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By: Sepúlveda, Maritza - Inostroza, Patricia - Pérez-Alvarez, M. José - Oliva, Doris - Moraga, RodrigoType: ArticleIn: Revista de biología marina y oceanografíaVolume:Series:Issue:Date: 2009-12-01Page Range:Publication Info:Subjects: census Chilean coast circannual rhythms Otaria byronia sea lions