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Living benthic foraminifera in the Lagoon of Venice (Italy): population dynamics and its significance

机译:威尼斯泻湖(意大利)的活底栖有孔虫:种群动态及其意义

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An analysis of the distribution and dynamics of living benthic foraminifera was carried out in the central portion of the Lagoon of Venice between November 1992 and September 1994 through monthly sampling at 12 selected sites. The comparison between population dynamics and biotic and abiotic factors allows for an understanding of the foraminifera response to changes in physical and chemical aspects. The distribution of living assemblages allows distinction between lagoon areas with high productivity, characterized by prevailing indigenous species, and areas with low productivity as those with allochthonous species prevailing. Living assemblages appear to be controlled by phytoplankton and interspecific competition. The comparison between living and total assemblages seems to confirm, in the study area, a present evolution to more marine conditions.
机译:1992年11月至1994年9月之间,通过每月在12个选定地点进行采样,对威尼斯泻湖中部活底栖有孔虫的分布和动态进行了分析。种群动态与生物和非生物因素之间的比较允许了解有孔虫对物理和化学方面变化的反应。生物群落的分布使人们能够区分出以本地优势物种为特征的高生产率泻湖区和以异源物种为优势的低生产率区。活体组合似乎受浮游植物和种间竞争的控制。在研究区域,活体组件和总组件之间的比较似乎证实了当前向更多海洋条件的演变。

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