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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 91, No. 3, 1996, pp. 301-306
Bioline Code: oc96060
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 91, No. 3, 1996, pp. 301-306

 en Parasites of the Flatfish Paralichthys adspersus (Steindachner, 1867) (Pleuronectiformes) from Northern Chile
Oliva, Marcelo E; Castro, Raul E & Burgos, Rodrigo

Abstract

Three species of protistan and 22 species of metazoan parasites were
obtained from a sample of 179 flatfish, (Paralichthys adspersus) taken-off
Antofagasta, northern Chile. Prevalence of infection of seven parasites
(Protista: 1, Copepoda: 2, Digenea: 1, Acantocephala: 1, Nematoda: 2) was
significantly and positively correlated with host size. Host's sex do not
seem to affect prevalence of infection, except for Nybelinia surmenicola,
Capillaria sp. and Anisakis sp. (prevalence of infection significantly
greater in males than  females) and Philometra sp. (prevalence higher in
females). Mean abundance is correlated with size in nine species (Protista:
1, Copepoda: 2, Digenea: 3, Acantocephala: 1, Nematoda: 2). Host's sex do
not affect mean abundance, except for Cainocreadium sp. and  Philometra
sp.(mean abundance higher in females) and Nybelinia surmenicola, Capillaria
sp. and Anisakis sp. (mean abundance higher in males).

Keywords
parasites - marine fishes - ecology - northern Chile

 
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