Aquatic Macrophytes Composition in Lentic Water Bodies - Comparison Between the Ecoregions in Bulgaria - page 01

Material and Methods

The transect method has been used in the studied water bodies (Fig. 1). Macrophytes have been collected along 4-10 transects of 50 to 100 meters each at different parts of the lake/reservoir, in relation to the water body size. The samples were collected between June and September, 2009 to 2014 in accordance with the altitude of the water bodies. The voucher specimens are deposited in the Herbarium of Sofia University St. Kliment Ohridski (SO).

Determination of the plants follows the main generalizing editions for the Bulgarian flora (Jordanov, 1963-1979; Velchev, 1982-1989; Kozuharov, 1992; 1995; Delipavlov & Češmedžiev, 2003; Assyov et al., 2012; Kozuharov & Anchev, 2012).

The localities are indicated on an UTM Grid map of Bulgaria (Scale 1:1500 000, 10 km square) (Fig. 1).

Figure 1: A UTM grid map of Bulgaria showing the location of the investigated water bodies (Scale bar 1: 1 500 000, 10 km2).


Result and Discussion

Up to now we have investigated 110 standing water bodies (lakes and reservoirs) situated at different altitudes, from sea level to 2535 m a.s.l., and on the territories of the two ecoregions in Bulgaria – Pontic Province (12) and Eastern Balkans (7).

So far, 99 species of aquatic plants were found (Table 1), belonging to 65 genus and 40 families.