Preface. Acknowledgements. Introduction. I. E. Gönenç and B.Toktoraliev.- Watershed Management In Various Countries. Watersheds and Water Management System in Algeria; M. Messahel.-Advances in Managing Austria\'s Water Resources; M. Schönerklee.- Problems and prospects of water resources management in the Azerbaijan Republic ;A.Aliev.-Water Resources Management System Of Kyrgyzstan; M.Amanaliev.-Watershed Management Practices in the Philippines, The Tigum-Aganan Watershed Case;J. C. Sala.- Watershed Management System in Poland and Its Implications for Environmental Conditions of the Baltic Sea: An Example of the Vistula River Watershed; E. Andrulewicz.- Water Resources Management in Romania: Challenges and Opportunities; A.Vadineanu and E. Preda.- Watershed Management in the Russian Federation and Trans-boundary Issues by Example of Kaliningrad Oblast (Russia).- B.Chubarenko.- Overview of Water Management in Turkey: Issues, Constraints, Achievements Prospect; S.Burak.- Watershed Management in the U.S.A.; R. C. Russo et al.-Decision Support Tools, Models and Case Studies.Multilevel Participatory Model for Decision Making on Regional Hydro-System Basis: Serbian Case Study; B.Srdjevic and Z.Srdjevic.- Supporting Tools For Decisional Process Within Water Framework Directive: From EU Context to Modelkey Perspective; S.Gottardo et al.- Application Of Water Quality Modelling as a Decision Support System Tool For Planned Buyuk Melen Reservoir and Its Watershed; A.Erturk et al.- The Use of Numerical Modeling in Italian Watershed Management; G.Umgiesser et al.- Sustainable Development Of Watersheds: Using Sturgeon Species As An Indicator in Integrated Trans-Boundary Water Management in The Ural River Basin;V.Lagutov.- Lagoon Ecosystem Study Trough Two Cases: Oualidia (Atlantic) and Nador (Mediterranean) - Morocco; A. Orbi et al.- Coastal lagoons in the context of water management in Spain and Europe ; A. Pérez-Ruzafa.- Water Framework Directive: Defining TheEcological Quality Status In Transitional And Coastal Waters; S.Gamito. The Role of Ecological Endpoints in Watershed Management; B. Rashleigh.-- Bioidentification of Xenobiotics as a Basis of Water management; V.Tonkopii et al.- GIS analysis of sustainable development indicators for coastal watersheds in the South-Eastern Baltic;B. Chubarenko and D. Domnin.- Combined Use of Watershed Models to Assess the Apportionment of Point and Non Point Load Sources to Surface Waters;A.Azzellino et al.- Development Of National Action Plan To Address Pollution From Land Based Activities In Turkey; A. Gülsen. Et al.- Reduction of the Land-Based Discharges to the Curonian Lagoon in a View of a Climate Change Perspective; A. Razinkovas et al.- The Study of Hydro-Mineralogical and Ecological Regime of Kara-Bogaz-Gol Lagoon; O. Geldiyew.- Comparative Analysis of Water Management Practices in Mediterranean Countries; S.Burak.- Chesapeake Bay Program - A Watershedf Approach to Management; J.P. Wolflin.- Conclusions and Recommendations. Decision Support Systems and Tools; R.Neves et al.- Land-based sources and water quality and management; A.Vadineanu et al.-Decision Making, Policy And Financing ;J. Wolflin et al.-List of Participants