Hygiene and Veterinary Care Department, Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt.
National Center for International Research, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
Environ Sci Pollut Res Int. 2021 Aug;28(30):41431-41438. doi: 10.1007/s11356-021-13645-8. Epub 2021 Mar 30.
In aquacultures, heavy metals could be accumulated in fish tissues from natural and human-related sources depending on different factors. This study aims to estimate the level of bioaccumulation of heavy metals in cultured Gilt-head sea bream Sparusaurata. In this regard, heavy metals concentrations were measured in both water and fish musculature that were collected from a private fish farm in Kafr ElSheikh, Egypt. Regarding the water samples, heavy metals were within the permissible limits with exception of Cd, Cu, and Zn. In fish musculature, all heavy metals were within the WHO/FAO permissible limits. The bioaccumulation factor (BAF) indicated that mostly all heavy metals accumulation in the Gilt-head sea bream musculature decreased with time which may be correlated with the increase in water pH, calcium, and other cations concentrations. The hazard index (HI) calculations indicate no adverse health effects of heavy metals on humans through daily fish consumption so far. However, health risks are not negligible making the regular monitoring of metal contaminants in the studied area a necessity.
在水产养殖中，重金属可能会从自然和人为来源积累在鱼类组织中，具体取决于不同的因素。本研究旨在评估养殖真鲷 Sparusaurata 体内重金属的生物累积水平。为此，从埃及卡夫尔谢赫的一家私人养鱼场采集了水和鱼肌肉样本，测量了样本中重金属的浓度。就水样而言，除 Cd、Cu 和 Zn 外，其他重金属均在允许范围内。在鱼肌肉组织中，所有重金属均在世界卫生组织/粮农组织的允许范围内。生物累积因子 (BAF) 表明，大多数重金属在真鲷肌肉组织中的积累随时间减少，这可能与水 pH 值、钙和其他阳离子浓度的增加有关。危害指数 (HI) 的计算表明，目前通过日常食用鱼类，重金属对人类没有不良的健康影响。然而，健康风险不容忽视，因此有必要对研究区域的金属污染物进行定期监测。
