Department of Marine Sciences, Tarbiat Modares University, Mazandaran, Noor, Iran.
Department of Marine Sciences, Tarbiat Modares University, Mazandaran, Noor, Iran.
Mar Pollut Bull. 2021 Feb;163:111942. doi: 10.1016/j.marpolbul.2020.111942. Epub 2021 Jan 7.
Southern parts of the Caspian Sea have been faced with a diverse range of oil pollutants. Therefore, this study was designed to evaluate the effects of relevant environmental concentrations of benzo[α]pyrene (BαP) on liver, gill, and blood of Caspian White fish. To this end, 150 fingerling fish (6.5 ± 0.8 g) were exposed to under, near and over environmental concentrations of BαP (i.e. 50, 100, and 200 ppb, respectively) and two control groups for 21 days. Following exposure to BαP, generally, DNA damage increased in the liver and gill cells as well as the frequency of micro- and bi-nucleated erythrocytes in a time and concentration-dependent pattern. In addition, the liver and gill tissues displayed several histopathological lesions. Together, the findings are warning the health status of the Caspian Sea due to an ever-increasing concentration of BαP through using Caspian White fish as an ecological model.
里海南部地区面临着多种类型的石油污染物。因此，本研究旨在评估相关环境浓度的苯并[a]芘（BαP）对里海白鱼肝脏、鳃和血液的影响。为此，将 150 条幼鱼（6.5±0.8g）暴露于 BαP 的环境浓度下、接近环境浓度和超过环境浓度（分别为 50、100 和 200ppb）以及两个对照组中 21 天。暴露于 BαP 后，肝脏和鳃细胞中的 DNA 损伤以及微核和双核红细胞的频率均呈现出时间和浓度依赖性的增加。此外，肝脏和鳃组织显示出多种组织病理学损伤。总之，这些发现表明，由于 BαP 浓度的不断增加，里海白鱼作为生态模型，里海的健康状况令人担忧。
