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By: Tupinambás, Taynan H. - Pompeu, PS. - Gandini, Cíntia Veloso - Hughes, RM. - Callisto, MarcosType: ArticleIn: Instituto Internacional de EcologiaVolume:Series:Issue:Date: 2015-03-01Page Range:Publication Info: Instituto Internacional de EcologiaSubjects: bioindicators fish stomach contents Habitats large rivers sampling trophic interactions