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By: Almeida, VLS. - Dantas, Ênio Wocyli - Melo-Júnior, M. - Bittencourt-Oliveira, Maria do Carmo. - Moura, AN.Type: ArticleIn: Instituto Internacional de EcologiaVolume:Series:Issue:Date: 2009-02-01Page Range:Publication Info: Instituto Internacional de Ecologia 2009-02-01Subjects: diversity Northeast Brazil Reservoirs Trophic Index State Zooplankton