Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses
The diets of marine predators are a potential source of information about range shifts in their prey. For example, the short-finned squid Illex argentinus, a commercially fished species on the Patagonian Shelf in the South Atlantic, has been reported in the diet of grey-headed, Thalassarche chrysost...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Cambridge University Press
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Online Access: | http://hdl.handle.net/11336/46974 |
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ftconicet:oai:ri.conicet.gov.ar:11336/46974 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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language |
English |
topic |
Cephalopods Albatrosses Illex Southern Ocean Trophic Interactions Thalassarche Chrisostomo Thalassarche Melanophris Diomeda Exulans Patagonian Shelf Bird Island https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Cephalopods Albatrosses Illex Southern Ocean Trophic Interactions Thalassarche Chrisostomo Thalassarche Melanophris Diomeda Exulans Patagonian Shelf Bird Island https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Seco, José Daneri, Gustavo Adolfo Ceia, Felipe R. Vieira, Rui Pedro Hill, Simeon l. Xavier, José Carlos Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
topic_facet |
Cephalopods Albatrosses Illex Southern Ocean Trophic Interactions Thalassarche Chrisostomo Thalassarche Melanophris Diomeda Exulans Patagonian Shelf Bird Island https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The diets of marine predators are a potential source of information about range shifts in their prey. For example, the short-finned squid Illex argentinus, a commercially fished species on the Patagonian Shelf in the South Atlantic, has been reported in the diet of grey-headed, Thalassarche chrysostoma; black-browed, T. melanophris; and wandering, Diomedea exulans, albatrosses breeding at Bird Island, South Georgia (54°S 28°W) in the Southern Ocean. Tracking data suggest that these birds may feed on I. argentinus while foraging in Southern Ocean waters during their breeding season. This led to the hypothesis that I. argentinus may occur south of the Antarctic Polar Front. To test this hypothesis, we used stable isotope analyses to assess the origin of I. argentinus. We compared I. argentinus beaks from the diets of the three albatross species with beaks of cephalopod species endemic to the Patagonian Shelf and others from the Southern Ocean. Our results show that I. argentinus from the diet of albatrosses at Bird Island have δ13C values in the range −18.77 to −15.28‰. This is consistent with δ13C values for Octopus tehuelchus, a typical species from the Patagonian Shelf. In contrast, Alluroteuthis antarcticus, a Southern Ocean squid, has typically Antarctic δ13C in the range −25.46 to −18.61‰. This suggests that I. argentinus originated from warmer waters of the Patagonian Shelf region. It is more likely that the albatross species obtained I. argentinus by foraging in the Patagonian Shelf region than that I. argentinus naturally occurs south of the Antarctic Polar Front. Fil: Seco, José. Universidad de Coimbra; Portugal Fil: Daneri, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales Argentina Fil: Ceia, Felipe R. Universidad de Coimbra; Portugal Fil: Vieira, Rui Pedro. Universidad de Coimbra; Portugal. Universidade de Aveiro; Portugal. University of Southampton; Reino Unido Fil: ... |
format |
Article in Journal/Newspaper |
author |
Seco, José Daneri, Gustavo Adolfo Ceia, Felipe R. Vieira, Rui Pedro Hill, Simeon l. Xavier, José Carlos |
author_facet |
Seco, José Daneri, Gustavo Adolfo Ceia, Felipe R. Vieira, Rui Pedro Hill, Simeon l. Xavier, José Carlos |
author_sort |
Seco, José |
title |
Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
title_short |
Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
title_full |
Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
title_fullStr |
Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
title_full_unstemmed |
Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses |
title_sort |
distribution of short-finned squid illex argentinus (cephalopoda: ommastrephidae) inferred from the diets of southern ocean albatrosses using stable isotope analyses |
publisher |
Cambridge University Press |
url |
http://hdl.handle.net/11336/46974 |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) ENVELOPE(-62.917,-62.917,-64.833,-64.833) |
geographic |
Antarctic Argentina Argentino Bird Island Gustavo Southern Ocean The Antarctic |
geographic_facet |
