Oceans, Rivers and Lakes: Energy and Substance Transfers at Interfaces

Invited Lectures.- Man and river interface: multiple impacts on water and particulates chemistry illustrated in the Seine river basin.- Mechanisms for internal loading of phosphorus in lakes.- Session 1: Methodologies and Modelling.- River ecosystem modelling: application of the PROSE model to the Seine river (France).- Forecasting of water quality in lakes: a predictive use of a one-dimensional model. Application to Lake Bourget (Savoie, France).- Comparison of Neutron Activation Analysis and ICP-MS used for river water pollution control.- Session 2: Interface between Medium and Living Beings.- Fate of plant detritus in a European salt marsh dominated by Atriplex portulacoides (L.) Aellen.- Benthic influence on the metabolism of a shallow tropical lagoon (Lagoa da Barra, Brazil).- Afforestation with Eucalyptus globulus and leaf litter decomposition in streams of northern Spain.- Short-term effect of nitrogen enrichment on the microbial communities of a peatland.- Role of fish communities in particulate organic matter fluxes between salt marshes and coastal marine waters in the Mont Saint-Michel Bay.- Nitrate reductase activity of phytoplankton populations in eutrophic Lake Aydat and meso-oligotrophic Lake Pavin: a comparison.- Influence of oyster culture on water column characteristics in a coastal lagoon (Thau, France).- Laboratory experiments on trophic relationships and remote detection between two ciliates and Cyclops vicinus vicinus.- Spatial and temporal distribution of chironomid larvae (Diptera: Nematocera) at the Sediment—water interface in Lake Abbaye (Jura, France).- Session 3: Interface between Nutrients and Physical Medium.- A wetland managed for agriculture as an interface between the Rhône river and Vaccarès lagoon (Camargue, France): transfers ofwater and nutrients.- Sediment—water exchanges of ammonium and phosphate in intertidal and subtidal areas of a mesotidal coastal lagoon (Ria Formosa).- Phosphate mobility at the sediment—water interface of a Mediterranean lagoon (étang du Méjean), seasonal phosphate variation.- Wetland effects on water quality: input—output studies of suspended particulate matter, nitrogen (N) and phosphorus (P) in Grand-Lieu, a natural plain lake.- The input of nutrients by the Rhône river into the Mediterranean Sea: recent observations and comparison with earlier data.- Seasonal and spatial trends of nitrogen and phosphorus loads to the upper catchment of the river Vilaine (Brittany): relationships with land use.- Session 4: Interfaces between Pollutants, Medium and Living Beings.- Fate and effects of micropollutants in the Gironde estuary, France: A multidisciplinary approach.- Particulate organic matter composition in the Estuarine Turbidity Maxima (ETM) of the Seine River estuary.- Influence of the level of oxygenation in sediment and water on copper bioavailability to marine bivalves: laboratory experiments and translocation experiments in the field.- Characterisation of marine Zooplankton alkaline phosphatase activity in relation to water quality.- Session 5: Fluxes at Interfaces.- The lead content of atmospheric aerosols above the eastern channel: seasonal variability and solubility in a coastal seawater.- Biological components from the Seine estuary: first results.- Sediment phosphorus and internal phosphate flux in the hydroelectric reservoir of Bort-les-Orgues, France.- Impact of a flood event on the biogeochemical behaviour of a mesotrophic alpine lake: Lake Bourget (Savoy).