Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes

Autores
Funes, Manuela; Irigoyen, Alejo Joaquin; Trobbiani, Gastón Andres; Galvan, David Edgardo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Forage species are key nodes in the energy fluxes between benthic and pelagic zones. The squat lobster, Munida gregaria, is a common forage species of the Southern Hemisphere and its abundance is increasing. This species presents two ecotypes: one (subrugosa) that settles on the sea bottom immediately after the metamorphosis and another (gregaria) that remains in the water column for a variable period of time, before adopting a benthic habit. Hypotheses on its settlement are conflicting; one proposes that it is a density-dependent process of the sea bottom and the other that it is regulated by the availability of pelagic food. To rule out whether feeding factors could be significant in the decision-making process, the first step is to identify whether the ecotypes have different diets or not. This study compared the isotopic niche location, the trophic levels and the reliance on benthic or pelagic resources between ecotypes. Among all sampling events, the isotopic niches of the gregaria and the subrugosa ecotypes were significantly distant from each other. In addition, the difference in δ13C values between ecotypes covered an average of 75% of the total difference between pelagic and benthic pathways. Benthic individuals relied mostly on benthic animals, while pelagic individuals relied on pelagic primary producers. Overall, results show that each ecotype feeds mainly on different energy pathways. Considering its feeding ecology and movements during life history, M. gregaria is a key component of bentho-pelagic coupling.
Fil: Funes, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Irigoyen, Alejo Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Trobbiani, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Galvan, David Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Materia
BENTHO-PELAGIC COUPLING
DIET SOURCES
FEEDING ECOLOGY
SQUAT LOBSTERS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/88782
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88782
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypesFunes, ManuelaIrigoyen, Alejo JoaquinTrobbiani, Gastón AndresGalvan, David EdgardoBENTHO-PELAGIC COUPLINGDIET SOURCESFEEDING ECOLOGYSQUAT LOBSTERShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Forage species are key nodes in the energy fluxes between benthic and pelagic zones. The squat lobster, Munida gregaria, is a common forage species of the Southern Hemisphere and its abundance is increasing. This species presents two ecotypes: one (subrugosa) that settles on the sea bottom immediately after the metamorphosis and another (gregaria) that remains in the water column for a variable period of time, before adopting a benthic habit. Hypotheses on its settlement are conflicting; one proposes that it is a density-dependent process of the sea bottom and the other that it is regulated by the availability of pelagic food. To rule out whether feeding factors could be significant in the decision-making process, the first step is to identify whether the ecotypes have different diets or not. This study compared the isotopic niche location, the trophic levels and the reliance on benthic or pelagic resources between ecotypes. Among all sampling events, the isotopic niches of the gregaria and the subrugosa ecotypes were significantly distant from each other. In addition, the difference in δ13C values between ecotypes covered an average of 75% of the total difference between pelagic and benthic pathways. Benthic individuals relied mostly on benthic animals, while pelagic individuals relied on pelagic primary producers. Overall, results show that each ecotype feeds mainly on different energy pathways. Considering its feeding ecology and movements during life history, M. gregaria is a key component of bentho-pelagic coupling.Fil: Funes, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Irigoyen, Alejo Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Trobbiani, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Galvan, David Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaElsevier2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88782Funes, Manuela; Irigoyen, Alejo Joaquin; Trobbiani, Gastón Andres; Galvan, David Edgardo; Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes; Elsevier; Food Webs; 17; 12-2018; 1-92352-2496CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.fooweb.2018.e00101info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2352249618300272info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:24Zoai:ri.conicet.gov.ar:11336/88782instacron: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:34982025-09-03 09:46:24.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
title Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
spellingShingle Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
Funes, Manuela
BENTHO-PELAGIC COUPLING
DIET SOURCES
FEEDING ECOLOGY
SQUAT LOBSTERS
title_short Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
