Preliminary results of investigations related to the ecology of Urdari open-pit lake

Flooding the remaining gaps of lignite open-pits and formation so-called open-pit lakes tends to become an increasingly common practice in Romania (in Oltenia Mining Basin, where deposit contained Dacian Romanian formations was is extracted through open-pits). This type ecological reconstruction former exploitation areas has been applied worldwide for quite a time, there are many references this regard scientific literature. In context, present paper aims some preliminary results regarding ecology these lakes, being taken as case study lake formed gap Urdari open-pit, within Rovinari Basin. However, given multitude similar conditions (bioclimate, geological framework, gaps, etc.) which they form, we appreciate that conclusions can be extrapolated other area (eg. South Peșteana). We point out from outset presents data on existing biotope biocenoses (restricted species identification), without going into details about populations, ecosystem production, energy matter flows it, investigations foreseen future development stage study.