Search Results

Rivers, lakes, transitional and coastal waters, as well as groundwater, are vital natural resources. A significant proportion of water resources are exposed to environmental pollution or other potentially damaging pressures. Protecting and improving the waters of the Danube River Basin is therefore essential for the natural environment, the sustainable development of the region and the long-term health, well-being, and prosperity of the population.

We Pass was an initiative aiming to facilitate fish migration in the Danube River Basin, set up by the ICPDR, Jaroslav Černi Institute, DDNI, CDM SMITH, OAK Consultants, and the Norwegian Institute for Nature Research. The focus was on the preservation and reestablishment of endangered fish species migration routes in the Danube River, its tributaries, and specifically at the Iron Gates.

Sturgeons and other migratory fish species represent a historic, economic and natural heritage of the Danube River Basin and are indicators of the ecological status of aquatic ecosystems, especially of the functionality of ecological corridors. Their populations have suffered substantially from overfishing, pollution, habitat destruction and disruption of their migration routes. The need for their conservation is recognized at a high political and management level (EUSDR-PA 06, Biodiversity, DRBMP).

With a national territory of 87,609 km2, Croatia is at the intersection of the Pannonian Plain, the Balkans and the Adriatic. The country straddles the border of two major catchment areas: the Danube Basin and the Adriatic Sea. Draining over 62% of Croatia’s mainland, the Danube Basin covers the northern and central inland section of the country and is home to 69% of the population. Croatian territory accounts for 4.4% of the entire Danube Basin.

The floodplains and wetlands of the Danube basin are uniquely valuable ecosystems in global terms, although few areas are still in their natural or near-natural state.

The waters of Bosnia and Herzegovina are split between the Danube River Basin District and the Adriatic Sea Basin. Some 40.2% of the Sava river sub-basin, the second largest sub-basin of the Danube River Basin, lies in Bosnia and Herzegovina. The rest of the watershed is shared by Croatia, Serbia and Slovenia.

The Sava is the Danube's largest tributary of the Danube in terms of discharge and the second largest in terms of catchment area. The Sava is shared by Slovenia, Croatia, Bosnia and Herzegovina, Serbia and Montenegro. The joint management arrangements acted as a pilot for the implementation of the European Union's Water Framework Directive for the Danube and Europe.

Since the 16th century, people have been changing the natural course of the rivers in the Danube River Basin, mainly for flood defence, hydropower generation and navigation. All these changes affect the ecological quality of the rivers. Changes in the depth or width of a river typically reduce flow rates, interrupting natural sediment transportation as well as the migration routes of animals.