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dc.contributor.author
Daneri, Gustavo Adolfo
dc.contributor.author
Carlini, A. R.
dc.contributor.author
Negri, Agustina
dc.contributor.author
Allcock, A. L.
dc.contributor.author
Corbalán, A.
dc.date.available
2019-01-10T15:13:48Z
dc.date.issued
2012-04
dc.identifier.citation
Daneri, Gustavo Adolfo; Carlini, A. R.; Negri, Agustina; Allcock, A. L.; Corbalán, A.; Predation on cephalopods by Weddell seals, Leptonychotes weddellii, at Hope Bay, Antarctic Peninsula; Springer; Polar Biology; 35; 4; 4-2012; 585-592
dc.identifier.issn
0722-4060
dc.identifier.uri
http://hdl.handle.net/11336/67898
dc.description.abstract
Cephalopods play a key role in marine environments as food resources for top predators such as marine mammals and seabirds. However, detailed information on their trophic relationships with Antarctic seals is scarce. The aim of the present study was to examine the cephalopod portion of the diet of adult and subadult Weddell seals, Leptonychotes weddellii, at Hope Bay, Antarctic Peninsula, through the analysis of scats collected during three consecutive summers (2003, 2004 and 2005). Cephalopods occurred in almost 45% of the 217 samples collected during the whole period of study. A total of 662 beaks (358 upper and 304 lower) were removed from scats containing cephalopod remains (n = 93). Octopods were largely dominant in comparison with teuthoids constituting in numerical abundance over 95% of the cephalopod prey. The octopod Pareledone turqueti was the most frequent and dominant prey species representing, respectively, 57.9 and 71.1% in numbers and biomass of cephalopods consumed. Species belonging to the group of papillated Pareledone were second in importance. The results were compared with information from previous dietary studies of L. weddellii at other localities of Antarctica. Based on the examination of the cephalopod prey taxa identified in this study, it is suggested that during the study period Weddell seal individuals foraged mainly on benthic prey resources close to the coast, in inshore waters where octopods were dominant in comparison with pelagic squid. © 2011 Springer-Verlag.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Antarctic Peninsula
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Cephalopods
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Diet
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Leptonychotes
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Weddell Seals
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Otras Ciencias Biológicas
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Predation on cephalopods by Weddell seals, Leptonychotes weddellii, at Hope Bay, Antarctic Peninsula
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-09T17:49:15Z
dc.journal.volume
35
dc.journal.number
4
dc.journal.pagination
585-592
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
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
dc.description.fil
Fil: Carlini, A. R.. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Negri, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
dc.description.fil
Fil: Allcock, A. L.. University of Ireland; Irlanda
dc.description.fil
Fil: Corbalán, A.. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.journal.title
Polar Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1007/s00300-011-1104-0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00300-011-1104-0
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