Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island
The diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, was investigated at Stranger Point, King George Island, through the analysis of scats during three consecutive summer seasons (1996, 1997, 1998). Overall, fish and krill were the most frequent prey occurring, respectively, in...
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ftconicet:oai:ri.conicet.gov.ar:11336/135116 2023-10-09T21:45:53+02:00 Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island Daneri, Gustavo Adolfo Carlini, A. R. Harrington, Ana Balboni, Leandro Hernandez, C.M. application/pdf http://hdl.handle.net/11336/135116 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s00300-008-0475-3 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-008-0475-3 http://hdl.handle.net/11336/135116 Daneri, Gustavo Adolfo; Carlini, A. R.; Harrington, Ana; Balboni, Leandro; Hernandez, C.M.; Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island; Springer; Polar Biology; 31; 11; 10-2008; 1365-1372 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ARCTOCEPHALUS GAZELLA DIET ENSO SOUTH SHETLAND ISLANDS 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/10.1007/s00300-008-0475-3 2023-09-24T19:14:57Z The diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, was investigated at Stranger Point, King George Island, through the analysis of scats during three consecutive summer seasons (1996, 1997, 1998). Overall, fish and krill were the most frequent prey occurring, respectively, in an average of 82.9% and 78.8% of samples (n = 131), followed by penguins (22.8%) and cephalopods (17.8%). Myctophids constituted almost 90% of the fish predated, with Electrona antarctica and Gymnoscopelus nicholsi being the most abundant and frequent species consumed. All fish taxa identified were krill feeding species suggesting that seals foraged mainly on a krill and a fish community associated with krill aggregations. However, a seasonal change was observed in the relative proportions of the different prey taxa, with a progressive decrease with time in the occurrence of krill and a concomitant increase of fish, penguins and squid. Possible influence of the strong 1997/98 ENSO event is discussed. Fil: Daneri, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Carlini, A. R. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Harrington, Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Balboni, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Antarctica Arctocephalus gazella Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology South Shetland Islands CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) Antarctic Argentina Argentino Gustavo ENVELOPE(-62.917,-62.917,-64.833,-64.833) isla 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) King George Island Raúl ENVELOPE(-65.700,-65.700,-68.167,-68.167) San Martín ENVELOPE(-67.133,-67.133,-68.117,-68.117) South Shetland Islands Stranger Point ENVELOPE(-58.618,-58.618,-62.262,-62.262) Polar Biology 31 11 1365 1372 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ARCTOCEPHALUS GAZELLA DIET ENSO SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ARCTOCEPHALUS GAZELLA DIET ENSO SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Daneri, Gustavo Adolfo Carlini, A. R. Harrington, Ana Balboni, Leandro Hernandez, C.M. Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
topic_facet |
ARCTOCEPHALUS GAZELLA DIET ENSO SOUTH SHETLAND ISLANDS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, was investigated at Stranger Point, King George Island, through the analysis of scats during three consecutive summer seasons (1996, 1997, 1998). Overall, fish and krill were the most frequent prey occurring, respectively, in an average of 82.9% and 78.8% of samples (n = 131), followed by penguins (22.8%) and cephalopods (17.8%). Myctophids constituted almost 90% of the fish predated, with Electrona antarctica and Gymnoscopelus nicholsi being the most abundant and frequent species consumed. All fish taxa identified were krill feeding species suggesting that seals foraged mainly on a krill and a fish community associated with krill aggregations. However, a seasonal change was observed in the relative proportions of the different prey taxa, with a progressive decrease with time in the occurrence of krill and a concomitant increase of fish, penguins and squid. Possible influence of the strong 1997/98 ENSO event is discussed. Fil: Daneri, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Carlini, A. R. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Harrington, Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Balboni, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina ... |
format |
Article in Journal/Newspaper |
author |
Daneri, Gustavo Adolfo Carlini, A. R. Harrington, Ana Balboni, Leandro Hernandez, C.M. |
author_facet |
Daneri, Gustavo Adolfo Carlini, A. R. Harrington, Ana Balboni, Leandro Hernandez, C.M. |
author_sort |
Daneri, Gustavo Adolfo |
title |
Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
title_short |
Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
title_full |
Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
title_fullStr |
Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
title_full_unstemmed |
Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island |
title_sort |
interannual variation in the diet of non-breeding male antarctic fur seals, arctocephalus gazella, at isla 25 de mayo/king george island |
publisher |
Springer |
url |
http://hdl.handle.net/11336/135116 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-62.917,-62.917,-64.833,-64.833) ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-65.700,-65.700,-68.167,-68.167) ENVELOPE(-67.133,-67.133,-68.117,-68.117) ENVELOPE(-58.618,-58.618,-62.262,-62.262) |
geographic |
25 de Mayo Antarctic Argentina Argentino Gustavo isla 25 de Mayo King George Island Raúl San Martín South Shetland Islands Stranger Point |
geographic_facet |
25 de Mayo Antarctic Argentina Argentino Gustavo isla 25 de Mayo King George Island Raúl San Martín South Shetland Islands Stranger Point |
genre |
Antarc* Antarctic Antarctic Fur Seals Antarctica Arctocephalus gazella Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Antarctica Arctocephalus gazella Dirección Nacional del Antártico Instituto Antártico Argentino Isla 25 de Mayo King George Island Polar Biology South Shetland Islands |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s00300-008-0475-3 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-008-0475-3 http://hdl.handle.net/11336/135116 Daneri, Gustavo Adolfo; Carlini, A. R.; Harrington, Ana; Balboni, Leandro; Hernandez, C.M.; Interannual variation in the diet of non-breeding male Antarctic fur seals, Arctocephalus gazella, at Isla 25 de Mayo/King George Island; Springer; Polar Biology; 31; 11; 10-2008; 1365-1372 0722-4060 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/10.1007/s00300-008-0475-3 |
container_title |
Polar Biology |
container_volume |
31 |
container_issue |
11 |
container_start_page |
1365 |
op_container_end_page |
1372 |
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1779321550274560000 |