Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf

Autores
Delpiani, Gabriela Elina; Spath, María Cecilia; Figueroa, Daniel Enrique
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi, on the Argentine Continental Shelf was evaluated using generalized linear models. A. doellojuradoi preyed mainly on crabs 85.41% index of relative importance (IRI)) and to a lesser extent on polychaetes (4.98% IRI), teleosts (3.28% IRI), isopods (2.03% IRI), other crustaceans (1.52% IRI) and other invertebrates (2.78% IRI). As individuals increased in size, the consumption of crabs also increased and the consumption of polychaetes and other invertebrates decreased. The study area was divided into a northern (368?438S) and a southern (438?508 S) region. Regarding to the latitude of capture, it was observed that A. doellojuradoi mainly fed on crabs in the north and on fishes, isopods and other crustaceans in the south. Females of A. doellojuradoi had a stronger preference for fishes and isopods than males. As to sexual maturity, immatures fed more on polychaetes and other crustaceans than did mature. The ontogenetic change in feeding habits could be attributed to body size and an increasing ability to capture larger prey, rather than to food availability. However, this point cannot be confirmed because little is known about the benthic fauna of this area.
Fil: Delpiani, Gabriela Elina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Spath, María Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Figueroa, Daniel Enrique. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina
Materia
Argentina
diet
feeding habits
southern thorny skate
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:11336/133406
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental ShelfDelpiani, Gabriela ElinaSpath, María CeciliaFigueroa, Daniel EnriqueArgentinadietfeeding habitssouthern thorny skatehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi, on the Argentine Continental Shelf was evaluated using generalized linear models. A. doellojuradoi preyed mainly on crabs 85.41% index of relative importance (IRI)) and to a lesser extent on polychaetes (4.98% IRI), teleosts (3.28% IRI), isopods (2.03% IRI), other crustaceans (1.52% IRI) and other invertebrates (2.78% IRI). As individuals increased in size, the consumption of crabs also increased and the consumption of polychaetes and other invertebrates decreased. The study area was divided into a northern (368?438S) and a southern (438?508 S) region. Regarding to the latitude of capture, it was observed that A. doellojuradoi mainly fed on crabs in the north and on fishes, isopods and other crustaceans in the south. Females of A. doellojuradoi had a stronger preference for fishes and isopods than males. As to sexual maturity, immatures fed more on polychaetes and other crustaceans than did mature. The ontogenetic change in feeding habits could be attributed to body size and an increasing ability to capture larger prey, rather than to food availability. However, this point cannot be confirmed because little is known about the benthic fauna of this area.Fil: Delpiani, Gabriela Elina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Spath, María Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Figueroa, Daniel Enrique. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; ArgentinaCambridge University Press2013-03info: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/11336/133406Delpiani, Gabriela Elina; Spath, María Cecilia; Figueroa, Daniel Enrique; Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 93; 3-2013; 2207-22160025-3154CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/abs/feeding-ecology-of-the-southern-thorny-skate-amblyraja-doellojuradoi-on-the-argentine-continental-shelf/EE4BEFD5C23C23530FA13C7269591FB3info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315413000787info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:00:20Zoai:ri.conicet.gov.ar:11336/133406instacron: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:34982025-10-15 15:00:20.814CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
title Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
spellingShingle Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
Delpiani, Gabriela Elina
Argentina
diet
feeding habits
southern thorny skate
title_short Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
title_full Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
title_fullStr Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
title_full_unstemmed Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
title_sort Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf
dc.creator.none.fl_str_mv Delpiani, Gabriela Elina
Spath, María Cecilia
Figueroa, Daniel Enrique
author Delpiani, Gabriela Elina
author_facet Delpiani, Gabriela Elina
Spath, María Cecilia
Figueroa, Daniel Enrique
author_role author
author2 Spath, María Cecilia
Figueroa, Daniel Enrique
author2_role author
author
dc.subject.none.fl_str_mv Argentina
diet
feeding habits
southern thorny skate
topic Argentina
diet
feeding habits
southern thorny skate
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi, on the Argentine Continental Shelf was evaluated using generalized linear models. A. doellojuradoi preyed mainly on crabs 85.41% index of relative importance (IRI)) and to a lesser extent on polychaetes (4.98% IRI), teleosts (3.28% IRI), isopods (2.03% IRI), other crustaceans (1.52% IRI) and other invertebrates (2.78% IRI). As individuals increased in size, the consumption of crabs also increased and the consumption of polychaetes and other invertebrates decreased. The study area was divided into a northern (368?438S) and a southern (438?508 S) region. Regarding to the latitude of capture, it was observed that A. doellojuradoi mainly fed on crabs in the north and on fishes, isopods and other crustaceans in the south. Females of A. doellojuradoi had a stronger preference for fishes and isopods than males. As to sexual maturity, immatures fed more on polychaetes and other crustaceans than did mature. The ontogenetic change in feeding habits could be attributed to body size and an increasing ability to capture larger prey, rather than to food availability. However, this point cannot be confirmed because little is known about the benthic fauna of this area.
Fil: Delpiani, Gabriela Elina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Spath, María Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina. 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: Figueroa, Daniel Enrique. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Marinas. Laboratorio de Ictiología; Argentina
description The feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi, on the Argentine Continental Shelf was evaluated using generalized linear models. A. doellojuradoi preyed mainly on crabs 85.41% index of relative importance (IRI)) and to a lesser extent on polychaetes (4.98% IRI), teleosts (3.28% IRI), isopods (2.03% IRI), other crustaceans (1.52% IRI) and other invertebrates (2.78% IRI). As individuals increased in size, the consumption of crabs also increased and the consumption of polychaetes and other invertebrates decreased. The study area was divided into a northern (368?438S) and a southern (438?508 S) region. Regarding to the latitude of capture, it was observed that A. doellojuradoi mainly fed on crabs in the north and on fishes, isopods and other crustaceans in the south. Females of A. doellojuradoi had a stronger preference for fishes and isopods than males. As to sexual maturity, immatures fed more on polychaetes and other crustaceans than did mature. The ontogenetic change in feeding habits could be attributed to body size and an increasing ability to capture larger prey, rather than to food availability. However, this point cannot be confirmed because little is known about the benthic fauna of this area.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
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/11336/133406
Delpiani, Gabriela Elina; Spath, María Cecilia; Figueroa, Daniel Enrique; Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 93; 3-2013; 2207-2216
0025-3154
CONICET Digital
CONICET
url http://hdl.handle.net/11336/133406
identifier_str_mv Delpiani, Gabriela Elina; Spath, María Cecilia; Figueroa, Daniel Enrique; Feeding ecology of the Southern Thorny Skate, Amblyraja doellojuradoi (Pozzi, 1935) on the Argentine Continental Shelf; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 93; 3-2013; 2207-2216
0025-3154
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.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/abs/feeding-ecology-of-the-southern-thorny-skate-amblyraja-doellojuradoi-on-the-argentine-continental-shelf/EE4BEFD5C23C23530FA13C7269591FB3
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315413000787
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/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
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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