The various uses of copper or copper compounds in industrial, biocidal or pesticidal products lead to inputs of the metal into aquatic environments. To assess effects of copper ions on non-target organisms, the freshwater snail Theodoxus fluviatilis was used as test organism for a three-week laboratory experiment. Snails were exposed to four copper concentrations ranging from 4 to 39 µg Cu²⁺/L, and besides mortality, several sublethal parameters were evaluated. Concerning survival, an aqueous copper concentration of 6 µg/L was determined as NOEC, and 16 (± 0.1) µg/L as LC₅₀. Negative sublethal effects on reproduction, activity and pathological modifications in the snails were detected in the treatment with an aqueous copper concentration of 15 µg/L. Our results using T. fluviatilis as a mere grazer exclusively feeding on biofilms contribute to findings that field relevant copper concentrations have a significant effect on non-target organisms in aquatic environments.

中文翻译：

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铜离子对非目标物种的影响：使用Grazer流感嗜虾（Gastropoda：Neritidae）的案例研究。

铜或铜化合物在工业，杀生物或杀虫产品中的各种用途导致金属进入水生环境。为了评估铜离子对非目标生物的影响，将淡水蜗牛Theodoxus fluviatilis用作测试生物，进行了为期三周的实验室实验。将蜗牛暴露在4至39 µg Cu ²⁺ / L的四种铜浓度下，除死亡率外，还评估了几个亚致死参数。关于存活率，测定的铜水溶液浓度为6 µg / L（NOEC），测定为16（±0.1）µg / L（LC _50）。。在铜浓度为15 µg / L的处理中，对蜗牛的繁殖，活动和病理改变产生了负致死作用。我们使用河豚草（T. fluviatilis）作为仅以生物膜为食的单纯放牧者的结果，有助于发现相关的铜浓度对水生环境中的非目标生物具有显着影响。