Effect of current speed on the cephalic fans of the larva of Simulium ornatum var. nitidifrons Edwards (Diptera: Simuliidae) Jennifer J. Harrod OriginalPaper Pages: 8 - 12
Beitrag zur Kenntnis der Art Cyclops tatricus Kozminski (Crustacea, Copepoda) in der Tschechoslowakei František Kubíček OriginalPaper Pages: 75 - 84
Studies on the biology of genus Synodontis at Khartoum H. M. BishaiY. B. Abu Gideiri OriginalPaper Pages: 85 - 97
Two techniques for sampling freshwater habitats P. A. GarnettR. H. Hunt OriginalPaper Pages: 114 - 120
Symposium on new methods of determining biogenic and organic substances in water and organisms H. L. GoltermanH. R. KrauseD. F. Westlake OriginalPaper Pages: 121 - 130
Oxygen consumption of profundal lake animals at low oxygen content of the water Kaj BergPétur M. Jónasson OriginalPaper Pages: 131 - 143
Some peculiarities concerning the contraction of the gametes in Spirogyra maxima (Hass. Wittrock) Fr. Symons OriginalPaper Pages: 144 - 150
Radionuclide accumulation by Anodonta piscinalis Nilsson (Lamellibranchiata) in a continuous flow system Karen GarderOlav Skulberg OriginalPaper Pages: 151 - 169
A survey of the bottom fauna of streams in the Scottish Highlands Henry J. EgglishawN. C. Morgan OriginalPaper Pages: 173 - 183
Hydrobiological studies on the Tugela river system W. D. OliffP. H. KempJ. L. King OriginalPaper Pages: 189 - 202
Experiments on competition between two Asellus species (Isopoda Crustacea) H. B. N. HynesW. D. Williams OriginalPaper Pages: 203 - 210
The ecology of solar sewage drying beds in the Pirana Sewage Farm at Ahmedabad S. V. GanapatiI. P. S. PrasadaraoThomas Koshy OriginalPaper Pages: 242 - 270
Studies on bottom deposits of the Vaal River system G. LenhardA. du Plooy OriginalPaper Pages: 271 - 291
Les formes zoogènes de tufs et leur formation dans la région des Lacs de Plitvice en Yougoslavie Ivo MatoničkinZiatko Pavletiíc OriginalPaper Pages: 292 - 300
A laboratory study of predation on lake-dwelling triclads J. O. YoungT. B. Reynoldson OriginalPaper Pages: 307 - 313