Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico

Autores
Temperoni, Brenda; Isla Naveira, Rocío; Derisio, Carla María; Massa, Agueda Elena
Año de publicación
2024
Idioma
inglés
Tipo de recurso
conjunto de datos
Estado
Descripción
Fatty acids (FA) play critical roles in trophic interactions in aquatic food webs, transferring from phytoplankton to fish, and being modulated by oceanographic conditions and productivity. FA are a well-established approach for studying fish feeding preferences, and can indicate habitat quality and ecosystem condition. Thus, they provide valuable information in the context of fisheries management. The aim of this research was to determine the FA profiles of age-0 + hake Merluccius hubbsi and their zooplankton prey (Euphausia spp., Munida gregaria, Themisto gaudichaudii), identify FA trophic markers, infer their diet in comparison with stomachs information, and evaluate spatial changes in FA indicators with respect to the austral spring environmental variability in the Patagonian nursery ground (San Jorge Gulf, SJG; 45º-47ºS, 65º30’ 67º30’W). We hypothesize that age-0 + hake and zooplankton FA composition relate to frontal structures and chlorophyll-a concentration, revealing diatoms predominance in the SJG spring food web. Major FA in hake and zooplankton were 16:0, 16:1n7, 18:1n9, 20:5n3 and 22:6n3. Age-0 + hake profiles mostly resembled euphausiids FA composition, in agreement with the stomachs analysis. Bacterial (15:0 + 17:0 + 17:1 + 18:1n7) and a mixed signal from both diatoms (16:1n7 + 20:5n3) and dinoflagellates (18:4n3 + 22:6n3) were recorded in the profiles; these suggest the existence of a classical food web in central coastal waters of the gulf and an omnivorous one towards the north and south extremes. Results are useful for a better understanding of the SJG food web and the key role age-0 + hake play in energy transfer, contributing to ongoing M. hubbsi recruitment studies in the region.
Fil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Isla Naveira, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Derisio, Carla María. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Massa, Agueda Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235008
Acceder
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spelling Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónicoTemperoni, BrendaIsla Naveira, RocíoDerisio, Carla MaríaMassa, Agueda Elenahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Fatty acids (FA) play critical roles in trophic interactions in aquatic food webs, transferring from phytoplankton to fish, and being modulated by oceanographic conditions and productivity. FA are a well-established approach for studying fish feeding preferences, and can indicate habitat quality and ecosystem condition. Thus, they provide valuable information in the context of fisheries management. The aim of this research was to determine the FA profiles of age-0 + hake Merluccius hubbsi and their zooplankton prey (Euphausia spp., Munida gregaria, Themisto gaudichaudii), identify FA trophic markers, infer their diet in comparison with stomachs information, and evaluate spatial changes in FA indicators with respect to the austral spring environmental variability in the Patagonian nursery ground (San Jorge Gulf, SJG; 45º-47ºS, 65º30’ 67º30’W). We hypothesize that age-0 + hake and zooplankton FA composition relate to frontal structures and chlorophyll-a concentration, revealing diatoms predominance in the SJG spring food web. Major FA in hake and zooplankton were 16:0, 16:1n7, 18:1n9, 20:5n3 and 22:6n3. Age-0 + hake profiles mostly resembled euphausiids FA composition, in agreement with the stomachs analysis. Bacterial (15:0 + 17:0 + 17:1 + 18:1n7) and a mixed signal from both diatoms (16:1n7 + 20:5n3) and dinoflagellates (18:4n3 + 22:6n3) were recorded in the profiles; these suggest the existence of a classical food web in central coastal waters of the gulf and an omnivorous one towards the north and south extremes. Results are useful for a better understanding of the SJG food web and the key role age-0 + hake play in energy transfer, contributing to ongoing M. hubbsi recruitment studies in the region.Fil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Isla Naveira, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Derisio, Carla María. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Massa, Agueda Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina2024info:ar-repo/semantics/conjuntoDeDatosv1.0info:eu-repo/semantics/dataSetapplication/vnd.ms-excelhttp://hdl.handle.net/11336/235008Temperoni, Brenda; Isla Naveira, Rocío; Derisio, Carla María; Massa, Agueda Elena; (2024): Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico. Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/235008CONICET DigitalCONICETenginfo:eu-repo/grantAgreement/Ministerio de Ciencia, Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica. Fondo para la Investigación Científica y Tecnológica/PICT 2016-0839info:eu-repo/grantAgreement/Instituto Nacional de Investigaciones y Desarrollo Pesquero/PICT 2016-0839info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:14:28Zoai:ri.conicet.gov.ar:11336/235008instacron: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:34982025-10-22 11:14:28.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
title Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
spellingShingle Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
Temperoni, Brenda
title_short Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
title_full Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
