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By: Ferreira Júnior, Paulo Dias - Castro, Paulo de Tarso AmorimType: ArticleIn: Instituto Nacional de Pesquisas da AmazôniaVolume:Series:Issue:Date: 2006-01-01Page Range:Publication Info: Instituto Nacional de Pesquisas da AmazôniaSubjects: Araguaia basin Crixás-Açu River giant Amazon River turtle nesting Podocnemis expansa