Título:	Are similar the parasite communities structure of Trachelyopterus coriaceus and Trachelyopterus galeatus (Siluriformes: Auchenipteridae) in the Amazon basin?
Autoria:	PANTOJA, W. M. de F. SILVA, L. V. F. TAVARES-DIAS, M.
Afiliação:	WANDERSON MICHEL DE FARIAS PANTOJA, UFOPA LENISE VARGAS FLORES SILVA, CPAF-AP MARCOS TAVARES-DIAS, CPAF-AP.
Ano de publicação:	2016
Referência:	Brazilian Journal of Veterinary Parasitology, Jaboticabal, v. 25, n. 1, p. 46-53, jan./mar. 2016.
Conteúdo:	The aim of this study was to compare the parasite communities in two sympatric host populations, Trachelyopterus coriaceus and Trachelyopterus galeatus, which were caught in tributary of the Amazon River in Brazil. All the specimens of T. galeatus and T. coriaceus were infected by one or more parasites, such as Ichthyophthirius multifiliis, Tripartiella tetramerii, Trichodina nobilis, Cosmetocleithrum striatuli, Contracaecum sp., Cystidicoloides sp., Dadaytremoides parauchenipteri and Gorytocephalus spectabilis. Seven species were common to both host fish, and there were 1-5 parasite species per host. In both hosts, trichodinids were dominant. Aggregate dispersion of ectoparasites and endoparasites was observed, with greater aggregation among endoparasites. Only the ectoparasites species showed differences in intensity and/or abundance. However, the parasite communities of the two hosts were taxonomically similar (99%) and characterized by high prevalence and high abundance of ectoparasites, but with low diversity, prevalence and abundance of endoparasites. Trachelyopterus galeatus, the host with the larger body size, presented greater variation of Brillouin diversity and evenness, while T. coriaceus had higher Berger-Parker dominance values and total numbers of parasites. This first study on these parasites of T. galeatus and T. coriaceus showed that the life mode, size of the hosts and the availability of infective forms of the parasites were the main factors that influenced the parasite communities structure.
Thesagro:	Parasito de animal
NAL Thesaurus:	infection
Palavras-chave:	Auchenipterid Diversity Animal parasite
Digital Object Identifier:	http://dx.doi.org/10.1590/S1984-29612016016
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPAF-AP)