title: Metazoan endoparasites of Pygocentrus nattereri (Characiformes: Serrasalminae) in the Negro River, Pantanal, Brazil.
abstract: In the period of October 2007 to August 2008, 152 specimens of Pygocentrus nattereri were caught in the Negro River in the Nhecolândia region, central Pantanal wetland, State of Mato Grosso do Sul, Brazil. The specimens were necropsied and a total of 4,212 metazoan endoparasites were recovered, belonging to 10 taxons: Procamallanus (Spirocamallanus) inopinatus, Philometridae gen. sp., Eustrongylides sp., Brevimulticaecum sp., Contracaecum sp. (Nematoda), Echinorhynchus paranensis (Acanthocephala), Leiperia gracile, Sebekia oxycephala, Subtriquetra sp. 1 and Subtriquetra sp. 2 (Pentastomida). This is the first record of two parasite species from P. nattereri: E. paranensis and L. gracile.
authors.affiliation: Universidade Federal de Mato Grosso do Sul, Programa de Pós-graduação em Ecologia e Conservação, Campo GrandeMS, Brasil.
authors.forename: Wagner
authors.initials: W
authors.lastname: Vicentin
authors.forename: Kelly Regina Ibarrola
authors.initials: KR
authors.lastname: Vieira
authors.forename: Luiz Eduardo Roland
authors.initials: LE
authors.lastname: Tavares
authors.forename: Fábio Edir dos Santos
authors.initials: FE
authors.lastname: Costa
authors.forename: Ricardo Massato
authors.initials: RM
authors.lastname: Takemoto
authors.forename: Fernando
authors.initials: F
authors.lastname: Paiva
mesh_terms: D000818:Animals; D001938:Brazil; D060125:Characiformes / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology*; D006376:Helminths / Q000302:isolation & purification*; D008855:Microscopy, Electron, Scanning; D045483:Rivers