TY  - SER
AU  - Machado,M.H.
AU  - Pavanelli,G.C.
AU  - Takemoto,R.M.
TI  - Influence of the type of environment and of the hydrological level variation in endoparasitic infrapopulations of pseudoplatystoma corruscans (Agassiz)and Schizodon borelli (Boulenger)(Osteichthyes)of the high Parana river, Brazil
KW  - Ecologia Aquatica
KW  - PARANÁ
ER  -