Features of the Species and Spatial Structure of Macrobenthosin the Green Cape Lagoon (Kandalaksha Bay, White Sea)статья
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Дата последнего поиска статьи во внешних источниках: 4 марта 2022 г.
Аннотация:Features of the species and spatial structure of sublittoral macrobenthic communities in a lagoonecosystem of Green Cape (White Sea) have been studied. Thirty-one invertebrate species and three speciesof sea grasses and algae (Zostera marina, Cladophora sericea, and Fucus vesiculosus) were found in the sublit-toral zone of the surveyed lagoon. The data on the species composition, diversity, and spatial structure ofmacrobenthos communities indicate the predominance of littoral brackish water and marine euryhaline mac-robenthos species (Hydrobia ulvae, Tubificoides benedii, Chironomus salinarius, and Macoma balthica) in thecoastal region of the lagoon, marine littoral and sublittoral euryhaline species (mainly polychaetes Hetero-mastus filiformis, Polydora ciliate, and Capitella capitate) in the central deeper region, and marine sublittoralless euryhaline species (Pontoporeia femorata, Anonyx nugans, Nereimyra punctata, Terebellides stroemi,Astarte montagui, Micronephthys minuta, and Atylus carinatus) at the outlet of the lagoon. The ecosystem ofthe Green Cape lagoon belongs to lagoons heavily separated from the sea with depleted specific fauna (manylittoral species) and largely influenced by the carbon load and salinity. The reduced connectivity of the lagoonwith the sea due to the continued rise of the White Sea coast (4 mm per year in this area) will contribute to adecrease in the species diversity and the dominance of a few small eurytopic invertebrate species resistant toorganic load, oxygen deficiency, and desalination.