INVESTIGADORES
LOIZAGA DE CASTRO Rocio
artículos
Título:
Killer whale attacking on South American sea lion associated to a fishing vessel: predator and prey tactics
Autor/es:
GRANDI, M.F; LOIZAGA DE CASTRO, ROCÍO; CRESPO ENRIQUE A.
Revista:
LATIN AMERICAN JOURNAL OF AQUATIC RESEARCH
Editorial:
UNIV CATOLICA DE VALPARAISO
Referencias:
Lugar: Valparaíso; Año: 2012 vol. 40 p. 1072 - 1076
ISSN:
0718-560X
Resumen:
Interactions between killer whales and sea lions are widely known. This work describes the predator-prey behaviour of killer whales and South American sea lion associated to a trawling fishery. Particularly in Argentina the predatory behaviours of killer whales and anti-predatory behaviours of South American sea lions were described from land-based observations from coast, but predator-prey behaviour of these species is poorly known from open waters. Here we account of a killer whale group attacking on an individual sea lion, of a video recorded from a trawling vessel, along with an interview of the ship captain. This predator-prey behaviour represents an example on the complexity of interactions between marine mammals and fisheries along Patagonia coast.
