Department of Biology, Faculty of Sciences, Erciyes University, 38039, Kayseri, Turkey.
Bull Environ Contam Toxicol. 2012 Aug;89(2):428-33. doi: 10.1007/s00128-012-0679-7. Epub 2012 May 30.
The aim of this study was to analyze seasonal variation of levels of Chromium (Cr), Manganese (Mn), Nickel (Ni), Copper (Cu), Zinc (Zn), Cadmium (Cd) and Lead (Pb) in water, sediment and tissues of Squalius cephalus (L., 1758) taken from five different stations chosen at Yamula Dam Lake (Kayseri, Turkey). Concentrations of metals were generally sorted as water < tissue < sediment. The highest concentration of metals in water was observed in the samples taken in the summer (Mn, 1.04 ± 0.15 mg L(-1); Ni, 0.42 ± 0.12 mg L(-1); Cu, 1.25 ± 0.88 mg L(-1); Zn, 3.61 ± 1.53 mg L(-1); Pb, 0.58 ± 0.09 mg L(-1)). While the highest Zn (24.85 ± 21.82 μg g(-1)) and Pb (10.89 ± 4.2 μg g(-1)) concentrations in sediment were observed in the winter samples, the highest Mn concentration (167.2 ± 99.37 μg g(-1)) was observed in the summer. Cd pollution was determined in sediment according to international criteria. The highest metal concentration in tissues was generally observed in the liver and the other tissues; following liver were gills and muscles. In liver tissues, while the highest accumulation of Zn (110.34 ± 13.1) and Mn (22.5 ± 14.85 μg g(-1)), which are essential for the body, were observed in the winter, Pb (22.58 ± 7.83 μg g(-1)) and Cd (11.77 ± 7.83 μg g(-1)), which are toxic, were found to be higher in the summer. Also, concentrations of Mn, Cd and Pb in muscle tissues were found to be above the limits permitted.
本研究旨在分析从土耳其耶迈勒大坝湖（开塞利省）五个不同地点采集的麦穗鱼（L.，1758）的水、沉积物和组织中铬（Cr）、锰（Mn）、镍（Ni）、铜（Cu）、锌（Zn）、镉（Cd）和铅（Pb）的季节性变化。金属浓度通常按水 < 组织 < 沉积物排序。水中金属浓度最高的是夏季采集的样品（Mn，1.04 ± 0.15 mg/L；Ni，0.42 ± 0.12 mg/L；Cu，1.25 ± 0.88 mg/L；Zn，3.61 ± 1.53 mg/L；Pb，0.58 ± 0.09 mg/L）。而冬季沉积物中 Zn（24.85 ± 21.82 μg/g）和 Pb（10.89 ± 4.2 μg/g）浓度最高，夏季 Mn 浓度（167.2 ± 99.37 μg/g）最高。根据国际标准，沉积物中存在 Cd 污染。组织中金属浓度最高的通常是肝脏和其他组织，其次是鳃和肌肉。在肝脏组织中，冬季观察到对身体有益的 Zn（110.34 ± 13.1）和 Mn（22.5 ± 14.85 μg/g）的最高积累，而夏季则发现对身体有毒的 Pb（22.58 ± 7.83 μg/g）和 Cd（11.77 ± 7.83 μg/g）浓度更高。此外，肌肉组织中 Mn、Cd 和 Pb 的浓度也超过了允许的限度。
