Comparação parasitológica Hoplias malabaricus (Bloch, 1794) (traíras) oriundas de ambiente natural e artificial na região de Dourados - MS

Abstract

Studies on parasites and other pathogens in aquatic organisms have considerable relevance, especially in hosts that are consumed by humans. No study characterizing the Hoplias malabaricus (traíra) parasites in the Dourados-MS region has been done so far, despite the importance of the species in fish consumption in the region. In addition, information on parasite differences between fish manipulated ecosystem and natural ecosystem is also missing. The study identified and compared the prevalence and intensity of traíra parasites Hoplias malabaricus from natural ecosystem and manipulated ecosystem. Thirty-five fish were evaluated, analyzing eyes, gills, mucus, musculature and intestine. Among these fish, 14 were fish from manipulated ecosystem and 21 fish were from natural ecosystem. A total of 361 parasites were found: 77 monogens, 5 trichodines, 225 digeneas, 23 nematodas, 1 Estrongylides sp. and 26 Contracaecum sp.. It is noteworthy that the nematodes Estrongylides sp. and Contracaecum sp. are zoonotic.