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
作者： Liu, Hongbo 1 ; Chen, Xiubao 1 ; Su, Yanping 1 ; Kang, Ik Joon 2 ; Qiu, Xuchun 3 ; Shimasaki, Yohei 3 ; Oshima, Yuji 3 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Fishery Ecol Environm Assessment & Resour, Freshwater Fisheries Res Ctr, Wuxi 214081, Peoples R China
2.Kyushu Univ, Int Student Ctr, Fukuoka 8128581, Japan
3.Kyushu Univ, Aquat Biomonitoring & Environm Lab, Lab Marine Environm Sci, Dept Biosci & Biotechnol,Fac Agr, Fukuoka 8128581, Japan
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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