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在开发和净化后和之前对埃及曼扎拉湖的比较研究:生态系统和生物标志物;生化,本病理学和免疫组织化学

Hanaa M M El-Khayat¹, Hanan S Gaber², Noha S Helal³

¹Environmental Research Department, Theodor Bilharz Research Institute, Giza, Egypt.

Environmental pollution (Barking, Essex : 1987)

|October 15, 2023

概括

自2017年以来,曼扎拉湖的开发改善了水质,减少了重金属污染. 鱼类和牛健康生物标志物表明生态系统压力较小,特别是在赛德港,显示出积极的环境影响.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
水生生物学水生生物学

背景情况:

曼扎拉湖从2017年开始进行了重大发展举措.
2015年之前的研究确定了基线水质和生物健康参数.

研究的目的:

评估2017年曼扎拉湖开发对水质的影响.
为了评估Oreochromis niloticus (尼罗河) 和Biomphalaria alexandrina (一种牛物种) 的生物标志物的变化.
将2021年的健康指标与2015年达卡赫利亚和赛德港地区的数据进行比较.

主要方法:

测量了水质参数 (例如电导率,重金属度).
分析了鱼类 (Oreochromis niloticus) 和牛 (Biomphalaria alexandrina) 的生物标志物,包括重金属生物积累,肝酶,血液学和组织病理学.
评估了宏无脊椎动物种群的丰富性和三动物的传播.
进行了针对INTERLEUKIN-6 (IL-6) 表达的免疫组织化学分析.

主要成果:

水的电导率增加了,这表明海水的交换增强了. 水中的 (Pb), (Cd),铜 (Cu) 和 (Zn) 含量显著下降.
在鱼类和牛中,Cd和Pb的生物积累显著下降.
宏观无脊椎动物类型的丰富度增加,这表明生物水质有所改善.
与2015年不同的是,在2021年没有检测到三极动物传播.
鱼类和牛中的生物化学和血液学标记在2021年接近控制水平,特别是在赛义德港.
组织病理学检查显示,与2015年相比,2021年样本的组织结构有所改善,在赛义德港得到更好的结果.
达卡赫利亚样本中较高的IL-6表达表明炎症增加.

结论:

开发和净化过程对曼扎拉湖的环境质量产生了积极的影响.
显著改善了水质,减少了污染,改善了生态系统的健康,特别是在萨伊德港地区.
这项研究提供了在针对性干预后成功的生态恢复的证据.

关键词:

生物化学参数生物化学参数亚历山大亚历山大生物菌在IL-6的研究中,IL-6被认为是IL-6的基因.金属金属金属色色素尼洛蒂库斯 (Oreochromis niloticus) 是一种多彩的植物.水的质量水的质量

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