title_full Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
title_fullStr Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
title_full_unstemmed Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
title_sort Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes
dc.creator.none.fl_str_mv Funes, Manuela
Irigoyen, Alejo Joaquin
Trobbiani, Gastón Andres
Galvan, David Edgardo
author Funes, Manuela
author_facet Funes, Manuela
Irigoyen, Alejo Joaquin
Trobbiani, Gastón Andres
Galvan, David Edgardo
author_role author
author2 Irigoyen, Alejo Joaquin
Trobbiani, Gastón Andres
Galvan, David Edgardo
author2_role author
author
author
dc.subject.none.fl_str_mv BENTHO-PELAGIC COUPLING
DIET SOURCES
FEEDING ECOLOGY
SQUAT LOBSTERS
topic BENTHO-PELAGIC COUPLING
DIET SOURCES
FEEDING ECOLOGY
SQUAT LOBSTERS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Forage species are key nodes in the energy fluxes between benthic and pelagic zones. The squat lobster, Munida gregaria, is a common forage species of the Southern Hemisphere and its abundance is increasing. This species presents two ecotypes: one (subrugosa) that settles on the sea bottom immediately after the metamorphosis and another (gregaria) that remains in the water column for a variable period of time, before adopting a benthic habit. Hypotheses on its settlement are conflicting; one proposes that it is a density-dependent process of the sea bottom and the other that it is regulated by the availability of pelagic food. To rule out whether feeding factors could be significant in the decision-making process, the first step is to identify whether the ecotypes have different diets or not. This study compared the isotopic niche location, the trophic levels and the reliance on benthic or pelagic resources between ecotypes. Among all sampling events, the isotopic niches of the gregaria and the subrugosa ecotypes were significantly distant from each other. In addition, the difference in δ13C values between ecotypes covered an average of 75% of the total difference between pelagic and benthic pathways. Benthic individuals relied mostly on benthic animals, while pelagic individuals relied on pelagic primary producers. Overall, results show that each ecotype feeds mainly on different energy pathways. Considering its feeding ecology and movements during life history, M. gregaria is a key component of bentho-pelagic coupling.
Fil: Funes, Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Irigoyen, Alejo Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Trobbiani, Gastón Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Galvan, David Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
description Forage species are key nodes in the energy fluxes between benthic and pelagic zones. The squat lobster, Munida gregaria, is a common forage species of the Southern Hemisphere and its abundance is increasing. This species presents two ecotypes: one (subrugosa) that settles on the sea bottom immediately after the metamorphosis and another (gregaria) that remains in the water column for a variable period of time, before adopting a benthic habit. Hypotheses on its settlement are conflicting; one proposes that it is a density-dependent process of the sea bottom and the other that it is regulated by the availability of pelagic food. To rule out whether feeding factors could be significant in the decision-making process, the first step is to identify whether the ecotypes have different diets or not. This study compared the isotopic niche location, the trophic levels and the reliance on benthic or pelagic resources between ecotypes. Among all sampling events, the isotopic niches of the gregaria and the subrugosa ecotypes were significantly distant from each other. In addition, the difference in δ13C values between ecotypes covered an average of 75% of the total difference between pelagic and benthic pathways. Benthic individuals relied mostly on benthic animals, while pelagic individuals relied on pelagic primary producers. Overall, results show that each ecotype feeds mainly on different energy pathways. Considering its feeding ecology and movements during life history, M. gregaria is a key component of bentho-pelagic coupling.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
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/11336/88782
Funes, Manuela; Irigoyen, Alejo Joaquin; Trobbiani, Gastón Andres; Galvan, David Edgardo; Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes; Elsevier; Food Webs; 17; 12-2018; 1-9
2352-2496
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88782
identifier_str_mv Funes, Manuela; Irigoyen, Alejo Joaquin; Trobbiani, Gastón Andres; Galvan, David Edgardo; Stable isotopes reveal different dependencies on benthic and pelagic pathways between Munida gregaria ecotypes; Elsevier; Food Webs; 17; 12-2018; 1-9
2352-2496
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fooweb.2018.e00101
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2352249618300272
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 13.13397

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