Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/201727
Type: Artigo de periódico
Title: Behavioral Changes Caused By Austrodiplostomum Spp. In Hoplias Malabaricus From The São Francisco River, Brazil.
Author: Corrêa, Lincoln L
Souza, Geza T R
Takemoto, Ricardo M
Ceccarelli, Paulo S
Adriano, Edson A
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 São 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.
Subject: Animals
Behavior, Animal
Brain Diseases
Brazil
Central Nervous System Helminthiasis
Characiformes
Eye
Eye Infections, Parasitic
Fish Diseases
Metacercariae
Rivers
Swimming
Trematoda
Trematode Infections
Rights: fechado
Identifier DOI: 10.1007/s00436-013-3679-6
Address: http://www.ncbi.nlm.nih.gov/pubmed/24248631
Date Issue: 2014
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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