For decades of human activity, particularly in the second half of the 20th century a large load of metals has been deposited in sediments of water bodies. It is important to identify processes determining their origin, pathways, distribution, and seasonal dynamics. This was studied in the Vistula Lagoon, second largest lagoon of the southern Baltic. A significant effect of wind on the magnitude and variability of concentrations of metals in the shallow lagoon was observed. It determined the supply of the elements from land (mainly Mn, Zn, U, Co) and distribution within salty Baltic waters (Co, V) from more polluted areas. Another process affecting circulation of metals in estuaries was flocculation. It contributed to vertical transport of Pb, Al, Fe, Mn, Cd, and Be to the sediment surface. Changes in their concentrations were observed, largely due to their remobilisation from land and sediments. It may consequently allow their inclusion into the food-web, particularly: Pb, U, Co, Be, Zn, Se, Cr, Sr, Ca, Al, Fe, Ni and Mg. The amount and type of accumulated metals in the cells were different for each phytoplankton group and cell size. The critical role was played by cyanobacteria algae . Not consumed degrading organic matter becomes a source of dissolved Pb, Ni and Mn in water.

中文翻译：

---

浮游过滤器在半封闭泻湖（波罗的海南部）水中金属分布中的作用

几十年来，特别是在 20 世纪下半叶，大量金属沉积在水体沉积物中。确定决定其起源、途径、分布和季节动态的过程非常重要。这是在波罗的海南部第二大泻湖维斯瓦泻湖进行的研究。观察到风对浅泻湖中金属浓度的大小和变化有显着影响。它确定了陆地上元素的供应（主要是锰、锌、铀、钴）以及来自污染较严重地区的波罗的海咸水中的元素（钴、钒）的分布。影响河口金属循环的另一个过程是絮凝。它有助于 Pb、Al、Fe、Mn、Cd 和 Be 垂直迁移到沉积物表面。观察到它们浓度的变化，主要是由于它们从土地和沉积物中重新迁移。因此，它可能允许它们纳入食物网，特别是：Pb、U、Co、Be、Zn、Se、Cr、Sr、Ca、Al、Fe、Ni 和 Mg。对于每个浮游植物群和细胞大小，细胞中积累的金属的数量和类型是不同的。蓝藻发挥了关键作用。未消耗的降解有机物成为水中溶解的 Pb、Ni 和 Mn 的来源。