Vertical distribution of Cyanobacteria of the marine rocky supralittoral of the cape Kilse-Burun (Meganom peninsula, the Black Sea)

The vertical (altitudes at 0.1; 0.3; 0.6; 0.9 and 1.2 m above mean sea level - MSL) distribution of Cyanobacteria in the supralittoral zone Cape Kilse-Burun (Meganom Peninsula) was characterized. A total 20 species have been recorded; their number various altitudes varied from 6 to 9 (minimal MSL). As for systematic composition, Oscillatoriophycidae subclass were found on entire range altitudes. high contribution representatives Synechococcophycidae noted 0.3 0.6 MSL. orders Chroococcales Oscillatoriales dominant MSL; order Nostocales 0.1 Among families, Rivulariaceae family observed all altitudes, with a predominance genera Gloeocapsa , Aphanocapsa Leptolyngbya (with low contribution) recorded almost Only genus Calothrix MSL represented 25.0% 37.5%, respectively. According substrate confinement, microphytes belonged attached ones; benthic mesosaprobiont marine predominated surveyed Brackish-marine (except level) freshwater-brackish over range, while only one freshwater Species cosmopolitan boreal-tropical share latter highest MSL, which is probably due relatively temperature under conditions maximum surf irrigation. features emphasize specificity environmental biotope.