Lizama, M. de los A.P. Takemoto, R.M. Pavanelli, G.C. Ecological aspects of metazoan parasites of Astyanax altiparanae Garutti Britski 2000 (Characidae)of the upper Paraná river floodplain, Brazil Subjects--Topical Terms: LAMBARIPARASITODISTRIBUIÇÃO GEOGRÁFICA