Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Locked Bag No. 100, 17600, Jeli, Kelantan, Malaysia.
Biology Department, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
Sci Rep. 2019 Apr 23;9(1):6391. doi: 10.1038/s41598-019-42753-2.
This work investigates the metals concentration in the tissues of Asian swamp eel, Monopterus albus. Five selected tissues, including liver, gill, bone, skin, and muscle were examined for the concentration of Zn, Cu, Cd, Pb, and Ni. The concentrations of Cd and Pb were found high in the muscle tissues of the eels. Additionally, high amounts of Zn and Cu metals were observed in the liver, whereas the Cd, Pb, and Ni metals were highly detected in gill. The accumulation of Zn, Cu, Cd, Pb, and Ni in both skin and bone of the eel seems to vary between seasons. Low levels of Zn, Cu, and Ni were identified in the muscle tissues of the eels. This study revealed that the concentration of Cd and Pb in the muscle tissues of Asian swamp eels exceeded the permissible limits by the US EPA, suggesting the consumption of the muscle may be hazardous and can severely affect one's health.
本研究调查了亚洲鳗鲡（Monopterus albus）组织中的金属浓度。选取肝脏、鳃、骨骼、皮肤和肌肉等 5 种组织，检测锌（Zn）、铜（Cu）、镉（Cd）、铅（Pb）和镍（Ni）的浓度。结果表明，肌肉组织中 Cd 和 Pb 的浓度较高。此外，肝脏中 Zn 和 Cu 含量较高，而 Cd、Pb 和 Ni 则在鳃中大量检出。Zn、Cu、Cd、Pb 和 Ni 在鳗鱼的皮肤和骨骼中的积累似乎因季节而异。鳗鱼肌肉组织中的 Zn、Cu 和 Ni 含量较低。本研究表明，美国环保署（EPA）规定的肌肉组织中 Cd 和 Pb 的浓度限值超标，提示食用肌肉组织可能存在健康风险。
