Methodological guide for monitoring the hydropower impact on transboundary river ecosystems was elaborated in the frame of the international project eMS BSB 165 Creating a system of innovative transboundary monitoring of the Black Sea river ecosystems transformation under impacts of hydropower development and climate change – HydroEcoNex (Joint Operational Program Black Sea Basin 2014-2020, financed by the European Union). Work, published separately in Romanian and English, is a co-production of five organisations-partners within the HydroEcoNex project: Institute of Zoology, International ...