Organismos associados aos tanques de piscicultura dos Centros de Producao e Experimentacao/C.E.P.-IAPAR (Ponta Grossa e Morretes)[Instituto Agronomico do Parana, tilapia, Brasil]
Organisms associated to fish tanks of the Reproduction and Experimentation Centers/C.E.P.-IAPAR (Ponta Grossa and Morretes)[Agronomic Institute of Parana, tilapia, Brazil]