Original scientific paper

Parasitic infections in pirarucu fry, Arapaima gigas Schinz, 1822 (Arapaimatidae) kept in a semi-intensive fish farm in Central Amazon, Brazil

Cleusa Suzana Oliveira Araújo ; Centro Universitário Nilton Lins (UNINILTONLINS), Laboratório de Zoologia Aplicada, Manaus, AM, Brasil
Ana Lúcia Gomes ; Centro Universitário Nilton Lins (UNINILTONLINS), Laboratório de Zoologia Aplicada, Manaus, AM, Brasil
Marcos Tavares-Dias ; Embrapa Amapá. Rodovia Juscelino Kubitschek, Macapá, AP, Brasil
Sanny Maria Sampaio Andrade ; Centro Universitário Nilton Lins (UNINILTONLINS), Laboratório de Zoologia Aplicada, Manaus, AM, Brasil
Andréia Belem-Costa ; Universidade Federal do Amazonas (UFAM), Departamento de Ciências Pesqueiras ( DEPESCA), Campus Universitário, Setor Sul, Manaus, AM, Brasil
João Tito Borges ; FUCAPI, Fundação Centro de Análise, Pesquisa e Inovação Tecnológica, Manaus, Brasil
Marieta Nascimento Queiroz ; Centro Universitário Nilton Lins (UNINILTONLINS), Laboratório de Zoologia Aplicada, Manaus, AM, Brasil
Megara Barbosa ; Centro Universitário Nilton Lins (UNINILTONLINS), Laboratório de Zoologia Aplicada, Manaus, AM, Brasil

Abstract

Studies regarding parasite fauna in farmed fish are of great relevance to the knowledge of the parasites species, allowing interference in their proliferation in order to avoid epizooties and consequently, economical losses. This study was designed to investigate the prevalence and intensity of parasites in fry Arapaima gigas maintained in ponds of a semi-intensive fifi sh farm in Amazonas State, Brazil. On necropsy, 96.0% of A. gigas were found parasitized by Dawestrema cycloancistrioides, Dawestrema cycloancistrium (Monogenoidea), Trichodina sp., Ichthyobodo sp. (Protozoa), Camallanus tridentatus, Terranova serrata, Goezia spinulosa (Nematoda) and Argulidae. However, D. cycloancistrium, D. cycloancistrioides and Trichodina fariai were the parasites of greatest intensity. This study is the first to report parasitic infections in farmed A. gigas and the results indicated a high rate of infection that might lead to important changes in the health of the hosts.

Keywords

Amazon; Arapaima gigas; culture; infections; parasites

Hrčak ID:

45610

URI

https://hrcak.srce.hr/45610

Publication date:

26.10.2009.

Article data in other languages: croatian

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