Tierra del Fuego (CA) and the oceanic Burdwood Bank area (BB). We used carbon and nitrogen isotopic information of all functional trophic groups, ranging from primary producers to top predators, and analyzed them through stable isotope-based Bayesian analyses. We found that BC and BB have a more pronounced WW structure compared to CA. We identified species at mid to low trophic positions that play a key role in the trophodynamics of each marine area (e.g. Fuegian sprat Sprattus fuegensis, longtail southern cod Patagonotothen ramsayi and squat lobster Munida gregaria) and considered them as the most plausible WW species. The identification of the most influential species within food webs has become a crucial task for conservation purposes in local and regional contexts to maintain ecosystem integrity and the supply of ecosystem services for the southwestern South Atlantic Ocean.
publishDate 2020
dc.date.none.fl_str_mv 2020-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/125933
Riccialdelli, Luciana; Becker, Yamila Anabella; Fioramonti, Nicolas Ezequiel; Torres, Monica Analia; Bruno, Daniel Osvaldo; et al.; Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption; Inter-Research; Marine Ecology Progress Series; 655; 11-2020; 1-27
0171-8630
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125933
identifier_str_mv Riccialdelli, Luciana; Becker, Yamila Anabella; Fioramonti, Nicolas Ezequiel; Torres, Monica Analia; Bruno, Daniel Osvaldo; et al.; Trophic structure of southern marine ecosystems: A comparative isotopic analysis from the beagle channel to the oceanic burdwood bank area under a wasp-waist assumption; Inter-Research; Marine Ecology Progress Series; 655; 11-2020; 1-27
0171-8630
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/prepress/m13524.html
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps13524
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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