A step-wise discriminant analysis of the effects of long term coal mine drainage and coal dredging on phytoplankton of the Guyandotte River T. E. Weaks OriginalPaper Pages: 97 - 103
Gut passage times in Gammarus pulex (Crustacea, Amphipoda) and aspects of summer feeding in a stony stream L. G. WilloughbyR. Earnshaw OriginalPaper Pages: 105 - 117
Decomposition of Cynodon dactylon (L.) Pers. in the seasonally flooded areas of the Pongolo river floodplain: pattern and significance of dry matter and nutrient loss H. D. FurnessC. M. Breen OriginalPaper Pages: 119 - 126
The nature of fish communities: A factor influencing the fishery potential and yields of tropical lakes and reservoirs C. H. FernandoJ. Holčík OriginalPaper Pages: 127 - 140
Effects of feeding level and body size on food utilization of the freshwater snail Pila globosa M. A. Haniffa OriginalPaper Pages: 141 - 149
An analysis, by bioassay, of the factors which limit algal growth in the P. K. le Roux Impoundment, Orange River, South Africa W. T. Selkirk OriginalPaper Pages: 151 - 156
Chemosensory detection of prey by Nephelopsis obscura (Hirudinoidea: Erpobdellidae) Ronald W. DaviesL. R. LintonE. S. Edgington OriginalPaper Pages: 157 - 161
Predation of Arternia cysts by water-tiger larvae of the genus Anacaena (Coleoptera, Hydrophilidae) Ch. DimentmanJ. Spira OriginalPaper Pages: 163 - 165
Croissance individuelle et dynamique de population de Daphnia Magna en culture dans les eaux usées traitées B. MyrandJ. de la Noüe OriginalPaper Pages: 167 - 177
Feeding rhythm in relation to changing patterns of pH in the gut of Sarotherodon galilaeus (Artedi) of Lake Kainji, Nigeria E. A. Akintunde OriginalPaper Pages: 179 - 184
Occurrence, distribution and seasonality of aquatic fungi as affected by chemical factors in six alkaline ponds of Indi* J. K. Misra OriginalPaper Pages: 185 - 191