In accordance with archeological finds, peoples living along the river Danube thousand years ago, already in the prehistorical age, used to catch fishes mainly sturgeons (Russian sturgeons and Acipenser huso-s) migrating in large quantities from the Black Sea. For instance, on the area called Kisalföld, to be more precise from the copper age locality of Szabadrét-domb in Győr, some bones of sturgeons were found. The first documents of fishing prove that in the 1st century the Romans stationed on the area of the Danube already found a developed technique of catching sturgeons along the river. In the history of the Hungarian fishing, which used to be very famous all over Europe, the sturgeons (mainly the Acipenser huso and Acipenser gueldenstadti) had an outstanding importance. In the 13th -16th century the very profitable and the more and more intensive sturgeon fishing started to be beyond the supply of the stocks which in the 18th century resulted in considerable decline of catching. In the last century the occurrence of the Russian sturgeon was proved only by sporadic data in the Carpathian basin. In the 1960s their appearances were recorded three times on the Slovak part of the Danube on the area between Komárom and Szob. In 1970 a sturgeon was caught at the town Paks and one was also recorded from the river Tisza, Tiszafüred, in 1980, but in accordance with our knowledge since 1970 in the section of the Hungarian Danube this kind of fish was found only in the area of Szigetköz in 1997 and 1999. However, in the last few years some sturgeons were caught in August not only at the village Dunakiliti (1841 river km) but also at the village Gönyü (1791 river km). At present they are kept in the collection of the Museum of Science in Budapest.

In the downfall of the stock of sturgeons in the Middle Danube played an important role not only the ruthless fishing but also the water barrages at Vaskapu. The migration of the sturgeons towards the Middle Danube area is restricted considerably by the Vaskapu I. and Vaskapu II. barrage built at the 942 and the 863 river km sections. The first was put into operation in 1970 the second one has been operating since 1984. The sturgeons migrating from the Black Sea upwards, at present try to find spawning-ground in the lower-Danube section. Because of the long-lasting Danubian flood waves this year the sluices of the weirs at Vaskapu were kept open for longer, so some sturgeons migrating upwards could get up to the Middle Danube by chance.

Today it is a very typical effort to protect the destroying natural values like protection of the fish fauna of our rivers. In our opinion, the good ecological state of the Danube, or the river Tisza which had a cyanide poisoning, would be expedient to reach with the returning of the sturgeons. The occurrences of the Russian sturgeon in the Szigetköz section confirm those conceptions which say that it is worth dealing with the reconstruction of the stock of the endangered sturgeons in the Danube.

On the basis of it, some Hungarian specialists (biologists, water engineers) in 1998 started to establish such a researching/developing base in the framework of the Deposit Company called Viza/Sturgeon 2020, to which both national and international organizations also could join. Their aim is to re-establish river continuum on the catchments area of the Danube and to rehabilitation of the water habitats connected with the rivers.