Investigation of a toxic water-bloom of Microcystis aeruginosa (Cyanophyceae) in Lake Akersvatn, Norway Kjetil BergWayne W. CarmichaelBjarne Underdall OriginalPaper Pages: 97 - 103
Sex, population dynamics and resting egg production in rotifers Terry W. Snell OriginalPaper Pages: 105 - 111
Estimation of production and respiration rates by the ciliated protozoa community in an experimental ricefield Paolo Madoni OriginalPaper Pages: 113 - 120
Operculum closing as a defence against predatory leeches in four British freshwater prosobranch snails Paul M. KellyJenny S. Cory OriginalPaper Pages: 121 - 124
Aquatic Oligochaeta in some tributaries of the Río de La Plata, Buenos Aires, Argentina Celia Gluzman de Pascar OriginalPaper Pages: 125 - 130
Redescription and assignment of Alona globulosa Daday, 1898 to a new genus Notoalona and a description of Notoalona freyi sp. nov. R. RajapaksaC. H. Fernando OriginalPaper Pages: 131 - 153
Halicyclops korodiensis Onabamiro (Crustacea, Copepoda) in the estuary of the Warri River, Nigeria, West Africa Charity GabrielSibylle MaasA. B. M. Egborge OriginalPaper Pages: 155 - 161
Size selection of latex beads by blackfly larvae (Diptera: Simuliidae) in the laboratory P. Schröder OriginalPaper Pages: 163 - 171
Primary production and pigments in three low alkalinity connected reservoirs receiving mine wastes G. CabeçadasM. J. Brogueira OriginalPaper Pages: 173 - 182
Regulation of blue-green algal buoyancy and bloom formation by light, inorganic nitrogen, C02, and trophic level interactions Craig N. SpencerDarrell L. King OriginalPaper Pages: 183 - 191