FLORAL AND ICHTHYOLOGICAL RESEARCHES ALONG THE FLOW OF RIVER CRNA

In this paper are presented floral and ichthyological researches along the flow of river Crna (Black River).River Crna is river in the Republic of Macedonia and is the largest right tributary of the River Vardar. Its length is 207 km. The source of the River Crna, Crna Dupka (Black Hole) is in the mountains of western Macedonia, near the village Zeleznec at an altitude of 760 m. From source to its estuary in the river Vardar, River Crna passes through several municipalities. It is the main recipient of sewage and industrial waste waters from many settlements.The researches were performed in the course of summer period of 2009 from more localities along flow of river Crna, respectively from the source (in village Zeleznec) to village Topolcani. According to our researches in this river ecosystem were evidenced total of 22 different plant species, and 14 different fish species.The obtained results show that the qualitative composition of flora and ichthyofauna in river Crna is diverse and depends of different ecological conditions along the flow of the River.