1. A note about Daphnia in Venezuelan waterbodies

   • Aída Infante

   OriginalPaper Pages: 81 - 82

2. Nutrient digestibility and growth responses of rainbow trout (Salmo gairdneri) fed different levels of cassava and rice

   • E. B. C. Ufodike
   • A. J. Matty

   OriginalPaper Pages: 83 - 88

3. The freshwater Copepoda (Crustacea) of Costa Rica with notes on some species

   • Carmen Collado
   • D. Defaye
   • C. H. Fernando

   OriginalPaper Pages: 89 - 99

4. Seasonal occurrence of water-borne fungi in Konaje stream (Mangalore), India

   • K. R. Sridhar
   • K. M. Kaveriappa

   OriginalPaper Pages: 101 - 105

5. Four new species of Halicyclops Norman, 1903 (Copepoda, Cyclopoida) from Brazil

   • Carlos Eduardo Falavigna da Rocha

   OriginalPaper Pages: 107 - 117

6. Impact of the Tihange nuclear power plant on the periphyton and the phytoplankton of the Meuse River (Belgium)

   • J. P. Descy
   • C. Mouvet

   OriginalPaper Pages: 119 - 128

7. The ecological effect of acid conditions and precipitation of hydrous metal oxides in a Rocky Mountain stream

   • Diane M. McKnight
   • Gerald L. Feder

   OriginalPaper Pages: 129 - 138

8. A comparison of the accuracy and precision of several open-water oxygen productivity techniques

   • Robert J. Kosinski

   OriginalPaper Pages: 139 - 148

9. Phytoplankton ecology in an unusually stable environment (Montezuma Well, Arizona, U.S.A.)

   • Paul Boucher
   • Dean W. Blinn
   • David B. Johnson

   OriginalPaper Pages: 149 - 160