Decomposition and nutrient liberation rates of plant material in the Parana medio River (Argentina) M. LeguizamonJ. HammerlyM. J. Pizarro OriginalPaper Pages: 157 - 164
Six new species of the genus Diplopeltula (Nematoda: Diplopeltidae) with remarks on the heterogeneity of the taxon M. VincxN. Gourbault OriginalPaper Pages: 165 - 178
The physiological state of the phytoplankton community of three types of lakes as estimated by its adenylate energy charge Shuji Hino OriginalPaper Pages: 179 - 192
Nutrient loading and drainage channel response in a ricefield system Elisenda Forès OriginalPaper Pages: 193 - 200
Effects of liming on the occurrence and abundance of fish populations in acidified Swedish lakes E. DegermanM. AppelbergP. Nyberg OriginalPaper Pages: 201 - 212
A method for the study of N2O evolution in tropical wetlands Valeria WhitakerBohdan Matvienko OriginalPaper Pages: 213 - 218
The body wall of Halicryptus spinulosus (Priapulida) — ultrastructure and changes induced by hydrogen sulfide Hans Heinrich JanssenRolf Oeschger OriginalPaper Pages: 219 - 230