The Danube-Black sea system, a specific area for Balkans ichthyofauna
1997
Jankovic, D. (Institut za bioloska istrazivanja "Sinisa Stankovic", Beograd (Yugoslavia))
Ichthyofauna of the Balkan Peninsula is very diverse and rich with endemic species. Severe tectonic, geomorphological and climate changes that have occurred in the far past resulted in a wealth of species in the Danube-Black sea hydrographic system and thus contributed to a great biodiversity of the Balkans in particular and of Europe in general. Anthropogenic activities led to an incrrease of the ichthyofauna diversity during a relatively short period of time, frequently with enormously great negative consequences. Construction of hydroenergetic and inland route structures on the Danube and its confluence region made impossible usual fish migrations and changed geographic and ecological range of their distribution, primarily of Acipenseridae and Clupeidae. Present linking of the North Sea and the Black Sea (Rhine-Main-Danube, 1992) will lead to the changes of aquatic communities of the Danube and contribute, to even greater diversity of the ichthyofauna.
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