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首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >Coastal pollution monitoring: Foraminifera as tracers of environmental perturbation in the port of Boulogne-sur-Mer (Northern France)
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Coastal pollution monitoring: Foraminifera as tracers of environmental perturbation in the port of Boulogne-sur-Mer (Northern France)

机译：沿海污染监测：有孔虫，作为滨海布洛涅港（法国北部）环境扰动的示踪剂

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摘要

Benthic foraminifera are increasingly used as environmental indicators of natural and/ or anthropogenic stress in coastal and marginal marine settings. A study of both living (Rose Ben-gal stained) and dead foraminifera was carried on 317 sediment samples collected in the port of Boulogne-sur-Mer (France). Here we present an initial status report on the port ecosystem as re-corded from a selected set of sediment samples that cover the full range of habitats within the port. A surprisingly high diversity assemblage of benthic foraminifera was recovered, reflecting the varied habitats within the port. Among the total of 82 species recorded, 34 were found alive (rose Bengal stained). Four key species were identified as potential bioindicators and analyzed with regard to their distribution and correspondence with environmental parameters (sediment grain size, organic carbon content and heavy metal concentration, Cr, Cu and Zn). The benthic foraminifera Haynesina germanica and Bolivina pseudoplicata were found to live particularly well within the innermost parts of the port basins where the highest concentrations of organic carbon and heavy metals occur. Elphidium excavatum and E. magellanicum are well represented in the external parts of the port and can be considered as indicators that tolerate certain threshold values of pollution and environmental stress. As the port is located in an estuarine setting, the relationship between the key indicator taxa for pollution and natural environment is discussed. This study emphasizes the need to address the anthropogenic impact on coastal environments by screening the ubiquitous record of foraminiferal protists as precision tools for bio-monitoring.
机译：底栖有孔虫越来越多地用作沿海和边缘海洋环境中自然和/或人为胁迫的环境指标。对在法国布洛涅河畔默尔港收集的317个沉积物样本进行了活的（有玫瑰的Ben-gal染色）和死的有孔虫的研究。在这里，我们根据选定的一组沉积物样本（涵盖了港口内所有栖息地）重新记录了港口生态系统的初始状态报告。底栖有孔虫的多样性令人惊讶地高多样性，这反映了港口内不同的生境。在总共记录的82个物种中，有34个被发现还活着（孟加拉红染色）。确定了四个关键物种作为潜在的生物指示剂，并对其分布和与环境参数（沉积物粒度，有机碳含量和重金属浓度，Cr，Cu和Zn）的对应关系进行了分析。人们发现底栖有孔虫德国海耶斯纳和假山毛虫在港口盆地最里面的有机碳和重金属含量最高的地区生活得特别好。港口周边地区很好地代表了无花果蚜虫和麦哲伦大肠杆菌，它们可以被认为是可以承受一定程度的污染和环境压力阈值的指标。由于该港口位于河口环境中，因此讨论了污染的主要指标分类单元与自然环境之间的关系。这项研究强调需要通过筛选普遍存在的有孔虫生物作为精确的生物监测工具来解决对沿海环境的人为影响。

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