Data/hora: 01/06/2024 09:53:30

Biblioteca(s): | Epagri-Sede.
Data corrente: | 21/08/2015
Data da última atualização: | 21/08/2015
Autoria: | TANCREDO, K. R.; MARCHIORI, N. C.; ROUMBEDAKIS, K.; CERQUEIRA, V. R.; TAVARES-DIAS, M.; MARTINS, M. L.
Título: | Observations on parasite fauna of Centropomus undecimalis and C. parallelus (Perciformes) bred in southern Brazil, and its possible influence on the welfare of fishes.
Ano de publicação: | 2015
Fonte/Imprenta: | Pan-American Journal of Aquatic Sciences , Montevideo, v. 10, n. 2, p. 116-121, 2015.
Idioma: | Inglês

Conteúdo:

The metazoan parasite fauna of snooks, Centropomus parallelus and Centropomus
undecimalis, cultured in southern Brazil and parasite?s influence on the relative condition factor
(Kn), are investigated. Snooks were parasitized by two species of gill monogeneans belonging
to Rhabdosynochus (Diplectanidae) genus and by one endoparasitic digenean species
Acanthocollaritrema umbilicatum (Acanthocollaritrematidae). Centropomus parallelus and C.
undecimalis showed similar prevalence rates of Rhabdosynochus spp., but greater mean
intensity and abundance rates were found in C. parallelus. On the other hand, there was no
significant difference on prevalence, mean intensity and abundance of A. umbilicatum for both
hosts. The mean abundance of Rhabdosynochus spp. decreased as the hosts¿ length and weight
increased. Since the most parasitized fish species, C. parallelus, had lower weight than expected
(Kn<1.0), the fact suggested that gill monogeneans might alter fish welfare. Current analysis
reports a new host and a new locality for A. umbilicatum.

Palavras-Chave: | body condition; Digenea; health; Monogenea; parasitology; snook.
Categoria do assunto: | S Ciências Biológicas
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_36647.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (99302-1) - UPC - AP - DD -  -  -  - DIS