Effects of Calcium and Magnesium Ions on Acute Copper Toxicity to Glochidia and Early Juveniles of the Chinese Pond Mussel Anodonta woodiana

文献类型： 外文期刊

第一作者： Liu, Hongbo

作者： Liu, Hongbo;Chen, Xiubao;Su, Yanping;Yang, Jian;Kang, Ik Joon;Qiu, Xuchun;Shimasaki, Yohei;Oshima, Yuji

作者机构：

关键词： Acute copper toxicity; Calcium (Ca2+); Glochidia; Magnesium (Mg2+); Newly-transformed juveniles

期刊名称：BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.151； 五年影响因子：2.129 ）

ISSN： 0007-4861

年卷期： 2016 年 97 卷 4 期

页码：

收录情况： SCI

摘要： We evaluated the effects of calcium (Ca2+) and magnesium (Mg2+) ions on copper (Cu) toxicity to glochidia and newly-transformed juvenile mussels (age 1-2 days) of the Chinese pond mussel (Anodonta woodiana). Acute Cu toxicity tests were performed with glochidia for 24 h and juveniles for 96 h with measured Ca2+ concentrations of 1.1, 14, 26, 51, and 99 mg L-1, or measured Mg2+ concentrations of 2.6, 11, 21, and 39 mg L-1. The Ca2+ and Mg2+ cations provided no statistically significant protection against Cu toxicity to glochidia or juveniles. The 24-h EC50 value for glochidia was 82 mu g L-1 Cu, and contrastly, 96-h EC50 value for newly-transformed juvenile mussels was as low as 12 mu g L-1 Cu, implying that the juveniles of A. woodiana are more vulnerable to Cu contamination at concentrations close to currently-accepted levels.

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