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首页> 外文期刊>Biology Bulletin >Peculiarities of the Structure of and Trends in the Macrobenthos Community of the Ermolinskaya Bay Lagoon Ecosystem, Kandalaksha Bay, White Sea
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Peculiarities of the Structure of and Trends in the Macrobenthos Community of the Ermolinskaya Bay Lagoon Ecosystem, Kandalaksha Bay, White Sea

机译：白海坎达拉克夏湾，Ermolinskaya湾泻湖生态系统的大型底栖动物群落的结构和趋势

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The species composition and spatial and trophic structures of the macrobenthos communities of the Ermolinskaya Bay were studied, and the main changes that had occurred since previous explorations (the 1960s) were analyzed. The most significant changes in the spatial structure of the macrobenthos community (species diversity, population density and biomass, and similarities of the species' distribution) were observed with regard to the sea level zone: the most pronounced at the upper littoral, followed by the middle littoral, lower littoral, and sublittoral. The longitudinal gradient of the community structure (from the innermost area seaward) was pronounced less strongly. Altogether, four macrobenthos communities can be identified in Ermolinskaya Bay; they differ in species composition, diversity, population density and biomass, and trophic structure: (1) community of the upper littoral with the dominance of collecting deposit feeders, Hydrobia ulvae, and scrapers, Littorina saxatilis; (2) community of the middle littoral with the prevalence of deposit feeders, Hydrobia ulvae and Macoma balthica, seston feeders, Mya arenaria, and, to a lesser extent, Mytilus edulis; (3) community of the lower littoral with the domination of the filtering organisms, Mytilus edulis, to a lesser extent collecting deposit feeders, Hydrobia ulvae and Macoma balthica, and scrapers, Littorina littorea; and (4) community of the sublittoral, where the leading positions belong to the group of collecting deposit feeders, Macoma balthica, to a lesser extent also Hydrobia ulvae (in the innermost area) and Capitella capitata, Arenicola marina (in the marine part of the bay). The gradual siltation of the bay and the reduction of its connection to the sea have led to the development of a littoral complex of species in the sublittoral, whereas the species typical at the sublittoral in the 1960s are now mainly found at the outlet of the bay.
机译：研究了埃尔莫林斯卡亚湾大底栖动物群落的物种组成，空间和营养结构，并分析了自先前的勘探（1960年代）以来发生的主要变化。在海平面区域，大型底栖动物群落的空间结构发生了最显着的变化（物种多样性，种群密度和生物量，以及物种分布的相似性）：沿岸最明显，其次是海底。滨海中部，滨海中部和滨海中部以下。群落结构的纵向梯度（从最内层区域向海）明显减弱。在Ermolinskaya湾中总共可以发现四个大型底栖动物群落。它们在物种组成，多样性，种群密度和生物量以及营养结构上各不相同：（1）沿岸上层群落，主要集中在沉积物饲养者水飞蛾（Ultrabia ulvae）和刮板（Littorina saxatilis）。 （2）沿岸中部的群落，普遍有沉积物饲养者，水和Macoma balthica，seston饲养者，Mya arenaria，以及程度较轻的食用Mytilus。 （3）沿岸下层的群落，主要为可过滤的生物，即紫花菌（Mytilus edulis），在较小程度上收集沉积物饲养者，斜纹夜蛾（Hiabia ulvae）和Macoma balthica，以及刮板（Littorina littorea）； （4）沿海沿岸社区，领导地位属于收集沉积物饲养者，Macoma balthica，在较小程度上还包括水bia，在最内层； Capitella capitata，Arenicola marina（在海域）海湾）。海湾逐渐淤积并减少了与海洋的联系，导致了沿海沿岸物种的沿海综合体的发展，而1960年代次沿海沿岸典型的物种现在主要在海湾出口处发现。

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