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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Detalles Bibliográficos
Autores principales: Casaux, Ricardo Jorge, Baroni, A., Ramón, Analía Inés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Biología
Antarctic Peninsula
Fish Prey
South Shetland Island
Antarctic Krill
Weddell Seal
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132480
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132480
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
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.
format Articulo
Articulo
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
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