Responses of benthic foraminifera to the 2011 oil spill in the Bohai Sea, PR China.
Responses of benthic foraminifera to the 2011 oil spill in the Bohai Sea, PR China.
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DOI：
10.1016/j.marpolbul.2015.05.020
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发表时间：
2015-07
影响因子：
5.8
通讯作者：
Yan-Li Lei;Tiegang Li;Hongsheng Bi;W. Cui;W. Song;J. Li;C. Li
中科院分区：
文献类型：
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作者：
Yan-Li Lei;Tiegang Li;Hongsheng Bi;W. Cui;W. Song;J. Li;C. Li
2011年发生的渤海漏油事件是中国最大规模的漏油事件。在泄漏现场附近采集了九个沉积物岩心，并在 6 个月后测量了包括多环芳烃 (PAH)、石油、硫化物、有机碳在内的环境因素。每个沉积岩芯的深度间隔为 2 厘米，底栖有孔虫被分成 >150 μm（大）和 63–150 μm（小）尺寸的部分。统计分析表明，活体有孔虫的物种组成受到石油、多环芳烃和硫化物的影响。大型有孔虫比小型有孔虫对油更敏感。异常标本与油类或PAHs呈正相关。然而，小型物种往往具有较高的繁殖率和死亡率。确定了抗污染和机会性类群，以计算有孔虫环境影响指数（FIEI）。 FIEI从低油污染站到高油污染站、从深层到表层沉积物增加，反映了该地区石油污染的影响。
The 2011 oil spill in the Bohai Sea was the largest spill event in China. Nine sediment cores were taken near the spill site and environmental factors including Polycyclic Aromatic Hydrocarbon (PAHs), oils, sulfides, organic carbon were measured 6 months later. Benthic foraminifera were separated into >150 μm (large) and 63–150 μm (small) size fractions for 2-cm depth interval of each sediment core. Statistical analyses suggested that the species composition of living foraminifera was impacted by oils, PAHs and sulfides. Large foraminifera were more sensitive to the oils than the small. Abnormal specimens were positively correlated with oils or PAHs. Small forms, however, tended to have high reproduction and mortality. Pollution-resistant and opportunistic taxa were identified to calculate a Foraminiferal Index of Environmental Impacts (FIEI). The FIEI increased from low to high oil-polluted station and from deep layer to surface sediment reflects the impact of oil pollution in this area.