Energy Online, cilt.1, sa.2, ss.1-8, 2010 (Hakemli Dergi)
Caucasian Region is a twenty five terrestrial “Ecological Region” and “under threaded “ rich biological diversity area in the world. South west part of Caucasus includes north east part of Turkey. This part is mostly mountainous and has many streams. In the paper, we present information on the effects of small hydroelectric power plant (small hydro) constructions on natural water ecosystems of North East Anatolia mountain stream ecosystems. Hydroelectric stations (HES) are shown some environmental and social problems in the region. Especially the information given here is an example now, for available precautions for all types HES constructions in Turkey.