Rev. biol. mar. oceanogr. 49(2): 373-377

Nota Científica

Depredación del lobo marino común Otaria flavescens sobre el pingüino de penacho amarillo Eudyptes c. chrysocome en isla Gonzalo, Diego Ramírez, sur de Chile

Jaime A. Cursach^1,2,3, Cristián G. Suazo⁴ y Jaime R. Rau^1,2,5

¹Programa de Doctorado en Ciencias mención Conservación y Manejo de Recursos Naturales, Universidad de Los Lagos, casilla 557, Puerto Montt, Chile

²Laboratorio de Ecología, Departamento de Ciencias Biológicas y Biodiversidad, Universidad de Los Lagos, casilla 933, Osorno, Chile

³Laboratorio de Investigación Socioambiental, Programa ATLAS, Departamento de Ciencias Sociales, Universidad de Los Lagos, casilla 933, Osorno, Chile

⁴Albatross Task Force - Chile, BirdLife International

⁵Programa IBAM, Universidad de Los Lagos, casilla 933, Osorno, Chile

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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.

Key words:  Attacks, behavior, sub-Antarctic Islands