title_fullStr Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
title_full_unstemmed Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
title_sort Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico
dc.creator.none.fl_str_mv Temperoni, Brenda
Isla Naveira, Rocío
Derisio, Carla María
Massa, Agueda Elena
author Temperoni, Brenda
author_facet Temperoni, Brenda
Isla Naveira, Rocío
Derisio, Carla María
Massa, Agueda Elena
author_role author
author2 Isla Naveira, Rocío
Derisio, Carla María
Massa, Agueda Elena
author2_role author
author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Fatty acids (FA) play critical roles in trophic interactions in aquatic food webs, transferring from phytoplankton to fish, and being modulated by oceanographic conditions and productivity. FA are a well-established approach for studying fish feeding preferences, and can indicate habitat quality and ecosystem condition. Thus, they provide valuable information in the context of fisheries management. The aim of this research was to determine the FA profiles of age-0 + hake Merluccius hubbsi and their zooplankton prey (Euphausia spp., Munida gregaria, Themisto gaudichaudii), identify FA trophic markers, infer their diet in comparison with stomachs information, and evaluate spatial changes in FA indicators with respect to the austral spring environmental variability in the Patagonian nursery ground (San Jorge Gulf, SJG; 45º-47ºS, 65º30’ 67º30’W). We hypothesize that age-0 + hake and zooplankton FA composition relate to frontal structures and chlorophyll-a concentration, revealing diatoms predominance in the SJG spring food web. Major FA in hake and zooplankton were 16:0, 16:1n7, 18:1n9, 20:5n3 and 22:6n3. Age-0 + hake profiles mostly resembled euphausiids FA composition, in agreement with the stomachs analysis. Bacterial (15:0 + 17:0 + 17:1 + 18:1n7) and a mixed signal from both diatoms (16:1n7 + 20:5n3) and dinoflagellates (18:4n3 + 22:6n3) were recorded in the profiles; these suggest the existence of a classical food web in central coastal waters of the gulf and an omnivorous one towards the north and south extremes. Results are useful for a better understanding of the SJG food web and the key role age-0 + hake play in energy transfer, contributing to ongoing M. hubbsi recruitment studies in the region.
Fil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Isla Naveira, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Derisio, Carla María. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Massa, Agueda Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
description Fatty acids (FA) play critical roles in trophic interactions in aquatic food webs, transferring from phytoplankton to fish, and being modulated by oceanographic conditions and productivity. FA are a well-established approach for studying fish feeding preferences, and can indicate habitat quality and ecosystem condition. Thus, they provide valuable information in the context of fisheries management. The aim of this research was to determine the FA profiles of age-0 + hake Merluccius hubbsi and their zooplankton prey (Euphausia spp., Munida gregaria, Themisto gaudichaudii), identify FA trophic markers, infer their diet in comparison with stomachs information, and evaluate spatial changes in FA indicators with respect to the austral spring environmental variability in the Patagonian nursery ground (San Jorge Gulf, SJG; 45º-47ºS, 65º30’ 67º30’W). We hypothesize that age-0 + hake and zooplankton FA composition relate to frontal structures and chlorophyll-a concentration, revealing diatoms predominance in the SJG spring food web. Major FA in hake and zooplankton were 16:0, 16:1n7, 18:1n9, 20:5n3 and 22:6n3. Age-0 + hake profiles mostly resembled euphausiids FA composition, in agreement with the stomachs analysis. Bacterial (15:0 + 17:0 + 17:1 + 18:1n7) and a mixed signal from both diatoms (16:1n7 + 20:5n3) and dinoflagellates (18:4n3 + 22:6n3) were recorded in the profiles; these suggest the existence of a classical food web in central coastal waters of the gulf and an omnivorous one towards the north and south extremes. Results are useful for a better understanding of the SJG food web and the key role age-0 + hake play in energy transfer, contributing to ongoing M. hubbsi recruitment studies in the region.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:ar-repo/semantics/conjuntoDeDatos
v1.0
info:eu-repo/semantics/dataSet
format dataSet
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235008
Temperoni, Brenda; Isla Naveira, Rocío; Derisio, Carla María; Massa, Agueda Elena; (2024): Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico. Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/235008
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235008
identifier_str_mv Temperoni, Brenda; Isla Naveira, Rocío; Derisio, Carla María; Massa, Agueda Elena; (2024): Perfil de ácidos grasos de prerreclutas de Merluccius hubbsi del efectivo patagónico. Consejo Nacional de Investigaciones Científicas y Técnicas. (dataset). http://hdl.handle.net/11336/235008
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/Ministerio de Ciencia, Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica. Fondo para la Investigación Científica y Tecnológica/PICT 2016-0839
info:eu-repo/grantAgreement/Instituto Nacional de Investigaciones y Desarrollo Pesquero/PICT 2016-0839
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/vnd.ms-excel
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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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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