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Ecology Vol.24, No.4, p.368-384, 2005
|Title: THE DISTRIBUTION OF AQUATIC MACROPHYTES IN MAN-MODIFIED WATERBODIES OF THE DANUBE RIVER IN BRATISLAVA REGION (SLOVAKIA)|
|Author: MARTIN JURSA, HELENA OŤAHEĽOVÁ|
|Abstract: In course of our survey of aquatic vegetation, 49 species (Table 1) in three different man-modified waterbodies – two altered river-arms of the Danube river and one seepage canal – in the area of Bratislava city were evaluated in 2000–2001. The greatest impact on the richness of species diversity was caused by the loss of connectivity with the Danube river system. A continuous
type of macrophyte distribution prevailed in the canalised bed. Timing of flood disturbances and historical genesis of the habitats have reflected in proportion of growth forms. The submersed hydrophytes dominated in the most recently created aquatic habitat, alternating with the local patches of acro-pleustophytes. The higher presence of floating leaf rhizophytes was recorded in
more advanced successive stages. To retard the process of succession towards the terrestrial ecosystem, future management should consider the restoration of flow conditions in analysed habitats.
|Keywords: aquatic plants, monitoring, the Danube river, Bratislava region|
|Year: 2005, Volume: 24, Issue: 4||Page From: 368, Page To: 384|