Some features of the structure and species diversity of the macrobenthos community in the coastal lagoon ecosystems (Kandalaksha Bay, White Sea)
It is studied and analyzed the characteristics of the species composition, structure and diversity of macrobenthic subtidal communities in 4 coastal lagoon ecosystems of the White Sea. In the subtidal zone of the studied lagoons were found with 40 species of zoobenthos and 3 species of macrophytes ( Zostera marina, Cladophora sericea, Fucus vesiculosus ). The highest species diversity, total density and biomass of macrobenthos is characterized by the lagoon, located closer to the sea (at the exit of the corner region of the Kislaya lip) and the least - lagoon adjacent to the lake Ershovskoye. An intermediate position was occupied by a lagoons Ermolinskya and Green Cape. At the analysis dendrograms of the similarity of the macrobenthos communities studied lagoons revealed high similarity of the macrobenthos in lagoon ecosystems with similar geomorphology and water exchange with the sea water. The stronger the lagoon was regulated and, accordingly, the less was its connection with the sea, the more was found of the littoral euryhaline marine and brackish species and less-subtidal marine species.