Congratulation to Prof. Heinz Ambühl's 65th Anniversary Hans Rudolf Bürgi EditorialNotes Pages: 157 - 160
Reaction of fish larvae to the water of the River Elbe at Hamburg harbour Andreas RieckhoffWalter Nellen OriginalPaper Pages: 161 - 172
Field observations on the production of rainbow trout(Oncorhynchus mykiss) under high concentrations of water-borne iron W. SteffensTh. MattheisM. Riedel OriginalPaper Pages: 173 - 178
Nanociliates of the order Prostomatida: Their relevance in the microbial food web of a mesotrophic lake Ruben SommarugaRoland Psenner OriginalPaper Pages: 179 - 187
Empirical relationships between diversity of invertebrate communities and altitude in rivers: Application to biomonitoring Claude LangOlivier Reymond OriginalPaper Pages: 188 - 196
Diversity of meiofauna in the lacustrine profundal zone: Bathymetric differences and influence of environmental factors Jukka Särkkä OriginalPaper Pages: 197 - 205
Bottom currents induced by baroclinic forcing in Lake Banyoles (Spain) E. RogetJ. ColomerJ. E. Llebot OriginalPaper Pages: 206 - 227