TY - SER AU - Velho,L.F.M. AU - Lansac-Tôha,F.M. AU - Buosi,P.R.B. AU - Meira,B.R.de AU - Cabral,A.F. AU - Lansac-Tôha,F.A. TI - Structure of planktonic ciliates community (Protist, Ciliophora)from an urban lake of southern Brazil KW - PROTOZOÁRIO KW - PLÂNCTON KW - BIOLOGIA AQUÁTICA ER -