Species Diversity and Trophic Structure of Macrobenthos Communities in Lagoon Ecosystems (Kandalaksha Bay, White Sea)статья
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Дата последнего поиска статьи во внешних источниках: 1 февраля 2021 г.
Аннотация:The species composition and spatial and trophic structure of the macrobenthos were studied inseveral lagoon ecosystems (Kandalaksha Bay, White Sea). The main changes in the species diversity and trophic structure were observed with regard to the sea level, from the upper littoral to the middle and lower lit-toral, and then to the sublittoral. The macrobenthic communities of lagoons more strongly protected fromthe sea (lagoons of Ermolinskaya Inlet and those in the inner part of Kislaya Inlet located near ErshovskoeLake) were characterized by the most similar species composition and trophic structure in the tidal zone; incontrast, the most pronounced differences in the sublittoral were observed for the macrobenthic communitiesof the lagoons more exposed and thus more connected to the sea (lagoon ecosystems in the inner part of Kis-laya Inlet). As the connection of the lagoon to the sea decreases, the sedimentation rate, the siltation of sed-iments, and water desalination grow; the diversity of trophic groups decreases accordingly. The number ofdetritophagous species increases gradually.