Antarctic Argentina Argentino Bird Island Gustavo Southern Ocean The Antarctic |
genre |
Antarc* Antarctic antarcticus Bird Island Diomedea exulans Southern Ocean |
genre_facet |
Antarc* Antarctic antarcticus Bird Island Diomedea exulans Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/distribution-of-shortfinned-squid-illex-argentinus-cephalopoda-ommastrephidae-inferred-from-the-diets-of-southern-ocean-albatrosses-using-stable-isotope-analyses/3B894E8D6C9DBF095B3D0F7763EC6309 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315415000752 http://hdl.handle.net/11336/46974 Seco, José; Daneri, Gustavo Adolfo; Ceia, Felipe R.; Vieira, Rui Pedro; Hill, Simeon l.; et al.; Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 96; 6; 6-2015; 1211-1215 0025-3154 1469-7769 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/S0025315415000752 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
96 |
container_issue |
6 |
container_start_page |
1211 |
op_container_end_page |
1215 |
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spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/46974 2023-10-09T21:47:05+02:00 Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses Seco, José Daneri, Gustavo Adolfo Ceia, Felipe R. Vieira, Rui Pedro Hill, Simeon l. Xavier, José Carlos application/pdf http://hdl.handle.net/11336/46974 eng eng Cambridge University Press info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/distribution-of-shortfinned-squid-illex-argentinus-cephalopoda-ommastrephidae-inferred-from-the-diets-of-southern-ocean-albatrosses-using-stable-isotope-analyses/3B894E8D6C9DBF095B3D0F7763EC6309 info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315415000752 http://hdl.handle.net/11336/46974 Seco, José; Daneri, Gustavo Adolfo; Ceia, Felipe R.; Vieira, Rui Pedro; Hill, Simeon l.; et al.; Distribution of short-finned squid Illex argentinus (Cephalopoda: Ommastrephidae) inferred from the diets of Southern Ocean albatrosses using stable isotope analyses; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 96; 6; 6-2015; 1211-1215 0025-3154 1469-7769 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Cephalopods Albatrosses Illex Southern Ocean Trophic Interactions Thalassarche Chrisostomo Thalassarche Melanophris Diomeda Exulans Patagonian Shelf Bird Island 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/S0025315415000752 2023-09-24T18:30:47Z The diets of marine predators are a potential source of information about range shifts in their prey. For example, the short-finned squid Illex argentinus, a commercially fished species on the Patagonian Shelf in the South Atlantic, has been reported in the diet of grey-headed, Thalassarche chrysostoma; black-browed, T. melanophris; and wandering, Diomedea exulans, albatrosses breeding at Bird Island, South Georgia (54°S 28°W) in the Southern Ocean. Tracking data suggest that these birds may feed on I. argentinus while foraging in Southern Ocean waters during their breeding season. This led to the hypothesis that I. argentinus may occur south of the Antarctic Polar Front. To test this hypothesis, we used stable isotope analyses to assess the origin of I. argentinus. We compared I. argentinus beaks from the diets of the three albatross species with beaks of cephalopod species endemic to the Patagonian Shelf and others from the Southern Ocean. Our results show that I. argentinus from the diet of albatrosses at Bird Island have δ13C values in the range −18.77 to −15.28‰. This is consistent with δ13C values for Octopus tehuelchus, a typical species from the Patagonian Shelf. In contrast, Alluroteuthis antarcticus, a Southern Ocean squid, has typically Antarctic δ13C in the range −25.46 to −18.61‰. This suggests that I. argentinus originated from warmer waters of the Patagonian Shelf region. It is more likely that the albatross species obtained I. argentinus by foraging in the Patagonian Shelf region than that I. argentinus naturally occurs south of the Antarctic Polar Front. Fil: Seco, José. Universidad de Coimbra; Portugal Fil: Daneri, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales Argentina Fil: Ceia, Felipe R. Universidad de Coimbra; Portugal Fil: Vieira, Rui Pedro. Universidad de Coimbra; Portugal. Universidade de Aveiro; Portugal. University of Southampton; Reino Unido Fil: ... Article in Journal/Newspaper Antarc* Antarctic antarcticus Bird Island Diomedea exulans Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Argentina Argentino Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Gustavo ENVELOPE(-62.917,-62.917,-64.833,-64.833) Southern Ocean The Antarctic Journal of the Marine Biological Association of the United Kingdom 96 6 1211 1215 |