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Type: Artigo
Title: Trypanosomatids (protozoa: Kinetoplastida) In Three Species Of Armored Catfish From Mogi-guaçu River, Pirassununga, São Paulo, Brazil
Title Alternative: Tripanossomatídeos (protozoa: Kinetoplastida) Em Três Espécies De Cascudos Do Rio Mogi-guaçu, Pirassununga, São Paulo, Brasil
Author: Molina
Julia Pereira; Madi
Rubens Riscala; Solferini
Vera Nisaka; Ceccarelli
Paulo Sérgio; Pinheiro
Hildete Prisco; Ueta
Marlene Tiduko
Abstract: Trypanosome infections have been reported in several species of fish, in majority of cases described on the basis of morphological characteristics. Trypanosomes in fish are heteroxenous and transmitted by hirudineans. This study aims to evaluate the prevalence and density of infections by Trypanosoma sp. in blood from three species of catfish, Hypostomus regani, H. strigaticeps, H. albopunctatus, from the Mogi Guaçu River, Pirassununga, São Paulo, Brazil. Further, this study intends to characterize the Trypanosoma specimens found in the blood of these fish by morphological and molecular techniques. The trypanosomes overall prevalence observed was 47.6% with a general average density of 0.75 parasites/µl of blood. Hypostomus regani and Hypostomus strigaticeps showed a significant difference in prevalence. The average densities of parasites were not significantly different among the three fish species. Similar findings were observed for the monthly variations in densities. The parasites found in the three species of catfish studied showed similar morphological characteristics. The morphological data and the statistical analyses used in this study didn’t show the formation of groups. The analyses provided evidence of the presence of pleomorphisms in the trypanosomes found in the three studied fish.
Subject: Trypanosoma
Editor: Colégio Brasileiro de Parasitologia Veterinária
Rights: aberto
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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