The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula, was investigated by the analysis of 105 and 39 faeces collected at beaches surrounding Cierva Point during January–March 1998 and 2000, respectively. The diet was diverse and composed of both pelagic and be...
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ftunivlaplata:oai:sedici.unlp.edu.ar:10915/132480 2023-05-15T14:01:55+02:00 The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula Casaux, Ricardo Jorge Baroni, A. Ramón, Analía Inés 2006 application/pdf 257-262 http://sedici.unlp.edu.ar/handle/10915/132480 en eng http://sedici.unlp.edu.ar/handle/10915/132480 issn:0722-4060 issn:1432-2056 http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) CC-BY-NC-SA Biología Antarctic Peninsula Fish Prey South Shetland Island Antarctic Krill Weddell Seal Articulo 2006 ftunivlaplata 2022-03-20T01:06:31Z The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula, was investigated by the analysis of 105 and 39 faeces collected at beaches surrounding Cierva Point during January–March 1998 and 2000, respectively. The diet was diverse and composed of both pelagic and benthic-demersal organisms. Fish, followed by cephalopods, constituted the bulk of the diet by number and mass. Among fish, Pleuragramma antarcticum, Chaenodraco wilsoni and Gobionotothen gibberifrons were the dominant fish by mass in 1998, whereas Chionodraco rastrospinosus, P. antarcticum and C. wilsoni predominated by mass in 2000. The contribution of channichthyid species to the diet of seals at the Danco Coast was higher than previously reported. Besides those species, the myctophid Electrona antarctica was also an important prey by number in the diet of seals in both summer seasons. The results are compared with information from other study areas and the possibility of using information on the diet of this seal as a gross indicator of fish availability/distribution is considered. Facultad de Ciencias Médicas Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Weddell Seal Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual) Antarctic Antarctic Peninsula Cierva ENVELOPE(-60.873,-60.873,-64.156,-64.156) Cierva Point ENVELOPE(-60.967,-60.967,-64.150,-64.150) Danco ENVELOPE(-61.033,-61.033,-64.717,-64.717) Danco Coast ENVELOPE(-62.000,-62.000,-64.700,-64.700) Weddell |
institution |
Open Polar |
collection |
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual) |
op_collection_id |
ftunivlaplata |
language |
English |
topic |
Biología Antarctic Peninsula Fish Prey South Shetland Island Antarctic Krill Weddell Seal |
spellingShingle |
Biología Antarctic Peninsula Fish Prey South Shetland Island Antarctic Krill Weddell Seal Casaux, Ricardo Jorge Baroni, A. Ramón, Analía Inés The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
topic_facet |
Biología Antarctic Peninsula Fish Prey South Shetland Island Antarctic Krill Weddell Seal |
description |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula, was investigated by the analysis of 105 and 39 faeces collected at beaches surrounding Cierva Point during January–March 1998 and 2000, respectively. The diet was diverse and composed of both pelagic and benthic-demersal organisms. Fish, followed by cephalopods, constituted the bulk of the diet by number and mass. Among fish, Pleuragramma antarcticum, Chaenodraco wilsoni and Gobionotothen gibberifrons were the dominant fish by mass in 1998, whereas Chionodraco rastrospinosus, P. antarcticum and C. wilsoni predominated by mass in 2000. The contribution of channichthyid species to the diet of seals at the Danco Coast was higher than previously reported. Besides those species, the myctophid Electrona antarctica was also an important prey by number in the diet of seals in both summer seasons. The results are compared with information from other study areas and the possibility of using information on the diet of this seal as a gross indicator of fish availability/distribution is considered. Facultad de Ciencias Médicas |
format |
Article in Journal/Newspaper |
author |
Casaux, Ricardo Jorge Baroni, A. Ramón, Analía Inés |
author_facet |
Casaux, Ricardo Jorge Baroni, A. Ramón, Analía Inés |
author_sort |
Casaux, Ricardo Jorge |
title |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
title_short |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
title_full |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
title_fullStr |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
title_full_unstemmed |
The diet of the Weddell Seal Leptonychotes weddellii at the Danco Coast, Antarctic Peninsula |
title_sort |
diet of the weddell seal leptonychotes weddellii at the danco coast, antarctic peninsula |
publishDate |
2006 |
url |
http://sedici.unlp.edu.ar/handle/10915/132480 |
long_lat |
ENVELOPE(-60.873,-60.873,-64.156,-64.156) ENVELOPE(-60.967,-60.967,-64.150,-64.150) ENVELOPE(-61.033,-61.033,-64.717,-64.717) ENVELOPE(-62.000,-62.000,-64.700,-64.700) |
geographic |
Antarctic Antarctic Peninsula Cierva Cierva Point Danco Danco Coast Weddell |
geographic_facet |
Antarctic Antarctic Peninsula Cierva Cierva Point Danco Danco Coast Weddell |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Weddell Seal |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Weddell Seal |
op_relation |
http://sedici.unlp.edu.ar/handle/10915/132480 issn:0722-4060 issn:1432-2056 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
op_rightsnorm |
CC-BY-NC-SA |
_version_ |
1766271989934194688 |