Transylv. Rev. Syst. Ecol. Res. 12, (2011), "The Wetlands Diversity" 91 THE DANUBE IN SERBIA – ECOLOGICAL STATUS AND MANAGEMENT ISSUES Ana BORISAVLJEVIC * * University of Belgrade, Faculty of Forestry, Kneza Viseslava 1, Belgrade, Serbia, CS-11030,
[email protected],
[email protected] KEYWORDS: flora, fauna, ecological status, bioindicators, hydromorphological alterations, management, Danube. ABSTRACT Many stretches of the river Danube have lost their ecological value in recent decades as a result of anthropogenic pressure from intensive agriculture, new infrastructure projects, more intensive navigation and the construction of hydro-power plants. The greatest alterations have happened in recent decades also in the investigation area, which is a part of the Middle Danube, from 1,433 to 845 km, and extends into Serbia. The content of this review paper is based on the analysis and use of topographical maps, data on waterline and discharges for five hydrological stations on the Danube in Serbia, analysis of the floral and faunal bioindicators, and a review of relevant literature. We describe indications of ecosystem alterations, following which we offer discussion on management issues, and make recommendations and comments. This paper synthesizes existing knowledge on the Danube in Serbia and, at the same time, warns of proposals that can become real projects that may have extreme adverse consequences for the Danube ecosystem. ZUSAMMENFASSUNG: Die Donau in Serbien ‒ ökologischer Zustand und Managementfragen. In den letzten Jahrzehnten haben viele Abschnitte der Donau unter dem Druck menschlicher Tätigkeiten durch intensive Landwirtschaft, neue Infrastrukturprojekte, intensivere Schifffahrt und den Bau von Wasserkraftwerken ihren ökologischen Wert verloren. Derartige, große Veränderungen fanden in den letzten Jahrzehnten auch in dem untersuchten Donauabschnitt statt, der sich als Teil der mittleren Donau in Serbien von Strom-Kilometer 1,433 zu 845 erstreckt.