1. Influence of submerged aquatic vegetation on size class distribution of perch (Perca fluviatilis) and roach (Rutilus rutilus) in the littoral zone of Lake Geneva (Switzerland)

   • Olivier Rossier
   • Emmanuel Castella
   • Jean-Bernard Lachavanne

   OriginalPaper Pages: 1 - 14

2. Failure of swim bladder inflation of perch,Perca fluviatilis L. found in natural populations

   • Mathias Egloff

   OriginalPaper Pages: 15 - 23

3. Hexavalent chromium: Toxicity and impact on carbohydrate metabolism and haematological parameters of carp (Cyprinus carpio L.) from Saudi Arabia

   • A. S. Al-Akel
   • M. J. K. Shamsi

   OriginalPaper Pages: 24 - 30

4. River incision and vegetation dynamics in cut-off channels

   • Gudrun Bornette
   • Claude Amoros
   • Jean-Claude Rostan

   OriginalPaper Pages: 31 - 51

5. Concentrations and transport of trace metals in the St. Lawrence River

   • Bernadette Quémerais
   • Ken R. Lum
   • Claire Lemieux

   OriginalPaper Pages: 52 - 68

6. Free cupric ion concentrations and Cu complexation in selected Swiss lakes and rivers

   • Hanbin Xue
   • Andrea Oestreich
   • Laura Sigg

   OriginalPaper Pages: 69 - 87

7. Forthcoming meetings

   Report Pages: 88 - 89