Spatial distribution of foraging in female Antarctic fur seals Arctocephalus gazella in relation to oceanographic variables: a scale-dependent approach using geographic information systems - Guinet, Christophe.; Dubroca, Laurent.; Lea, Mary Anne.; Goldsworthy, Simon David.; Cherel, Yves.; Duhamel, Guy.; Bonadonna, Francesco.; Donnay, Jean-Paul. (2001)