Brazilian catfish parasitized by Epistylis sp. (Ciliophora, Epistylididae), with description of parasite intensity score
Nenhuma Miniatura disponível
Data
2013-01-01
Autores
De Pádua, Santiago Benites [UNESP]
Ishikawa, Márcia Mayumi
Ventura, Arlene Sobrinho
Jerônimo, Gabriela Tomas
Martins, Maurício Laterça
Tavares, Luiz Eduardo Roland
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The determination of mean intensity of parasitism for colony-forming sessile protozoan such as Epistylis has been a great problem in parasitological studies. Some alternatives have been proposed by researchers for laboratory and field conditions. This study describes the criteria to establish the parasitic intensity score for epistylidid infestation in fish. Parasite distribution and the host-parasite relationship in four species of Brazilian cultured catfish and their hybrids are discussed. The highest prevalence rates were found in the hybrid jundiara, Leiarius marmoratus male × Pseudoplatystoma reticulatum female (96.4 %), followed by jurupoca, Hemisorubim platyrhynchos (60 %), and the hybrid surubim, Pseudoplatystoma corruscans male × P. reticulatum female (52.7 %). Positive correlation between parasitic intensity score and the fish size, weight, and relative condition factor were also observed. These findings indicate that Epistylis infestation in Brazilian catfish is an emerging disease in cultured fish. © 2012 Springer-Verlag.
Descrição
Palavras-chave
body surface, Brazil, catfish, ciliate infection, Epistylis infection, female, Hemisorubim platyrhynchos, host parasite interaction, Leiarius marmoratus, male, nonhuman, parasite load, priority journal, Pseudoplatystoma corruscans, Pseudoplatystoma reticulatum, scoring system, species distribution, Animals, Body Weight, Catfishes, Ciliophora Infections, Female, Fish Diseases, Male, Oligohymenophorea, Parasite Load, Ciliophora, Epistylis, Protozoa, Pseudoplatystoma
Como citar
Parasitology Research, v. 112, n. 1, p. 443-446, 2013.