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daNUbs was a mulitnational EU research project carried out under the leadership of the Technical University of Vienna. The results from this project include estimates of nutrient inputs into the river network (MONERIS), as well as an assessment of the loads of nitrogen, phosphorus and silica transported via the river network. These results indicate that the nutrient status in the Black Sea has significantly improved since the 1980s.

The DABLAS (Danube - Black Sea) Task Force is a successful example of providing a platform between International Funding Institutions, donors and beneficiaries to support cooperation and to leverage investment projects for the protection of water and water-related ecosystems of the Danube and Black Sea.

The ecological state of the coastal waters of the Western Black Sea has improved significantly since the late 1980s and early 1990s. These improvements are based on reduced nutrient inputs which have led to reduced eutrophication and fewer algal blooms, ecovery of animal populations on the seaflor and an improved regeneration of macrophytes.

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 Black Sea Commission is an intergovernmental organisation responsible for the implementation of the Convention on the Protection of the Black Sea against Pollution, and sets the legal framework required for regional cooperation and the activities necessary to reduce pollution and enhance the protection of the marine environment.

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.