A coalition of international and Bosnian scientists, together with leading environmental NGOs, reveal evidence linking the mass mortality of fish and other aquatic life on the affected stretch of the upper Neretva on September 12, 2025, to operational practices at the Ulog Hydropower Plant.

Yesterday, September 24 2025, the Austrian freshwater ecologist Prof. Dr. Fritz Schiemer, Chair of Riverwatch, has been awarded the Wolfgang Staab Nature Conservation Award 2025 by the Schweisfurth Stiftung. The prize recognizes his exceptional scientific and political commitment to protecting the Vjosa River in Albania.

The lack of required ecological flow from a hydropower dam in the Greek section of the Aoos/Vjosa River is endangering a unique and fragile ecosystem. A new scientific study underscores the urgent need to establish a minimum flow regime to restore the river’s ecological functions and safeguard its rich biodiversity.

Join us for this webinar to get the newest updates on the Save the Blue Heart of Europe Campaign, dive into the results of the Sarantaporos Science Week 2024 and learn how scientific arguments contribute to the protection of highly intact river systems.

The International Union for Conservation of Nature released an assessment report about the controversial water abstraction project from the Shushica River. The report concluded that the proposed project would severely impact the national park’s biodiversity and fail to comply with IUCN national park standards.

This spring, a team of scientists from the University of Natural Resources and Life Sciences in Vienna traveled to Bosnia-Herzegovina, specifically to the Neretva and Drina rivers. Both rivers are under extreme threat from hydropower development. The aim of the research weeks was to record the spawning populations of Softmouth Trout and Huchen.

From 22 to 28 April 2024, a science delegation from Albania, Austria, Bulgaria, Greece, and Italy collected multidisciplinary data in the partially undiscovered and intact Vjosa Delta. Every observation of this expedition aims to unveil the ecological importance of this area and advocate for its inclusion in the Vjosa Wild River National Park (WRNP) in accordance with IUCN standards.

This rapid field assessments conducted in Autum 2023 in the National Park Sharr Mountain encompassed an extensive evaluation of fish and macroinvertebrates, with a specific focus on aquatic insects, in the Lepenc River and its tributaries.

Join our open Scientists for Balkan Rivers Webinar on Tuesday, 27th February 2024, at 18:00 CET. We will present and discuss the amazing results of the last two Neretva Science Weeks - more than 2000 species were discovered including several species new to science. Please REGISTER HERE to join this webinar.

Neretva Science Week 2023 took place from May 30th to June 7th. A diverse team of 62 scientists from 17 countries gathered in small town Ulog, to contribute to the conservation of the Neretva river system. Here, we gathered the preliminary results of Neretva Science Week 2023, covering 19 studies or fields of expertise. READ MORE