Abstract

Our study has been conducted along the coastline of the eastern Gulf of Finland for three years. It had been shown that accumulation of algal biomass caused by the “green tide” events significantly influenced the metal distribution in the surface sediments. Metal concentrations differed significantly under algal mats and at the sites, which were free of algae. Our study showed significant changes in metal concentrations (Zn, Cd and Pb) along the coast in study years, which, in our opinion, reflect influence of the ports Vysotsk and a new one—Bronka. Principal component and classification analysis extracted two main factors, which can be interpreted as a factors related to the distance from a river mouth and to the input from the new anthropogenic sources. Taking into account a global climate change and the results of our study, we may conclude that in the future extended macroalgal blooms may provoke intense sediment contamination by organic matter and associated metals.

中文翻译：

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“绿色潮汐”会影响沿海沉积物中的金属分布吗？芬兰东湾波罗的海案例研究

摘要

我们的研究已经在芬兰东部海湾的海岸线上进行了三年。已经表明，由“绿潮”事件引起的藻类生物量的积累显着影响了表层沉积物中的金属分布。在没有藻类的藻垫下和部位，金属浓度差异显着。我们的研究表明，在研究年份中，沿海金属浓度（Zn，Cd和Pb）发生了显着变化，我们认为这反映了维索茨克港口和一个新港口Bronka的影响。主成分分析和分类分析提取了两个主要因素，这可以解释为与距河口的距离和来自新的人为来源的输入有关的因素。考虑到全球气候变化和我们的研究结果，