Macroinvertebrate community structure and detritus processing rates in two southwestern Pennsylvania streams acidified by atmospheric deposition William G. KimmelDeborah J. MurpheyDavid R. DeWalle OriginalPaper Pages: 97 - 102
Secondary production of introduced Asiatic clam, Corbicula fluminea, in a central Arizona canal Paul C. Marsh OriginalPaper Pages: 103 - 110
FAO interests in promoting understanding of world seaweed resources, their optimal harvesting, and fishery and ecological interactions John F. CaddyW. A. Fisher OriginalPaper Pages: 111 - 121
Tasmanomysis oculata n.g. n.sp. from Tasmanian waters (Crustacea: Mysidacea: Mysini) Gwen Elizabeth Fenton OriginalPaper Pages: 123 - 127
Nitrogen transformations in a small mountain stream Joanna S. RicheyWilliam H. McDowellGene E. Likens OriginalPaper Pages: 129 - 139
Predation of common invertebrate predators on long- and short-featured Daphnia retrocurva John E. Havel OriginalPaper Pages: 141 - 149
Development of Lake Kortowskie in relation to the climatic changes in three Holocene periods Izabela RybakMariusz Rybak OriginalPaper Pages: 151 - 166
Studies on ciliated protozoa in eutrophic lakes: 1. Seasonal distribution in relation to thermal stratification and hypolimnetic anoxia A. W. Bark OriginalPaper Pages: 167 - 176
Studies on ciliated protozoa in eutrophic lakes: 2. Field and laboratory studies on the effects of oxygen and other chemical gradients on ciliate distribution A. W. BarkJ. G. Goodfellow OriginalPaper Pages: 177 - 188
Notes on Algerian aquatic fungi: Pythium pythioides Paul BernardBeghdadi Abdellatif OriginalPaper Pages: 189 - 191