Aspectos Ecológicos dos Parasitos de Iheringichthys labrosus (Lütken, 1874) (Siluriformes: Pimelodidae) em Reservatórios da Bacia do Rio Paraná e na Planície de Inundação do Alto Rio Paraná, Brasil
| Autor: | Sara Tatiana Moreira, Kennya Fernanda Ito, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto |
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| Rok vydání: | 2005 |
| Předmět: |
geography
geography.geographical_feature_category biology Floodplain Ecology Parasitism Zoology biology.organism_classification General Biochemistry Genetics and Molecular Biology Dactylogyridae Abundance (ecology) Pimelodus Parasite hosting General Agricultural and Biological Sciences Relative species abundance Ergasilus |
| Zdroj: | Acta Scientiarum. Biological Sciences. 27 |
| ISSN: | 1807-863X 1679-9283 |
| DOI: | 10.4025/actascibiolsci.v27i4.1265 |
| Popis: | Sixty-two specimens of Iheringichthys labrosus , captured in Rosana, Taquarucu, Salto Grande and Canoas I reservoirs, located in the Parana River basin, were necropsied. Fifty specimens were parasited by at least one species (80.65%). Six parasite species were recorded: one species of Dactylogyridae; one species of Apocreadiidae; one species of Proteocephalidea; Procamallanus ( Spirocamallanus ) pimelodus Pinto, Fabio, Noronha e Rolas, 1974; Quadrigyrus sp.; and Ergasilus sp. Thirty-five specimens of Iheringichthys labrosus were captured in Upper Parana River floodplain. Thirteen specimens were parasited by at least one species (37.14%). Five parasites species were found: Herpetodiplostomum gymnoti larvae; one species of Proteocephalidea; Procamallanus ( Spirocamallanus ) pimelodus; Contracaecum sp. Type 1 larvae of Moravec, Kohn and Fernandes, 1993; and Quadrigyrus sp. In both study sites, the prevalence and parasitism abundance were not correlated with hosts standard length. There were significant differences between prevalence and parasites species abundance according to fishes’ sex only in upper Parana floodplain. Moreover, the parasitism abundance did not influence the host condition factor in both sites. Parasites infra communities from the fishes of both sites comparison presented a similarity of 54.54% |
| Databáze: | OpenAIRE |
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