1. Density and distribution in laboratory populations of midge larvae (Chironomidae: diptera)

   • A. J. McLachlan

   OriginalPaper 01 September 1977 Pages: 195 - 199

2. Litterfall, litter decomposition, and flux of particulate organic material in a coastal plain stream

   • Henry A. Post
   • Armando A. De La Cruz

   OriginalPaper 01 September 1977 Pages: 201 - 207

3. Chemical, physical and biological changes associated with chara succession in farm ponds

   • Shirley A. Crawford

   OriginalPaper 01 September 1977 Pages: 209 - 217

4. Factors controlling the seasonal incidence of Pandorina morum (Mull.) Bory (Chlorophyta, Volvocales) in a small pond

   • Brian Moss

   OriginalPaper 01 September 1977 Pages: 219 - 223

5. Potentiation of zinc stress caused by parasitic infection of snails

   • Daniel J. Guth
   • Harvey D. Blankespoor
   • John Cairns Jr.

   OriginalPaper 01 September 1977 Pages: 225 - 229

6. Microdistribution of benthic invertebrates in a rocky mountain (U.S.A.) stream

   • G. Wayne Minshall
   • Judy N. Minshall

   OriginalPaper 01 September 1977 Pages: 231 - 249

7. L'influence du cadmium sur l'activite de la phosphatase alcaline dans divers tissus de Lepomis gibbosus L. (Pisces; Centrarchidae)

   • A. Piavaux

   OriginalPaper 01 September 1977 Pages: 251 - 256

8. A limnological study of the Afram arm of volta lake

   • E. K. Obeng-Asamoa

   OriginalPaper 01 September 1977 Pages: 257 - 264

9. Locomotor activity of river lamprey Lampetra fluviatilis (L.) during the spawning season

   • Kjell Sjoberg

   OriginalPaper 01 September 1977 Pages: 265 - 270

10. In memoriam

    Legacy 01 September 1977 Pages: 271 - 276

11. Libri novi

    Legacy 01 September 1977 Pages: 277 - 280