1. Two new species of the genus Rhynchonema (Nematoda, Xyalidae) from Amakusa, south Japan

   • C. Aryuthaka

   OriginalPaper Pages: 3 - 10

2. Evolving water quality in a common carp and blue tilapia high production pond

   • Ronald D. Zweig

   OriginalPaper Pages: 11 - 21

3. Geographical distribution, morphology and water quality of caldera lakes: a review

   • Gary L. Larson

   OriginalPaper Pages: 23 - 32

4. Effects of floods on epilithon and benthic macroinvertebrate populations in an unstable New Zealand river

   • Garry J. Scrimgeour
   • Michael J. Winterbourn

   OriginalPaper Pages: 33 - 44

5. Effects of an experimental acid pulse on invertebrates in a high altitude Sierra Nevada stream

   • Pamela S. Hopkins
   • Kim W. Kratz
   • Scott D. Cooper

   OriginalPaper Pages: 45 - 58

6. Classification and ordination of macroinvertebrate assemblages to predict stream acidity in upland Wales

   • K. R. Wade
   • S. J. Ormerod
   • A. S. Gee

   OriginalPaper Pages: 59 - 78

7. Evidence of structural and functional adaptation in epilithon exposed to zinc

   • Frederick S. Colwell
   • Sally G. Hornor
   • Donald S. Cherry

   OriginalPaper Pages: 79 - 90