人为物质污染全球淡水系统,严重的,对水生生物群的持久影响。目前检测痕量金属污染物水平升高的方法通常准确但昂贵,因此不适合需要高空间分辨率的应用。此外,这些方法不是确定长期平均污染浓度的有效解决方案。这是实施生物监测计划作为污染物检测的替代手段的理由。这篇综述总结了有关底栖等足类动物Asellusaquaticus作为淡水系统污染的生物监测器的过去和潜在用途的最新文献。最近的研究表明,Aquaticus非常适合此目的。然而,它生物积累毒素的机制尚未完全了解。特别是,水生环境中共存的痕量金属污染物之间的相互作用直到最近才被考虑,目前尚不清楚生物监测计划应如何适应这些相互作用的影响。很明显,不考虑这些额外的压力因素将导致无效的生物监测计划;因此,为了可靠地预测任何干扰对结果的影响,需要对生物累积机制有全面的了解。
Anthropogenic substances pollute freshwater systems worldwide, with serious, long-lasting effects to aquatic biota. Present methods of detecting elevated levels of trace metal pollutants are typically accurate but expensive, and therefore not suitable for applications requiring high spatial resolution. Additionally, these methods are not efficient solutions for the determination of long-term averages of pollution concentration. This is the rationale for the implementation of a biomonitoring programme as an alternative means of pollutant detection. This
review summarises recent literature concerning the past and potential uses of the benthic isopod Asellus aquaticus as a
biomonitor for pollution in freshwater systems. Recent studies indicate that A. aquaticus is well suited for this purpose. However, the mechanisms by which it bioaccumulates toxins have yet to be fully understood. In particular, the interactions between coexisting trace metal pollutants in the aquatic environment have only recently been considered, and it remains unclear how a biomonitoring programme should adapt to the effects of these interactions. It is evident that failing to account for these additional stressors will result in an ineffective biomonitoring programme; for this reason, a comprehensive understanding of the bioaccumulation mechanisms is required in order to reliably anticipate the effects of any interferences on the outcome.