INVESTIGADORES
GRANDI Maria Florencia
artículos
Título:
Killer whales attack on South American sea lion associated with a fishing vessel: predator and prey tactics
Autor/es:
GRANDI, M.F.; LOIZAGA DE CASTRO, R.; CRESPO, E.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 with a trawling fishery. In Argentina the predatory behaviours of killer whales and anti-predatory behaviours of South American sea lions have been described from costal based observations, but predator-prey behaviour of this species is poorly known at open waters. Here we describe a killer whale group attack on an individual sea lion, using a video recorded from a trawling vessel and an interview of the ship captain. this predator-prey behaviour represents an example of the complexity of interactions between marine mammals and fisheries along the Patagonian coast.
