Biandolino Francesca, Prato Ermelinda, Grattagliano Asia, Libralato Giovanni, Trifuoggi Marco, Parlapiano Isabella
National Research Council, Water Research Institute (IRSA-CNR), Via Roma, 3, 74123 Taranto, Italy.
Department of Chemical Sciences and Technologies, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 1, 00133 Roma, Italy.
J Xenobiot. 2024 Dec 4;14(4):1919-1929. doi: 10.3390/jox14040102.
The present study focused, for the first time, on the adverse effects of nine REEs on the marine copepod For this purpose, copepod mortality, immobilization, and naupliar development were assessed. Overall, the results demonstrated that all REEs tested exerted significant adverse effects on , with LC50 values ranging from 0.56 to 1.99 mg/L. Concentration-dependent increases in mortality and immobilization for all tested REEs were observed. Following exposure of nauplii to REEs, a significant slowing of nauplii development was shown with all REEs tested. The results obtained clearly highlight the potential toxicity of REEs, and, in particular, of Lanthanum, which could have consequences on the survival and development of , affecting the copepod population.
本研究首次聚焦于九种稀土元素对海洋桡足类动物的不利影响。为此，评估了桡足类动物的死亡率、固定化情况以及无节幼体的发育。总体而言，结果表明所有测试的稀土元素均对[桡足类动物]产生了显著的不利影响，半数致死浓度（LC50）值在0.56至1.99毫克/升之间。观察到所有测试稀土元素的死亡率和固定化情况均呈浓度依赖性增加。在无节幼体暴露于稀土元素后，所有测试的稀土元素均显示出无节幼体发育明显减缓。所获得的结果清楚地凸显了稀土元素，尤其是镧的潜在毒性，这可能会对[桡足类动物]的生存和发育产生影响，进而影响桡足类动物种群。
