Department of Biology, Ecophysiology, Biochemistry and Toxicology Group, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
Environ Pollut. 2010 May;158(5):1381-91. doi: 10.1016/j.envpol.2010.01.001. Epub 2010 Jan 29.
The present study evaluates the relationship between Acid Volatile Sulfides (AVS) and metal accumulation in invertebrates with different feeding behavior and ecological preferences. Natural sediments, pore water and surface water, together with benthic and epibenthic invertebrates were sampled at 28 Flemish lowland rivers. Different metals as well as metal binding sediment characteristics including AVS were measured and multiple regression was used to study their relationship with accumulated metals in the invertebrates taxa. Bioaccumulation in the benthic taxa was primarily influenced by total metal concentrations in the sediment. Regarding the epibenthic taxa metal accumulation was mostly explained by the more bioavailable metal fractions in both the sediment and the water. AVS concentrations were generally better correlated with metal accumulation in the epibenthic invertebrates, rather than with the benthic taxa. Our results indicated that the relation between AVS and metal accumulation in aquatic invertebrates is highly dependent on feeding behavior and ecology.
本研究评估了具有不同摄食行为和生态偏好的无脊椎动物体内酸可挥发性硫化物（AVS）与金属积累之间的关系。在 28 条佛兰德低地河流中采集了天然沉积物、孔隙水和地表水，以及底栖和附着无脊椎动物。测量了不同的金属以及金属结合沉积物特性，包括 AVS，并使用多元回归来研究它们与无脊椎动物分类群中积累的金属之间的关系。底栖分类群中的生物积累主要受沉积物中总金属浓度的影响。对于附着生物分类群，金属积累主要由沉积物和水中更具生物利用性的金属部分解释。AVS 浓度通常与附着无脊椎动物体内的金属积累相关性更好，而与底栖生物分类群相关性较差。我们的结果表明，AVS 与水生无脊椎动物体内金属积累之间的关系高度依赖于摄食行为和生态。
