From 20th to 21st May 2016 took place Professional workshop called ,,Fish migration and barriers on the stream“ on the occasion of the World Fish Migration Day. The main topic of the workshop was free fish migration and restoration of river ecosystems. On the workshop Andrej Devečka, project manager, introduced restoration of Danube river branches, which realised Regional Association for Nature Conservation and Sustainable development (BROZ). On Saturday 21st May 2016 the participants can see the presentations restorated river branches in the territory of the Bratislava.