Relation between macrophyte vegetation and environmental condition in the Ipel' River (Slovakia) - case study
Hrivnák, Richard; Valachovič, Milan; Ripka, Ján
The aquatic macrophyte vegetation along a selected part of Ipel' River and adjacent tributaries situated between Zelené and Pincina villages was investigated in July and August 2000. In the 90 river sections of variable length (2-1000 m; overall length was almost 14.4 km) all macrophytes were mapped and their relative abundance estimated using a standard method. Abiotic variables within each section were also recorded. The distribution of plants was related to the abiotic factors. Three types of floristic-ecological zones (A-C) were recognized: habitat A represents natural meandering parts of river, habitat B represents regulated parts (including short stretches - termed B2 - characterized by weirs), and habitat C represents embanked sections, with slow water flow and thick silt. All types of habitat were characterized in terms of their plants. A total of 22 vascular taxa and 4 bryophytes were found in the study area.