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ABSTRACT
Recent declines in sea grass distribution in south-western Black sea coast arise the need of understanding microbial community relationships in sea grass beds that might affect the viability of these plants. Several factors and their impact on bacterial community were investigated, including the presence or absence of vegetation, depth into sediment, and a gradient of eutrophication formed from pollution point-source. Amplified Ribosomal DNA Restriction enzyme Analysis (ARDRA) showed similar community profiles, thus demonstrating no difference in dominant bacterial members in connection with vegetation. Although highly diverse, sediment community showed also stable annual tendency. This suggested no effect of anthropogenic impact on the main characteristics of bottom sediments in the Zostera endangered meadows.