Population dynamics of autotrophic picoplankton in relation to environmental factors in a productive lake Télesphore Sime-Ngando OriginalPaper Pages: 91 - 105
Divergent distributions of prey and predator, a fishing effect? J. HartmannL. Probst OriginalPaper Pages: 106 - 118
Prevalence and abundance of two trematode parasites,Diplostomum phoxini andMacrolecithus papilliger in European minnows (Phoxinus phoxinus) in an artificial Swiss Alpine lake Gabi Müller OriginalPaper Pages: 119 - 126
Biochemical genetic study of European whitefish (Coregonus lavaretus) in Lake Mondsee, Upper Austria M. LuczynskiB. Ritterbusch-Nauwerck OriginalPaper Pages: 127 - 135
Biochemical genetic study of sympatric Lake Constance whitefish (Coregonus lavaretus) populations: “Blaufelchen” and “Gangfisch” M. LuczynskiR. RöschP. Brzuzan OriginalPaper Pages: 136 - 143
The fate of Chernobyl radiocesium in the River Öre catchment, northern Sweden Louise MalmgrenMats Jansson OriginalPaper Pages: 144 - 160
Pollution mechanisms in a Ramsar wetland: Delta of the River Evros, Greece Michael O. AngelidisAndreas I. Athanasiadis OriginalPaper Pages: 161 - 171
An improved index of environmental quality for Swiss rivers based on benthic invertebrates Claude LangOlivier Reymond OriginalPaper Pages: 172 - 180