Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina

Autores
Casaux, Ricardo Jorge; Di Prinzio, Cecilia Yanina; Bertolin, María Lila; Tartara, Maria Alejandra
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A total of 124 pellets (regurgitated casts) produced by the Neotropic Cormorant (Phalacrocorax olivaceus) were collected monthly between January 2004 and November 2005 from a roosting site at Rosario Lake Chubut, Patagonia, Argentina. Analyses of the samples showed that fish were the most frequent and important prey by number, followed by crustaceans and molluscs. The three fish species inhabiting Rosario Lake were represented in the diet which suggests that this bird is a generalist feeder. However, cormorants positively selected for Patagonian Silverside and Rainbow Trout, which might be related to their foraging strategy and/or to the conspicuousness of potential prey. The estimated annual fish intake by cormorants at Rosario Lake ranged between 2.3-3.7 tons of fish or 16,000-26,000 individuals. The impact produced by the Neotropic Cormorant on recreational fish resources and local fish farms appears negligible.
Fil: Casaux, Ricardo Jorge. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Di Prinzio, Cecilia Yanina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bertolin, María Lila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tartara, Maria Alejandra. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
DIET COMPOSITION
FISH INTAKE
FISH RESOURCES
IMPACT
NEOTROPIC CORMORANT
PATAGONIA
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:11336/97817
Acceder
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spelling Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, ArgentinaCasaux, Ricardo JorgeDi Prinzio, Cecilia YaninaBertolin, María LilaTartara, Maria AlejandraDIET COMPOSITIONFISH INTAKEFISH RESOURCESIMPACTNEOTROPIC CORMORANTPATAGONIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1A total of 124 pellets (regurgitated casts) produced by the Neotropic Cormorant (Phalacrocorax olivaceus) were collected monthly between January 2004 and November 2005 from a roosting site at Rosario Lake Chubut, Patagonia, Argentina. Analyses of the samples showed that fish were the most frequent and important prey by number, followed by crustaceans and molluscs. The three fish species inhabiting Rosario Lake were represented in the diet which suggests that this bird is a generalist feeder. However, cormorants positively selected for Patagonian Silverside and Rainbow Trout, which might be related to their foraging strategy and/or to the conspicuousness of potential prey. The estimated annual fish intake by cormorants at Rosario Lake ranged between 2.3-3.7 tons of fish or 16,000-26,000 individuals. The impact produced by the Neotropic Cormorant on recreational fish resources and local fish farms appears negligible.Fil: Casaux, Ricardo Jorge. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Di Prinzio, Cecilia Yanina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bertolin, María Lila. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tartara, Maria Alejandra. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWaterbird Society2009-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97817Casaux, Ricardo Jorge; Di Prinzio, Cecilia Yanina; Bertolin, María Lila; Tartara, Maria Alejandra; Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina; Waterbird Society; Waterbirds; 32; 3; 9-2009; 444-4491524-4695CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/waterbirds/volume-32/issue-3/063.032.0310/Diet-of-the-Neotropic-Cormorant-iPhalacrocorax-olivaceus-i-at-West/10.1675/063.032.0310.shortinfo:eu-repo/semantics/altIdentifier/doi/10.1675/063.032.0310info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:45:56Zoai:ri.conicet.gov.ar:11336/97817instacron: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 14:45:57.258CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
title Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
spellingShingle Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
Casaux, Ricardo Jorge
DIET COMPOSITION
FISH INTAKE
FISH RESOURCES
IMPACT
NEOTROPIC CORMORANT
PATAGONIA
title_short Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
title_full Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
title_fullStr Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
title_full_unstemmed Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
title_sort Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina
dc.creator.none.fl_str_mv Casaux, Ricardo Jorge
Di Prinzio, Cecilia Yanina
Bertolin, María Lila
Tartara, Maria Alejandra
author Casaux, Ricardo Jorge
author_facet Casaux, Ricardo Jorge
Di Prinzio, Cecilia Yanina
Bertolin, María Lila
Tartara, Maria Alejandra
author_role author
author2 Di Prinzio, Cecilia Yanina
Bertolin, María Lila
Tartara, Maria Alejandra
author2_role author
author
author
dc.subject.none.fl_str_mv DIET COMPOSITION
FISH INTAKE
FISH RESOURCES
IMPACT
NEOTROPIC CORMORANT
PATAGONIA
topic DIET COMPOSITION
FISH INTAKE
FISH RESOURCES
IMPACT
NEOTROPIC CORMORANT
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A total of 124 pellets (regurgitated casts) produced by the Neotropic Cormorant (Phalacrocorax olivaceus) were collected monthly between January 2004 and November 2005 from a roosting site at Rosario Lake Chubut, Patagonia, Argentina. Analyses of the samples showed that fish were the most frequent and important prey by number, followed by crustaceans and molluscs. The three fish species inhabiting Rosario Lake were represented in the diet which suggests that this bird is a generalist feeder. However, cormorants positively selected for Patagonian Silverside and Rainbow Trout, which might be related to their foraging strategy and/or to the conspicuousness of potential prey. The estimated annual fish intake by cormorants at Rosario Lake ranged between 2.3-3.7 tons of fish or 16,000-26,000 individuals. The impact produced by the Neotropic Cormorant on recreational fish resources and local fish farms appears negligible.
Fil: Casaux, Ricardo Jorge. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Di Prinzio, Cecilia Yanina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bertolin, María Lila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tartara, Maria Alejandra. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description A total of 124 pellets (regurgitated casts) produced by the Neotropic Cormorant (Phalacrocorax olivaceus) were collected monthly between January 2004 and November 2005 from a roosting site at Rosario Lake Chubut, Patagonia, Argentina. Analyses of the samples showed that fish were the most frequent and important prey by number, followed by crustaceans and molluscs. The three fish species inhabiting Rosario Lake were represented in the diet which suggests that this bird is a generalist feeder. However, cormorants positively selected for Patagonian Silverside and Rainbow Trout, which might be related to their foraging strategy and/or to the conspicuousness of potential prey. The estimated annual fish intake by cormorants at Rosario Lake ranged between 2.3-3.7 tons of fish or 16,000-26,000 individuals. The impact produced by the Neotropic Cormorant on recreational fish resources and local fish farms appears negligible.
publishDate 2009
dc.date.none.fl_str_mv 2009-09
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/11336/97817
Casaux, Ricardo Jorge; Di Prinzio, Cecilia Yanina; Bertolin, María Lila; Tartara, Maria Alejandra; Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina; Waterbird Society; Waterbirds; 32; 3; 9-2009; 444-449
1524-4695
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97817
identifier_str_mv Casaux, Ricardo Jorge; Di Prinzio, Cecilia Yanina; Bertolin, María Lila; Tartara, Maria Alejandra; Diet of the Neotropic Cormorant Phalacrocorax olivaceus at West Chubut, Patagonia, Argentina; Waterbird Society; Waterbirds; 32; 3; 9-2009; 444-449
1524-4695
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://bioone.org/journals/waterbirds/volume-32/issue-3/063.032.0310/Diet-of-the-Neotropic-Cormorant-iPhalacrocorax-olivaceus-i-at-West/10.1675/063.032.0310.short
info:eu-repo/semantics/altIdentifier/doi/10.1675/063.032.0310
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Waterbird Society
publisher.none.fl_str_mv Waterbird Society
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 13.22299

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