Behavioral changes caused by Austrodiplostomum spp. in Hoplias malabaricus from the Sao Francisco River, Brazil

Behavioral changes caused by Austrodiplostomum spp. in Hoplias malabaricus from the Sao Francisco River, Brazil

Author Correa, Lincoln L. Google Scholar
Souza, Geza T. R. Google Scholar
Takemoto, Ricardo M. Google Scholar
Ceccarelli, Paulo S. Google Scholar
Adriano, Edson A. Autor UNIFESP Google Scholar
Institution Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual de Maringá (UEM)
Inst Chico Mendes Conservacao Biodiversidade ICMb
Universidade Federal de São Paulo (UNIFESP)
Abstract Traira (Hoplias malabaricus) is a neotropical fish that is widely distributed in freshwater environments in South America. in the present study, we documented the occurrence of metacercariae of Austrodiplostomum spp. (Diplostomidae) in the eyes and cranial cavity of H. malabaricus and described parasite-induced behavioral changes in the host. the fish were collected from the upper Sao Francisco River, in the Serra da Canastra mountain range, Minas Gerais, transported alive to the laboratory, observed for 2 weeks, and subsequently examined for parasites. of the 35 fish examined, 28 (80 %) had free metacercariae in the vitreous humor (mean intensity=95.4; mean abundance=76.3), and 24 (68.57 %) had free metacercariae in the cranial cavity, mainly concentrated below the floor of the brain, at the height of the ophthalmic lobe (mean intensity=12.91; mean abundance=8.85). Specimens of H. malabaricus with a high intensity of infection in the brain displayed changes in swimming behavior.
Language English
Sponsor Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Grant number CAPES: 69/2010-UNICAMP
Date 2014-02-01
Published in Parasitology Research. New York: Springer, v. 113, n. 2, p. 499-503, 2014.
ISSN 0932-0113 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 499-503
Origin http://dx.doi.org/10.1007/s00436-013-3679-6
Access rights Closed access
Type Article
Web of Science ID WOS:000333028100006
URI http://repositorio.unifesp.br/handle/11600/37358

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