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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 96, No. 8, 2001, pp. 1049-1054
Bioline Code: oc01203
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 96, No. 8, 2001, pp. 1049-1054

 en Metazoan Parasite Fauna of the Bigeye Flounder, Hippoglossina macrops check for this species in other resources , from Northern Chile. Influence of Host Age and Sex
M Teresa González; Enzo Acuña & Marcelo E Oliva

Abstract

The metazoan parasite fauna of Hippoglossina macrops check for this species in other resources (n = 123) from northern Chile (30°S) is quantitatively described for the first time, and the role of host age and sex was evaluated. Twelve parasite species were recovered, including 5 ectoparasites (2 Monogenea, 2 Copepoda and 1 Piscicolidae) and 7 endoparasites (1 Digenea, 3 Cestoda, 2 Acanthocephala, and 1 Nematoda). The copepod Holobomolochus chilensis check for this species in other resources , the monogenean Neoheterobothrium check for this species in other resources sp., the adult acanthocephalan Floridosentis check for this species in other resources sp. and the hirudinean, Gliptonobdella check for this species in other resources sp. are new geographical and host records. The most prevalent ectoparasitic species were the monogenean, Neoheterobothrium check for this species in other resources sp. and the copepod, H. chilensis. Among endoparasites, the acanthocephalans Floridosentis sp. and Corynosoma australe check for this species in other resources were most prevalent and abundant. Prevalence and mean intensity of infection for most parasitic species were not affected by host sex, however the prevalence of Floridosentis sp. was significantly greater in males. Intensity of infection was positively correlated with host age for Neoheterobothrium sp., and negatively correlated for Floridosentis sp. and H. chilensis. The helminth species richness of the host H. macrops was lower compared to related flatfishes from the Northern Hemisphere. The relationship of the helminth fauna of H. macrops, its feeding habits and ecological habitats are discussed.

Keywords
parasites, Hippoglossina macrops, flatfish, ecology, Chile

 
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