INVESTIGADORES
CASAUX Ricardo Jorge
congresos y reuniones científicas
Título:
The diet of the Antarctic fur seal Arctocephalus gazella at the Danco Coast, Antarctic Peninsula
Autor/es:
CASAUX R.; BARONI A.; RAMÓN A.
Reunión:
Workshop; The CCAMLR Ecosystem Monitoring and Management Working Group; 2002
Resumen:
The diet of non-breeding male Antarctic fur seals Arctocephalus gazella was investigated
at the Danco Coast, Antarctic Peninsula, by the analysis of 31 and 149 scats collected from January to March 1998 and 2000 respectively. Overall fish and krill, followed by penguins and squids, were the most
frequent prey and constituted the bulk of the diet. The importance of the remaining taxa represented in the samples (octopods, gastropods, bivalves,
isopods, polychaetes and porifera) was
negligible. Among fish, Channichthyids constituted the bulk of
the diet with Chionodraco rastrospinosus
and Chaenodraco wilsoni, followed by
the Nototheniid Pleuragramma antarcticum,
being the main prey. The Myctophid Electrona
antarctica was the most frequent and numerous fish prey. The results are
discussed and compared with those reported for the South Shetland Islands, the
closest area from where similar information is available.