The species composition, ecological and taxonomic structure, quantitative characteristics and variability of phyto-fouling of the coastal hydrotechnical structure (Kruglaya Bay, Sevastopol) in spring, summer and autumn were studied. The taxonomic composition of fouling is represented by 45 species of 29 genera, 19 families, 12 orders, 4 classes of the divisions Chlorophyta, Ochrophyta and Rhodophyta. The taxonomic leaders of the community are Rhodophyta, Cladophorales, Ceramiales, Ulvaceae, Cladophoraceae, Ceramiaceae, Ulva, Cladophora, Ceramium, ecological — marine, leading, annual and oligosaprobic species. The fouling is dominated by species with a high and medium frequency of occurrence. Most of the proportions of taxa and ecological groups are most resistant. The taxonomic diversity of the entire phyto-growth, its Rhodophyta, constant flora nucleus, minor species and some ecogroups, the occurrence of species, phytomass, the degree of community discreteness and the qualitative composition of its production dominants and subdominants are subject to seasonal fluctuations. Each season, the variability of the species composition corresponds to the norm for biological objects, the degree of variability of the phytomass is higher.
SEASONAL CONDITIONS OF PHYTO-FOULING OF A COASTAL PROTECTION HYDROTECHNICAL STRUCTURE (KRUGLAYA BAY, BLACK SEA)
