Uptake of radionuclides by some aquatic macrophytes of Ismailia Canal, Egypt W. E. Y. AbdelmalikR. M. K. El-ShinawyK. A. Mahmoud OriginalPaper 01 July 1973 Pages: 3 - 12
Die eintagsfliegen (Ephemeropta) in forellenbächen der beskiden. II. — Produktion Milos Zelinka OriginalPaper 01 July 1973 Pages: 13 - 19
Über die Variabilität von Stephanodiscus hantzschii GRUN Lothar Kalbe OriginalPaper 01 July 1973 Pages: 21 - 29
Studies on the life cycle of Pallisentis nagpurensis Bhalerao, 1931 (Pallisentidae; Acanthocephala) parasitic in the fish Ophiocephalus striatus (Bloch) P. V. GeorgeA. M. Nadakal OriginalPaper 01 July 1973 Pages: 31 - 43
Physico-Chemical Aspects of Lake McIlwaine (Rhodesia), A Eutrophic Tropical Impoundment B. E. MarshallA.C. falconer OriginalPaper 01 July 1973 Pages: 45 - 62
Paläolimnologische Studien an Testaceen aus Bohrkernen des Latnjajaure (Abisko-Gebiet; Schwedisch-Lappland) W. Schönborn OriginalPaper 01 July 1973 Pages: 63 - 75
The environmental toxicity of crassin acetate using Tetrahymena pyriformis as a model Donald L. PerkinsLeon S. Ciereszkko OriginalPaper 01 July 1973 Pages: 77 - 84
Relationship between extracellular and cellular production in the sulphuric green bactreium Chlorobium limicola Nads. (Chlorobacteriaceae) as compared to primary production of phytoplankton B. CzeczugaF. Gradzki OriginalPaper 01 July 1973 Pages: 85 - 95
Über den Einfluss der Herbizide auf einige Süsswassertiere Oldřich Pravda OriginalPaper 01 July 1973 Pages: 97 - 142
Humesiella corallicola n.g., n.sp., a cyclopoid copepod associated with coral on the South East Coast of India M. J. SebastianN. Krishna Pillai OriginalPaper 01 July 1973 Pages: 143 - 152
Notes on some testacea (protozoa, rhizopoda) of the Yugoslavian coast of the Adria near Rab H. Laminger OriginalPaper 01 July 1973 Pages: 153 - 154
