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

Hongbo Liu, Xiubao Chen, Yanping Su, Ikjoon Kang, Xuchun Qiu, Yohei Shimasaki, Yuji Oshima, Jian Yang

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Abstract

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 μg L−1 Cu, and contrastly, 96-h EC50 value for newly-transformed juvenile mussels was as low as 12 μg L−1 Cu, implying that the juveniles of A. woodiana are more vulnerable to Cu contamination at concentrations close to currently-accepted levels.

Original languageEnglish
Pages (from-to)504-509
Number of pages6
JournalBulletin of Environmental Contamination and Toxicology
Volume97
Issue number4
DOIs
Publication statusPublished - Oct 1 2016

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All Science Journal Classification (ASJC) codes

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

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