Marins, M.L. Santos, R. de S. Marengoni, N.G. Takahashi, H.K. Onaka, E.M. Seasonality of Eustrongylides sp. (Nematoda: Dioctophymatidae)larvae in fishes from Paraná river, south-western Brazil Subjects--Topical Terms: PEIXE DE ÁGUA DOCEPARASITOSELARVAINFECÇÃO