Hydrobiologia The International Journal on Limnology and Marine Sciences Volume 492, 1 February 2003 Part | Sediment—Water Interaction 13 Edited by H. L. Golterman Guidelines for authors for the sediment issues of Hydrobiologia A test of normalization methods for marine sediment, including a new post-extraction normalization (PEN) technique Gavin F. Birch Phosphorus in settling matter and bottom sediments in lakes loaded by agriculture Kirsti Krogerus, Petri Ekholm Determining algal-available phosphorus of differing origin: routine phosphorus ana- lyses versus algal assays Petri Ekholm, Kirsti Krogerus Pore water nutrient profiles and dynamics in soft bottoms of the northern Baltic Sea Kalervo Makela, Liisa Tuominen Binding of phosphate in sediment accumulation areas of the eastern Gulf of Finland, Baltic Sea Jouni Lehtoranta, Heikki Pitkanen Dissolved iron:phosphate ratio as an indicator of phosphate release to oxic water of the inner and outer coastal Baltic Sea Jouni Lehtoranta, Anna-Stiina Heiskanen The distributions and effects of nutrients in the sediments of a shallow eutrophic Chinese lake Fu-Liu Xu, S. Tao, R. W. Dawson, Z. R. Xu Sediment phosphate fractionation and interstitial water phosphate concentration in two coastal lagoons (Albuferas de Adra, SE Spain) |. de Vicente, L. Serrano, V. Amores, V. Clavero, L. Cruz-Pizarro Particle size-related phosphate binding and P-release at the sediment—water interface in a shallow German lake Uwe Selig 107-118 inorganic nutrient and oxygen fluxes across the sediment—water interface in the inshore macrophyte areas of a shallow estuary (Lake Illawarra, Australia) Wenchuan Qu, R. J. Morrison, R. J. West 119-127 Vi Phosphorus distribution in sediments of Morales Stream (tributary of the Matanza- Riachuelo River, Argentina). The influence of organic point source contamination Ana Rosa Garcia, Alicia F. de lorio 129-138 Effects of aluminum, iron, oxygen and nitrate additions on phosphorus release from the sediment of a Danish softwater lake Jonas Hansen, Kasper Reitzel, Henning S. Jensen, Frede ©. Andersen 139-149 influence of nitrogen species (NH,* and NO; ) on the dynamics of P in water—sediment- Salvinia herzogii systems M. C. Panigatti, M. A. Maine 151-157 Variability of the sediment phosphate composition of a temporary pond (Donana National Park, SW Spain) L. Serrano, |. Calzada-Bujak, J. Toja 159-169 Concentrations of heavy metals and related trace elements in some Ethiopian rift-valley lakes and their in-flows G. M. Zinabu, Nicholas J. G. Pearce 171-178 Part Il Salt Ecosystems Section Edited by John M. Melack & Patrick Sorgeloos The contribution of size-fractionated plankton to biomass and primary production of phytoplankton in saline—alkaline ponds Zhao Wen, Dong Shuang-Lin 181-190 Effects of salinity and temperature on reproductive and life span characteristics of clonal Artemia. (international Study on Artemia. LXV1) Theodore J. Abatzopoulos, Nagy El-Bermawi, Christos Vasdekis, Athanasios D. Baxevanis, Patrick Sorgeloos 191-199 Influence of high salinity and nitrogen limitation on package effect and C/N ratio in Dunaliella viridis C. Jiménez, F. X. Niell 201-206 Instructions for authors 207-209 KElecltronuic jwourneals rat (l)#é ne Contact your librarian for more information 7