The Baltic Sea is one of the most polluted seas in the world, with widespread eutrophication and radionuclide contamination. Using key species of the Baltic Sea, the effects of eutrophication on uptake and trophic transfer of the radioactive micronutrients commonly found in nuclear power plant effluents were investigated experimentally using the brown macroalgae Fucus vesiculosus and the grazers Idotea balthica and Theodoxus fluviatilis in a controlled environment. Rapid uptake of ⁵⁴Mn, ⁵⁷Co, and ⁶⁵Zn from water was observed in all biota; and eutrophication combined with grazing pressure strongly influenced the uptake in F. vesiculosus. Uptake of ⁵⁴Mn, ⁵⁷Co, and ⁶⁵Zn to I. balthica and T. fluviatilis grazing on F. vesiculosus were also observed. The results indicate that ecosystems could be open for further trophic transfer as radionuclides accumulate quickly in the producers and are transferred to primary consumers. Environ Toxicol Chem 2021;40:1694–1705. © 2021 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

中文翻译：

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浅层底栖食物网中放射性微量营养素的营养转移


波罗的海是世界上污染最严重的海洋之一，普遍存在富营养化和放射性核素污染。利用波罗的海的关键物种，在受控环境中使用棕色大型藻类Fucus vesiculosus和食草动物Idotea balthica和Theodoxus Fluviatilis ，通过实验研究了富营养化对核电站废水中常见的放射性微量营养素的吸收和营养转移的影响。所有生物群均观察到从水中快速吸收⁵⁴ Mn、 ⁵⁷ Co 和⁶⁵ Zn；富营养化和放牧压力强烈影响了F. vesiculosus的吸收。还观察到吃F. vesiculosus的I. balthica和T. Fluviatilis对⁵⁴ Mn、 ⁵⁷ Co 和⁶⁵ Zn 的吸收。结果表明，随着放射性核素在生产者中迅速积累并转移到初级消费者，生态系统可能会开放以进行进一步的营养转移。环境毒理学化学2021；40：1694–1705。 © 2021 作者。环境毒理学和化学由 Wiley periodicals LLC 代表 SETAC 出版。