1. Feeding habits and dietary overlap of Naididae (Oligochaeta) from a bog stream

   • Michael E. Smith
   • Jerry L. Kaster

   OriginalPaper Pages: 193 - 201

2. Effect of collection and acclimation period on grazing rates of limnetic zooplankton

   • Patricia Chow-Fraser

   OriginalPaper Pages: 203 - 210

3. A comparison of phytoplankton responses to nutrient additions in acidic and circumneutral pH lakewater

   • K. E. Havens
   • J. DeCosta

   OriginalPaper Pages: 211 - 222

4. Population dynamics and nutrient fluxes in an aquatic microcosm

   • Catherine A. Elstad

   OriginalPaper Pages: 223 - 237

5. Primary productivity and related parameters in three different types of inland waters in Sri Lanka

   • E. I. L. Silva
   • Ronald W. Davies

   OriginalPaper Pages: 239 - 249

6. A simple semi-continuous piston corer for organic sediments

   • Colin J. P. McKean
   • Richard N. Nordin

   OriginalPaper Pages: 251 - 256

7. Effect of detritus addition on metabolism of river sediment

   • Stuart Findlay
   • Phillip J. Smith
   • Judy L. Meyer

   OriginalPaper Pages: 257 - 263

8. Movements of some indigenous riverine fish in Sri Lanka

   • E. I. L. Silva
   • Ronald W. Davies

   OriginalPaper Pages: 265 - 270

9. What is meant by validation of predictions based on laboratory toxicity tests?

   • John Cairns Jr.

   OriginalPaper Pages: 271 - 278

10. Hydrobiologia & developments in hydrobiology guide for the preparation of manuscripts

    OriginalPaper Pages: 279 - 286