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Vienna, 1 July 2025 (Motto am Fluss) - Held every six years, the Joint Danube Survey (JDS) builds on the legacy of its predecessors and brings together experts from across the Danube River Basin and beyond for its implementation. The Survey conducts the most comprehensive scientific analysis of Europe’s second-longest river. Today marks the official launch of the fifth edition of this unique initiative: JDS5.

Eight Danube countries participated in a specialised course to learn methods of
analysing biological quality elements that would be compliant with the EU Water
Framework Directive. Sharing this information ensures that all countries across
the basin can reach the goals of the directive.

A recently completed survey of the Danube Delta region will significantly improve
knowledge about water quality, the environment, current management
of water resources and human activities in the region.

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