Ecohydrology Research Group, Department of Earth and Environmental Sciences and Water Institute, University of Waterloo, Waterloo, Canada.
Ecohydrology Research Group, Department of Earth and Environmental Sciences and Water Institute, University of Waterloo, Waterloo, Canada; Programa de Pós-Graduação Oceanografia Ambiental, Department of Oceanography, Universidade Federal do Espírito Santo, Vitória, ES, Brazil.
Mar Pollut Bull. 2019 Dec;149:110562. doi: 10.1016/j.marpolbul.2019.110562. Epub 2019 Sep 26.
Marine debris is widespread in all the world's oceans. Currently little is understood about how marine debris affects the chemistry of the surface oceans, particularly trace elements that can adsorb to the surface of marine debris, especially plastic debris, or be taken up by biofilms and algae growing on the surface of marine debris. Selenium (Se) is a micronutrient that is essential to all living organisms. Average seawater Se concentrations in the modern ocean are <1 nM. Here we measure the concentration of Se in surface water and one deep water sample and the concentration of Se found in algae/biofilms growing on the surface of macro-debris collected in October of 2012. Concentrations of Se in biofilm varied more according to the type of biofilm rather than the type of plastic. However, further Se measurements are needed for more conclusive results.
海洋垃圾广泛存在于世界各大洋中。目前，人们对海洋垃圾如何影响海洋表面化学，特别是痕量元素，如何吸附在海洋垃圾表面，特别是塑料垃圾上，或被生物膜和海洋垃圾表面生长的藻类吸收，知之甚少。硒(Se)是所有生物必需的微量元素。现代海洋中海水硒的平均浓度<1nm。在这里，我们测量了 2012 年 10 月收集的表面水和一个深海样本以及生长在大块碎片表面的生物膜/藻类中的硒浓度。生物膜中的硒浓度更多地取决于生物膜的类型，而不是塑料的类型。然而，需要进行更多的硒测量才能得出更有结论性的结果。
