The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the most frequ...
Published in: | Antarctic Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/96210 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/96210 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/96210 2023-10-09T21:46:13+02:00 The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula Casaux, Ricardo Jorge Baroni, A. Ramón, A. Bertolin, María Lila Di Prinzio, Cecilia Yanina application/pdf http://hdl.handle.net/11336/96210 eng eng Cambridge University Press info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/diet-of-postbreeding-antarctic-shags-phalacrocorax-bransfieldensis-at-the-danco-coast-antarctic-peninsula/6391E4DDB4D97DFDCE131FC4120BCFB2 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102009001746 http://hdl.handle.net/11336/96210 Casaux, Ricardo Jorge; Baroni, A.; Ramón, A.; Bertolin, María Lila; Di Prinzio, Cecilia Yanina; The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula; Cambridge University Press; Antarctic Science; 21; 3; 6-2009; 221-227 0954-1020 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTICA GOBBIONOTOTEN NOTOTHENIA POSTBREEDING https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1017/S0954102009001746 2023-09-24T18:38:04Z The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the most frequent and important prey at all the colonies sampled, followed by octopods and gastropods. Amongst the fish, Notothenia coriiceps and Gobionotothen gibberifrons were the main prey in all of the sampling sites in both seasons. The composition of the diet of post-breeding shags differed from that observed in the previous breeding season. Post-breeders preyed on the same fish species consumed by breeders, although in different proportions and on larger specimens. The information provided here differs from that reported for post-breeding individuals belonging to other shag species and also for post-breeding Antarctic shags. Our results, as well as the differences with previous studies, are discussed in relation to differences in prey availability among localities and to the use of alternative foraging grounds at the end of the breeding period. Fil: Casaux, Ricardo Jorge. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Baroni, A. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Ramón, A. Municipalidad de Esquel. Subsecretaría de Medioambiente; Argentina Fil: Bertolin, María Lila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Di Prinzio, Cecilia Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Argentino Argentina Ricardo ENVELOPE(-63.033,-63.033,-64.867,-64.867) Danco ENVELOPE(-61.033,-61.033,-64.717,-64.717) Danco Coast ENVELOPE(-62.000,-62.000,-64.700,-64.700) Antarctic Science 21 3 221 227 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTICA GOBBIONOTOTEN NOTOTHENIA POSTBREEDING https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTICA GOBBIONOTOTEN NOTOTHENIA POSTBREEDING https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Casaux, Ricardo Jorge Baroni, A. Ramón, A. Bertolin, María Lila Di Prinzio, Cecilia Yanina The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
topic_facet |
ANTARCTICA GOBBIONOTOTEN NOTOTHENIA POSTBREEDING https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 399 pellets (regurgitated casts) collected during February and March 1998 and 2000. Overall, demersal-benthic fish were the most frequent and important prey at all the colonies sampled, followed by octopods and gastropods. Amongst the fish, Notothenia coriiceps and Gobionotothen gibberifrons were the main prey in all of the sampling sites in both seasons. The composition of the diet of post-breeding shags differed from that observed in the previous breeding season. Post-breeders preyed on the same fish species consumed by breeders, although in different proportions and on larger specimens. The information provided here differs from that reported for post-breeding individuals belonging to other shag species and also for post-breeding Antarctic shags. Our results, as well as the differences with previous studies, are discussed in relation to differences in prey availability among localities and to the use of alternative foraging grounds at the end of the breeding period. Fil: Casaux, Ricardo Jorge. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Baroni, A. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina Fil: Ramón, A. Municipalidad de Esquel. Subsecretaría de Medioambiente; Argentina Fil: Bertolin, María Lila. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Di Prinzio, Cecilia Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
format |
Article in Journal/Newspaper |
author |
Casaux, Ricardo Jorge Baroni, A. Ramón, A. Bertolin, María Lila Di Prinzio, Cecilia Yanina |
author_facet |
Casaux, Ricardo Jorge Baroni, A. Ramón, A. Bertolin, María Lila Di Prinzio, Cecilia Yanina |
author_sort |
Casaux, Ricardo Jorge |
title |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_short |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_full |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_fullStr |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_full_unstemmed |
The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula |
title_sort |
diet of post-breeding antarctic shags phalacrocorax bransfieldensis at the danco coast, antarctic peninsula |
publisher |
Cambridge University Press |
url |
http://hdl.handle.net/11336/96210 |
long_lat |
ENVELOPE(-63.033,-63.033,-64.867,-64.867) ENVELOPE(-61.033,-61.033,-64.717,-64.717) ENVELOPE(-62.000,-62.000,-64.700,-64.700) |
geographic |
Antarctic Antarctic Peninsula Argentino Argentina Ricardo Danco Danco Coast |
geographic_facet |
Antarctic Antarctic Peninsula Argentino Argentina Ricardo Danco Danco Coast |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/diet-of-postbreeding-antarctic-shags-phalacrocorax-bransfieldensis-at-the-danco-coast-antarctic-peninsula/6391E4DDB4D97DFDCE131FC4120BCFB2 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102009001746 http://hdl.handle.net/11336/96210 Casaux, Ricardo Jorge; Baroni, A.; Ramón, A.; Bertolin, María Lila; Di Prinzio, Cecilia Yanina; The diet of post-breeding Antarctic shags Phalacrocorax bransfieldensis at the Danco Coast, Antarctic Peninsula; Cambridge University Press; Antarctic Science; 21; 3; 6-2009; 221-227 0954-1020 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1017/S0954102009001746 |
container_title |
Antarctic Science |
container_volume |
21 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
227 |
_version_ |
1779321862697779200 |