2014
DOI: 10.1590/1519-6984.08312
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The occurence of black spot disease in Astyanax aff. fasciatus(characiformes: characidae) in the Guaíba Lake basin, RS, Brazil

Abstract: Black spot disease is common in freshwater fish and is usually caused by the metacercaria stage of digenetic trematodes, normally from the Diplostomidae family. The present study evaluated the prevalence and intensity of this disease in Astyanax aff. fasciatus (Teleostei: Characiformes) in the Guaíba Lake basin (RS, Brazil), including body parts assessment and the points of sampling with higher occurrence of black spots. Fish samples were taken seasonally from December 2002 until October 2004. The samples were… Show more

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Cited by 6 publications
(2 citation statements)
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“…Trematode metacercariae infestations are common in fish and have already been observed in many freshwater species in Brazil, resulting, in most cases, in severe injuries to the hosts (Yamada, Moreira, Ceschini, Takemoto, & Pavanelli, 2008;Flores-Lopes & Thomaz, 2011;Carvalho et al, 2012;Flores-Lopes, 2014).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Trematode metacercariae infestations are common in fish and have already been observed in many freshwater species in Brazil, resulting, in most cases, in severe injuries to the hosts (Yamada, Moreira, Ceschini, Takemoto, & Pavanelli, 2008;Flores-Lopes & Thomaz, 2011;Carvalho et al, 2012;Flores-Lopes, 2014).…”
Section: Discussionmentioning
confidence: 99%
“…Although the prevalence of infection for a species can be high, it can vary between different populations of the same system without a defined pattern, suggesting that the infection can occur in any fish species and at any time of the year (Ondračková, Jurajda, & Gelnar, 2002;Quist, Bower, & Hubert, 2007;Flores-Lopes, 2014).…”
Section: Discussionmentioning
confidence: 99%