Elements of an integrated analysis of a land/water use and nature conservation in De Vechtstreek area are presented. This is a river plane composed of patches of lakes and polders, in the centre of The Netherlands. The attention is focused on the economic dimensions of the research. To this end,...

Harmful algal bIoom species are the cause of important damages to marine living resources and human beings. These marine species are primarily introduced in North-European waters through ballast water, i.e. water trans-ported across the oceans so as to keep a vessel in balance. Port authorities...