Presença de parasitos em peixes do rio São Bartolomeu no município de Cristalina-Goiás, Brasil

Abstract

INTRODUCTION: Fish represent the largest number of species known among vertebrates. Fish disease has become a problem in Brazilian fish farming. Most parasitic carriers are asymptomatic. OBJECTIVE: To verify the incidence of parasites in Sao Bartolomeu river fish.MATERIALS AND METHODS: Samples were collected from 6 species of fish and 2 sample types. Intestinal content and parasites found in the mouth and gills, with one pot designated for each species. RESULTS AND DISCUSSION:Diagnoses made using the Hoffman method, 40% were positive for one or more parasite species, 20% (1/5) positive for Entamoeba coli, 20% (1/5) positive for Iodamoeba bütschlii, and 60% (3/5) no parasites were present in the intestinal contents. Diagnoses made through oral and gill analyzes (Table 3), 16.6% were positive for one type of parasite, 16.6% (1/6) positive for tongue-eating louse, 83.4% (5)./6) negative for other parasites in gills and branchiae.CONCLUSION:Results show that there is a possible contamination of some fish species.Reflections of this can be seen by examine the data.