Group Coastal Ecohydrology aims to study the interactions between water and ecosystems in coastal regions from an interdisciplinary position. It promotes the concept of implementation of the Integrated Water Resource Management in coastal zones. Discussions, studies and experiences from all areas of ecohydrology, from transpiration and plant water use, adaption of organisms to their water environment, influence of vegetation on stream flow and function, and feedbacks between ecological processes and the hydrological cycle, are more than welcome.