1. Nitrogen fixation in subarctic streams influenced by beaver (Castor canadensis)

   • Margaret M. Francis
   • Robert J. Naiman
   • Jerry M. Melillo

   OriginalPaper Pages: 193 - 202

2. Influence of the surface microlayer on nutrients, chlorophyll and algal diversity of a small eutrophic bog pond

   • Kenneth W. Estep
   • Charles C. Remsen

   OriginalPaper Pages: 203 - 213

3. Plankton und Stoffhaushalt der Mosel bei der Stauhaltung Enkirch 1981

   • W. Rech
   • R. Kinzelbach

   OriginalPaper Pages: 215 - 235

4. Carbon flow in a small turbid man-made impoundment

   • J. U. Grobbelaar
   • D. F. Toerien

   OriginalPaper Pages: 237 - 247

5. Fresh-water fishes of Kampuchea

   • Maurice Kottelat

   OriginalPaper Pages: 249 - 279

6. Species composition and distribution of the freshwater fish fauna of the North of Vietnam

   • Mai Dinh Yen

   OriginalPaper Pages: 281 - 286

7. Index to volume 121

   Legacy Pages: 287 - 288