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Revista de biología marina y oceanografía

On-line version ISSN 0718-1957

Abstract

CURSACH, Jaime A.; SUAZO, Cristián G.  and  RAU, Jaime R.. Predation of South American sea lion Otaria flavescens on Southern Rockhopper penguin Eudyptes c. chrysocome in Gonzalo Island, Diego Ramírez, southernmost Chile. Rev. biol. mar. oceanogr. [online]. 2014, vol.49, n.2, pp.373-377. ISSN 0718-1957.  http://dx.doi.org/10.4067/S0718-19572014000200016.

During the summer season 2010-2011 was studied the predation of Otaria flavescens on Eudyptes chrysocome chrysocome in Gonzalo Island (56°31'S; 68°42'W), Diego Ramírez archipelago, southern Chile. In total, 75 attacks of sea lion on penguins were recorded, from which 34 (45.3%) corresponded to successful attacks and kill of penguins. Among recorded behaviors during attacks, we highlight: i) persecutions during penguin's swimming, ii) persecutions at land and iii) surprise attacks under water. We identified a bird assemblage associated to predation events, dominated by Macronectes giganteus.

Keywords : Attacks; behavior; sub-Antarctic Islands.

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