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Fauna parasitária de peixes oriundos de "pesque-pague" do município de Franca, São Paulo, Brasil. I. Protozoários

Parasitic fauna of cultivated fishes in fee fishing farm of Franca, São Paulo State, Brazil. I. Protozoans

Resumo

The present work studied protozoan parasites of cultivated fishes (N = 433) from two feefishing farm situated in Franca, São Paulo, Brazil, during a period of April 1997 through March 1999. Specimens of piauçú Leporinus macrocephalus Garavello & Britski, 1988 (Anostomidae), pacu Piaractus mesopotamicus Holmberg, 1887 (Characidae) carp Cyprinus carpio Linnaeus, 1758 (Cyprinidae), Tillapia rendalli Boulenger, 1896 (Cichlidae), nile-tilapia Oreochromis niloticus Linnaeus, 1758 (Cichlidae), matrinxã Brycon cephalus Günther, 1869 (Characidae) and tambacu hybrid (male of P. mesopotamicus x female of Colossoma macropomum Cuvier, 1818) were collected. The fishes were parasitized with protozoans Ichthyophthirius multifiliis Fouquet, 1876 (Protozoa), Trichodina sp. and Piscinoodinium pillulare (Schaperclaus, 1954), Lom, 1981 (Protozoa). In the cold season (autumn and/or winter) all species of fish were infected with I. multifiliis. Higher susceptibility to Trichodina sp. was observed in L. macrocephalus, C. carpio and P. mesopotamicus compared to tambacu, B. cephalus, T. rendalli and 0. niloticus. It was not observed significant difference (P > 0.05) in the seasonal variation of Trichodina sp. and P. pillulare infection of all species. A great number of P. pillulare without significant difference (P > 0.05) was reported to L. macrocephalus, P. mesopotamicus and tambacu.

Ichthyophthirius multifiliis; freshwater fish; parasites; Piscinoodinium pillulare; Trichodina sp


Ichthyophthirius multifiliis; freshwater fish; parasites; Piscinoodinium pillulare; Trichodina sp

Fauna parasitária de peixes oriundos de "pesque-pague" do município de Franca, São Paulo, Brasil. I. Protozoários

Parasitic fauna of cultivated fishes in fee fishing farm of Franca, São Paulo State, Brazil. I. Protozoans

Marcos Tavares-DiasI; Maurício L. MartinsI; Flávio R. MoraesI,II

ILaboratório de Patologia Organismos Aquáticos, Centro de Aquicultura, Universidade Estadual Paulista. Via de Acesso Prof. Paulo Donato Castellane, 14870-000 Jaboticabal, São Paulo, Brasil. E-mail: mtavares@caunesp.unesp.br

IIDepartamento de Patologia Veterinária, FCAV, Universidade Estadual Paulista. Via de Acesso Prof. Paulo Donato Castellane, 14870-000 Jaboticabal, São Paulo, Brasil

ABSTRACT

The present work studied protozoan parasites of cultivated fishes (N = 433) from two feefishing farm situated in Franca, São Paulo, Brazil, during a period of April 1997 through March 1999. Specimens of piauçú Leporinus macrocephalus Garavello & Britski, 1988 (Anostomidae), pacu Piaractus mesopotamicus Holmberg, 1887 (Characidae) carp Cyprinus carpio Linnaeus, 1758 (Cyprinidae), Tillapia rendalli Boulenger, 1896 (Cichlidae), nile-tilapia Oreochromis niloticus Linnaeus, 1758 (Cichlidae), matrinxã Brycon cephalus Günther, 1869 (Characidae) and tambacu hybrid (male of P. mesopotamicus x female of Colossoma macropomum Cuvier, 1818) were collected. The fishes were parasitized with protozoans Ichthyophthirius multifiliis Fouquet, 1876 (Protozoa), Trichodina sp. and Piscinoodinium pillulare (Schaperclaus, 1954), Lom, 1981 (Protozoa). In the cold season (autumn and/or winter) all species of fish were infected with I. multifiliis. Higher susceptibility to Trichodina sp. was observed in L. macrocephalus, C. carpio and P. mesopotamicus compared to tambacu, B. cephalus, T. rendalli and 0. niloticus. It was not observed significant difference (P > 0.05) in the seasonal variation of Trichodina sp. and P. pillulare infection of all species. A great number of P. pillulare without significant difference (P > 0.05) was reported to L. macrocephalus, P. mesopotamicus and tambacu.

KEY WORDS: Ichthyophthirius multifiliis, freshwater fish, parasites, Piscinoodinium pillulare, Trichodina sp.

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Recebido em 13.VII.2000; aceito em 19.VI.2001.

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Datas de Publicação

  • Publicação nesta coleção
    30 Abr 2009
  • Data do Fascículo
    Jul 2001

Histórico

  • Recebido
    13 Jul 2000
  • Aceito
    19 Jun 2001
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