Martin Thoms is Professor of River Science and Chair of Geography and Planning at the University of New England, Armidale, Australia. His research activities focus on the boundaries of river science – boundaries between different disciplines (geomorphology-hydrology-ecology-biogeochemistry), the science-management-policy boundary and the boundaries between rivers and their floodplains. His research in this domain has occurred in both national and international settings. He is currently Regional Editor for River Research and Applications, on the editorial board of four other international journals and has been President of the International Society for River Science. Ian Fuller is currently Professor in Physical Geography at Massey University in Palmerston North, New Zealand, where he co-directs the Innovative River Solutions group and where he has been based since 2003. His research in fluvial geomorphology provides an integrated understanding of river systems at multiple spatial and temporal scales. He has completed numerous projects for stakeholders in river management and worked in catchments throughout New Zealand, as well as the UK and Europe. Prior to arriving in New Zealand, Ian completed his PhD at the University of Wales, Aberystwyth in 1996, which was followed by a lectureship in Physical Geography at Northumbria University. He is passionate about educating students in NZ’s rivers and linking geomorphology with river management, and serves on the Executive Committee of Engineering New Zealand’s Rivers Group.