From 2001 to 2008 seasonal changes were investigated in the coastal phytoplankton of the Odessa Bay in the area of the Odessa University biostation («Biostantsia» – monitoring site). The species composition, quantitative characteristics and distribution of phytoplankton at three stations in this area having different hydrodynamics are given. A total of 236 species and infraspecific taxa of microalgae have been revealed. Maximal densities of phytoplankton were registered in May 2008. The small-sized diatom algae Thalassiosira pseudonana Hasle et Heimdal (32%) and blue-green Merismopedia punctata Meyen (45%) dominated. These are the first results received on studies of the impact of hydrotechnical constructions in the Odessa Bay coastal zone on phytoplankton development.
Keywords: Odessa Bay, phytoplankton, microalgae, species composition, hydro-technical constructions, breakwater, Black Sea
Full text: PDF 319K