In situ nitrogen (C2H2) fixation in lakes of southern Victoria Land, Antarctica F. C. Thomas AllnuttBruce C. ParkerGeorge M. Simmons Jr. OriginalPaper Pages: 99 - 109
Saline seepage and vertical distribution of oxygen in a brackish ditch A. G. A. MerksJ. W. Rijstenbil OriginalPaper Pages: 111 - 121
The influence of micro-algae on the oxygen dynamics in a brackish ditch J. W. RijstenbilA. G. A. Merks OriginalPaper Pages: 123 - 135
Autecological investigations on marine diatoms. 2. Generation times of 50 species J. W. M. Baars OriginalPaper Pages: 137 - 151
Ecological assessment of water quality: Comparison of biological-ecological procedures in a rain-fed lowland waterway (Kleine nete, N.Belgium) A. Vande LannooteG. De GueldreB. Bruylants OriginalPaper Pages: 161 - 164
Growth and production ofPhragmites australis in Lake Vechten (the Netherlands) Elly P. H. BestM. ZippinJ. H. A. Dassen OriginalPaper Pages: 165 - 173
Asimple method for separating micro-, meio- and macrofauna, and plant litter fractions L. De WolfG. J. C. Buth OriginalPaper Pages: 175 - 177
A comparison between two methods of extracting chlorophyll-a from different phytoplankton samples R. M. M. Roijackers OriginalPaper Pages: 179 - 183
Nitrogen and phosphorus budgets of a nymphaeid-dominated system Th. C. M. Brock OriginalPaper Pages: 191 - 192
Aspects of the study on the availability of iron for phytoplankton in Tjeukemeer, the Netherlands H. De HaanD. J. WijbengaM. J. W. Veldhuis OriginalPaper Pages: 193 - 194
Influence of currents and waves on the whirling up of benthic diatoms living on intertidal flats V. N. De JongeJ. Van Den BergsJ. E. C. A. Koekenbier Report Pages: 197 - 197
Research into the characteristics of C3 and C4 plants inCeratophyllum demersum L. John T. MeulemansElly P. H. Best Report Pages: 199 - 199
Oproep aan de phytoplanktononderzoekers in Nederland door R.M.M. Roijackers (Sektie Hydrobiologie, Landbouwhogeschool, De Dreijen 12, 6703 BC Wageningen, Nederland) Miscellaneous Pages: 200 - 202
