Ecohydrology & Hydrobiology is an international journal that aims to advance ecohydrology as the study of the interplay between ecological and hydrological processes from molecular to river basin scales, and to promote its implementation as an integrative management tool to harmonize societal needs with biosphere potential. An essential component of ecohydrology is a rigorous understanding of hydrobiology, from ecosystem properties, dynamics and functions to modelling of abiotic and biotic interactions in relation to their hydrological determinants at the basin scale. The journal will publish high-quality science aimed at increasing the understanding of water–biota interplay and exploring how this knowledge can be used to regulate hydrological and biogeochemical processes to enhance the carrying capacity, especially of anthropogenically modified ecosystems. Research addressing one or several of the following issues will be of prime interest to the journal if it: Leads to new insights into the interactions of water, nutrient and pollutant cycles with biotic components of ecosystems; Employs this understanding for developing ecosystem biotechnologies and system solutions; Identifies possibilities to integrate engineering infrastructure with ecohydrological biotechnologies into system solutions at the catchment scale; Translates transdisciplinary knowledge into decision-support tools; Targets biodiversity, quality and quantity of water resources, ecosystem processes and functioning (including environmental flows), ecosystem services and/or ecosystem resilience as necessary components for enhanced carrying capacity; Is policy-oriented and, within the scope of the journal, addresses the priorities and objectives of international initiatives such as the Millennium Development Goals and UNESCO's International Hydrological Programme. This peer-reviewed journal publishes original research articles, reviews and short communications. The Editors of Ecohydrology & Hydrobiology welcome proposals for special issues on topics that fall within the scope of the journal. More about special issues can be found at https://www.journals.elsevier.com/ecohydrology-and-hydrobiology/policies-and-guidelines/special-issues-ecohyd.