Ghent University (UGent), Laboratory of Environmental Toxicology and Aquatic Ecology, Environmental Toxicology Unit (GhEnToxLab), Jozef Plateaustraat 22, 9000 Ghent, Belgium.
Ghent University (UGent), Laboratory of Environmental Toxicology and Aquatic Ecology, Environmental Toxicology Unit (GhEnToxLab), Jozef Plateaustraat 22, 9000 Ghent, Belgium.
Environ Pollut. 2015 Apr;199:10-7. doi: 10.1016/j.envpol.2015.01.008. Epub 2015 Jan 21.
We studied the uptake of microplastics under field conditions. At six locations along the French-Belgian-Dutch coastline we collected two species of marine invertebrates representing different feeding strategies: the blue mussel Mytilus edulis (filter feeder) and the lugworm Arenicola marina (deposit feeder). Additional laboratory experiments were performed to assess possible (adverse) effects of ingestion and translocation of microplastics on the energy metabolism (cellular energy allocation) of these species. Microplastics were present in all organisms collected in the field: on average 0.2 ± 0.3 microplastics g(-1) (M. edulis) and 1.2 ± 2.8 particles g(-1) (A. marina). In a proof of principle laboratory experiment, mussels and lugworms exposed to high concentrations of polystyrene microspheres (110 particles mL(-1) seawater and 110 particles g(-1) sediment, respectively) showed no significant adverse effect on the organisms' overall energy budget. The results are discussed in the context of possible risks as a result of the possible transfer of adsorbed contaminants.
我们在野外条件下研究了微塑料的摄取情况。在法比荷（法国、比利时和荷兰三国的合称）沿海岸线的六个地点，我们采集了两种海洋无脊椎动物，它们代表了不同的摄食策略：贻贝（滤食者）和沙蚕（沉积食者）。还进行了额外的实验室实验，以评估摄入和转运微塑料对这些物种能量代谢（细胞能量分配）可能产生的（不利）影响。在野外采集的所有生物体内都存在微塑料：贻贝平均含有 0.2 ± 0.3 微塑料 g(-1)，沙蚕平均含有 1.2 ± 2.8 个颗粒 g(-1)。在一项原理验证的实验室实验中，暴露于高浓度聚苯乙烯微球（海水 110 个微球 mL(-1)和沉积物 110 个微球 g(-1)）的贻贝和沙蚕对生物体的整体能量预算没有显示出明显的不利影响。这些结果在考虑到可能因吸附污染物而发生转移的情况下进行了讨论。
