THE SPATIAL DISTRIBUTION OF MACROPHYTES ON THE DANUBE GALATI - VÎLCOVO SECTOR
Adina Popescu, Daniela Ibanescu, Aurelia Nica
The purpose of this paper aims the spatial distribution of macrophytes on the Danube.
The macrophybenthos is a permanent component of the water but not exclusive of the shore area, fixed on to the substrate through the roots or powerful rhizomes that pervades, in the most cases, the water column coming in contact with the atmosphere.
The macrovegetation coastline is spread in space depending on water depth, with three cenosis plant with different characteristics, namely: flora tough, flora emerged, submerged flora.
The macrophyte sampling was done on the Danube Galati - Vilcovo sector. The macrophyte vegetation sampling was conducted during their maximum development, represented by July 2015, the hottest month of the year. There were identified six species of plants belonging to the same class - Liliopsida but do appear in different orders different families respectively - Haloragaceae, hydrocharitaceae, Butomaceae, Potamogetonaceae and Trapaceae. Macrophytes are poorly presented in all the stations analyzed, except station 6 - Babina Canal, where biomass ranged from 16-124 g /plant SUm.
Key words: macrophytes, species, families, biomass