1. Water quality of streams in the Great Smoky Mountains National Park

   • D. G. Silsbee
   • G. L. Larson

   OriginalPaper Pages: 97 - 115

2. A principal components analysis of the phytoplankton from a pond in the Paraná River Valley, Argentina

   • M. O. García de Emiliani
   • P. J. Depetris

   OriginalPaper Pages: 117 - 122

3. Seasonal changes in fat and fatty acid composition of Limnothrissa miodon Boulenger (Pisces: Clupeiformes) from Lake Tanganyika, with reference to their nutritive value

   • H. A. Deelstra
   • K. Van Cauwenberghe

   OriginalPaper Pages: 123 - 127

4. Trophic relations of Crangon franciscorum Stimpson and Palaemon macrodactylus Rathbum: predation on the opossum shrimp, Neomysis mercedis Holmes

   • Clifford A. Siegfried

   OriginalPaper Pages: 129 - 139

5. Drift patterns in a high Andean stream

   • P. Turcotte
   • P. P. Harper

   OriginalPaper Pages: 141 - 151

6. Drift and upstream movement of invertebrates in a springbrook community ecosystem

   • M. J. Butler IV
   • H. H. Hobbs III

   OriginalPaper Pages: 153 - 159

7. Physicochemical limnology of the Tongue River Reservoir, Montana

   • S. C. Whalen
   • S. A. Leathe
   • J. C. Wright

   OriginalPaper Pages: 161 - 176

8. Distribution of chironomids in the littoral zone of Lake Texoma, Oklahoma and Texas

   • C. C. Vaughn

   OriginalPaper Pages: 177 - 188

9. Book reviews

   BookReview Pages: 189 - 191