Centro de Estudos do Mar, Universidade Federal do Paraná, Caixa Postal 61, 83255-976 Pontal do Sul, Pontal do Paraná, PR, Brazil.
Mar Pollut Bull. 2012 Dec;64(12):2681-91. doi: 10.1016/j.marpolbul.2012.10.007. Epub 2012 Nov 6.
The effects of diesel oil on benthic associations from unvegetated tidal flats in a subtropical estuary were experimentally evaluated using a Multivariate Before and After/Control and Impact Model (M-BACI). Impacted treatments were contrasted with controls in 14 successive periods before and after the oil spill. An acute effect was recorded just after the impact, but the recovery to pre-disturbance population levels was extremely fast. The increase in the total density of the benthic community after the disturbance was the result of an increase in the densities of Heleobia australis, oligochaetes, and ostracods, observed in both impacted and control treatments, as a reflection of background variability and not the presence of the contaminant. The experimental spill had little influence on the biological descriptors of the benthic associations, which were resilient or tolerant to oil disturbance at the temporal (147 days) and spatial (cm²) scales used in the experiment.
使用多变量前-后/对照和影响模型（M-BACI）实验评估了亚热带河口无植被潮滩底栖生物对柴油的影响。在溢油前后的 14 个连续时期内，对受影响的处理与对照进行了对比。溢油后立即记录到了急性影响，但恢复到干扰前的种群水平的速度非常快。干扰后底栖生物群落总密度的增加是由于在受影响和对照处理中都观察到的南方拟滨螺、寡毛类和介形类密度的增加，这反映了背景变异性，而不是污染物的存在。实验溢油对底栖生物群落的生物描述符影响很小，这些描述符在实验中使用的时间（147 天）和空间（cm²）尺度上对石油干扰具有弹性或耐受性。
