Ecological studies on the planktonic protozo of a eutrophic reservoir (Rio Grande Reservoir — Brazil) Sioni Maluf BarbieriMirna J. L. Godinho Orlandi OriginalPaper Pages: 1 - 10
Ciliated Protozoan communities in a fluvial ecosystem Ma del Pilar GraciaC. CastellonR. Sunyer OriginalPaper Pages: 11 - 31
Erosion, phosphorus and phytoplankton response in rivers of South-Eastern Norway Tore KrogstadØivind Løvstad OriginalPaper Pages: 33 - 41
Icthyological studies in La Cuarentena Lagoon (Carabajal Island), Paraná River: Density of Prochilodus platensis Holmberg (Curimatidae) Elly de Yuan CordiviolaClarice Pignalberi de Hassan OriginalPaper Pages: 43 - 46
New species and new records of Callionymus from the Pacific Ocean (Teleostei: Callionymidae) Ronald Fricke OriginalPaper Pages: 47 - 57
Downstream drift of the larvae of Chironomidae (Diptera) in the River Chew, S.W. England C. J. Williams OriginalPaper Pages: 59 - 72
Aspects of the phosphorus cycle in Hartbeespoort Dam (South Africa) Phosphorus loading and seasonal distribution of phosphorus in the reservoir J. A. ThorntonP. J. Ashton OriginalPaper Pages: 73 - 85