Subtle relationships: freshwater fishes and water chemistry in southern South America Roberto C. MenniSergio E. GómezFemanda López Armengol OriginalPaper Pages: 173 - 197
Nitrogen and phosphorus concentration of different structures of the aquatic macrophytes Eichhornia azurea Kunth and Scirpus cubensis Poepp & Kunth in relation to water level variation in Lagoa Infernão (São Paulo, Brazil) Flávia NogueiraFrancisco de Assis EstevesAlex Enrich Prast OriginalPaper Pages: 199 - 205
Redescription and distribution of Mastigodiaptomus montezumae (Copepoda, Calanoida, Diaptomidae) in Mexico E. N. Dos Santos-SilvaM. Eléas-GutiérrezM. Silva-Briano OriginalPaper Pages: 207 - 213
Toxicity analysis of freshwater and marine sediments with meio- and macrobenthic organisms: a review Walter TraunspurgerCarlos Drews Invited review paper Pages: 215 - 261