Nutrient addition experiments in Lago Jacaretinga, Central Amazon, Brazil: 2. The effect of humic and fulvic acids A. H. DevolA. Dos SantosT. M. Zaret OriginalPaper Pages: 97 - 103
Population dynamics of Barbus barbus plebejus (Valenciennes) and Leuciscus cephalus cabeda (Risso) in the middle River Po (Italy) R. VitaliL. Braghieri OriginalPaper Pages: 105 - 124
Remarques taxonomiques sur quelques rotiferès des tourbières avec la description d'une espèce et d'une sous-espèce nouvelles A. J. FrancezR. Pourriot OriginalPaper Pages: 125 - 130
Foraminifera and meiofauna on an intertidal mudflat, Cornwall, England: Populations; respiration and secondary production; and energy budget Robert L. Ellison OriginalPaper Pages: 131 - 148
Some new taxa of desmids from the Andaman Islands, India Braj Nandan PrasadPradeep Kumar Misra OriginalPaper Pages: 149 - 158
Comparison of potential growth rates of Ceratium hirundinella with observed population density changes Ulrich SommerCarola WedemeyerBritta Lowsky OriginalPaper Pages: 159 - 164
Effects of starvation on growth and reproductive apparatus of two immature freshwater snails Biomphalaria pfeifferi and Biomphalaria glabrata (Gastropoda: Planorbidae) Marc Vianey-Liaud OriginalPaper Pages: 165 - 172
Temperature preference and avoidance studies of six North American freshwater fish species D. A. CincottaJ. R. Stauffer Jr. OriginalPaper Pages: 173 - 177
Effects of increased salinity on the diatom assemblage in Fonda Lake, Michigan Marc L. TuchmanEugene F. StoermerHeath J. Carney OriginalPaper Pages: 179 - 188