Julien Némery is a Senior Lecturer at the Ecole Nationale Supérieure Energie, Eau, Environnement of the Institut des géosciences de l’environnement (IGE). His research focuses on the biogeochemical cycles of nutrients (nitrogen, phosphorus) and the dynamics of suspended sediments in aquatic environments impacted by human activities. Julien Némery studied biogeochemistry and environmental sciences atUniversité Pierre et Marie Curie (Paris 6). In 2003 he defended his doctoral thesis on phosphorus mobility and eutrophication risk assessment in the Seine catchment area. Since 2004, he has been conducting research at the Institut des géosciences de l’environnement (IGE) on different aquatic ecosystems (rivers, reservoirs, estuaries) and in different regions of the world (French Alps, Seine Basin, Mexican Highlands, Red River Delta and Saigon River in Vietnam).