Centro de Investigación en Alimentación y Desarrollo, Carretera a la Victoria Hermosillo, México.
Bull Environ Contam Toxicol. 2010 Aug;85(2):209-13. doi: 10.1007/s00128-010-0055-4. Epub 2010 Jun 29.
This study examines seasonal variations in the concentrations of Cd, Cu, Pb, and Hg in experimentally cultured Crassostrea corteziensis, an oyster species known to have high resistance to physical and chemical stressors. The highest levels of Cd (4.92 mg/kg), Cu (3.45 mg/kg), and Pb (0.67 mg/kg) were detected in oyster samples collected during the summer, while Hg concentrations were similar (0.03 to 0.04 mg/kg) throughout all seasons. Results indicate that except for Cd, Crassostrea corteziensis accumulates metals to levels below those recommended by the US. FDA and the Mexican government. For Cd, its concentration correlates more strongly with the temperature of the oyster's environment rather than to the oyster growth cycle.
本研究考察了实验养殖的 Coquilles Saint-Jacques（一种对物理和化学胁迫具有高抗性的牡蛎物种）中 Cd、Cu、Pb 和 Hg 浓度的季节性变化。在夏季采集的牡蛎样本中，检测到 Cd（4.92 mg/kg）、Cu（3.45 mg/kg）和 Pb（0.67 mg/kg）的含量最高，而 Hg 浓度在所有季节均相似（0.03 至 0.04 mg/kg）。结果表明，除 Cd 外，Crassostrea corteziensis 积累的金属含量低于美国 FDA 和墨西哥政府建议的水平。对于 Cd，其浓度与牡蛎环境的温度相关性更强，而不是与牡蛎的生长周期相关。
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