Macrophytes of the Hungarian lower Danube valley (1498-1468 river-km)
Janauer, Georg A.; Steták, Dóra
Aquatic vegetation was surveyed in the main channel of the River Danube near Baja (southern Hungary) in the "Gemenc" National Park and in an irrigation and drainage canal system on the left bank of the river. The main river was species-poor, compared to the oxbows and the canals, in which more species and much greater plant mass developed. Characteristic features were identified with regard to Relative Plant Mass, a measure of dominance, and the Mean Mass Index, which indicates the distribution pattern of species in a system. This is the first quantitative survey, which may form the baseline for future comparative investigations of the development of the aquatic vegetation in this section of the River Danube.