Source of the Danube of Baden): “Danube, the biggest river of Germany, rises at the Martinskapelle in a wild and lonely area of the Black Forest, is called Brege at its origin and forms the river Danube in Donaueschingen where it is unified with the Brigach." (German original: „Donau, der größte Fluß Deutschlands, entspringt bei der Martinskapelle in einer wilden und einsamen Gegend des Schwarzwaldes, heißt am Anfang Brege… und bildet erst in Donaueschingen, wo sie sich mit der Brigach vereinigt, die Donau.“) The identification of the main spring in the uppermost Bregtal (also called Katzensteig) is dependent on a defining convention: Instead of
International Association for Danube Research in the discussion and development of the “Guiding principles on sustainable hydropower development in the Danube Basin” and made major contributions concerning the ecological connectivity of the aquatic ecosystems and the classification of sensitive ecological areas. IAD members are active in the Danube Sturgeon Task Force and also are involved in a number of EU and its "EU Strategy for the Danube Region (EUSDR)" project initiatives. The DSTF aims to coordinate and foster the conservation of native sturgeon species in the Danube River Basin and the adjacent Black Sea by the implementation of the Sturgeon Action Plan adopted under the