Kola nuclear power plant, which discharges warm water into one of the bays of sub-arctic Lake Imandra, significantly changes the fish habitat, creating temperature gradient from 2 to 8°C compared to water temperature in the other part of the lake. The permeation, metabolism and bioaccumulation of elements in the stenothermal cold-water species (Coregonus lavaretus L.) in warm water impact zone are characterized. One of the main adaptation mechanisms of ionic regulation is the intense metabolism of Na due to the high respiratory activity of whitefish in warmer water. This feature is associated with elevated accumulation of Rb and loss of Se, Mo, and Si. At elevated temperatures, the main metabolic need is caused by Se deficiency. An extensive metabolism of selenoproteins involves risks of toxic effects and bioaccumulation of Hg, As and Cu with an increase of existing stressor or appearance of new ones.

中文翻译：

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鱼类代谢对亚北极伊曼德拉湖热污染的适应

科拉核电站将温水排放到亚北极伊曼德拉湖的一个海湾，显着改变了鱼类的栖息地，与湖泊另一部分的水温相比，产生了 2 至 8°C 的温度梯度。表征了温水影响区的恒温冷水物种（Coregonus lavaretus L.）中元素的渗透、代谢和生物积累。离子调节的主要适应机制之一是由于白鱼在较温暖的水域中的高呼吸活动，Na 的强烈代谢。此特征与 Rb 的积累增加和 Se、Mo 和 Si 的损失有关。在升高的温度下，主要的代谢需求是由硒缺乏引起的。硒蛋白的广泛代谢涉及毒性作用和汞的生物累积风险，