1. Ciliated protozoa and water quality in the Parma River (Northern Italy): long-term changes in the community structure

   • Paolo Madoni

   OriginalPaper Pages: 129 - 135

2. An in situ study of rock bass (Ambloplites rupestris) physiology: effect of season and mercury contamination

   • Joseph R. Bidwell
   • Alan G. Heath

   OriginalPaper Pages: 137 - 152

3. Redescription of Daphnia deserti (Gauthier, 1937) (Crustacea: Daphniiformes: Daphniidae)

   • Igor Hudec

   OriginalPaper Pages: 153 - 158

4. Seasonal changes in morphology and size of Daphnia hyalina Leydig in Lago Maggiore

   • Marina Manca
   • Anna Galli Tognota

   OriginalPaper Pages: 159 - 167

5. Anostraca, Notostraca, Laevicaudata and Spinicaudata of Pannonian region and in its Austrian area

   • Heinz Löffler

   OriginalPaper Pages: 169 - 174

6. Intertidal interstitial Halicyclops from the Brazilian coast (Copepoda: Cyclopoida)

   • Guilherme Ribeiro Lotufo
   • Carlos Eduardo Falavigna da Rocha

   OriginalPaper Pages: 175 - 184

7. The distribution and abundance of planktonic penaeid larvae in Tudor creek, Mombasa, Kenya

   • E. O. Wakwabi
   • V. Jaccarini

   OriginalPaper Pages: 185 - 192

8. Author index (volume 264)

   Legacy Pages: 193 - 193

9. Volume 264 (1993), contents

   Legacy Pages: i - i

10. Coastal zone Canada '94 — Cooperation in the coastal zone

    Conference Announcement and First Call for Abstracts/Paper Pages: ii - ii

11. Announcement

    Announcement Pages: iii - iii

12. Announcement

    Announcement Pages: iv - iv