ABSTRACT

The aim of the present study is to assess the accumulation of detergents residues; linear alkylbenzene sulphonate (LAS) in Burullus and Edku lagoons water, sediments, and muscles of Oreochromis niloticus and investigate hazards effect on fish. The data revealed a significant accumulation of LAS in Burullus and Edku water, sediments, and fish muscle compared to those recorded in the Nile River as a reference site. The study showed seasonal changes in the serum concentrations of superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GSH) for fish tilapia. The ANOVA test displayed a significant difference between different seasons (p ≤ .001). The results of the current study exhibited the effect of increasing the concentration of LAS on the fishes of Burullus and Edku lagoons. The study showed low concentrations of serum activity, CAT, SOD and GSH in comparison with the values in the control fish (Nile River fish). It causes oxidative stress, severe disruption, followed by cytotoxicity. In excessive production of reactive oxygen species, the serum of SOD, CAT and GSH are exploited for detoxification. Alterations in histopathological structure were observed in both Burullus, and Edku fish liver and gills compared to those in the control fish.

摘要

本研究的目的是评估洗涤剂残留物的积累；Burullus 和 Edku 泻湖水、沉积物和尼罗罗非鱼肌肉中的直链烷基苯磺酸盐 (LAS)并调查对鱼类的危害影响。数据显示，与尼罗河作为参考点的记录相比，在 Burullus 和 Edku 水、沉积物和鱼肌肉中 LAS 的积累显着。该研究显示了罗非鱼血清中超氧化物歧化酶 (SOD)、过氧化氢酶 (CAT) 和谷胱甘肽还原酶 (GSH) 浓度的季节性变化。ANOVA 检验显示不同季节之间存在显着差异 ( p ≤ .001)。目前的研究结果显示了增加 LAS 浓度对 Burullus 和 Edku 泻湖鱼类的影响。研究表明，与对照鱼（尼罗河鱼）的值相比，血清活性、CAT、SOD 和 GSH 浓度较低。它会导致氧化应激、严重破坏，然后是细胞毒性。在活性氧的过量产生中，SOD、CAT 和 GSH 的血清被用于解毒。与对照鱼相比，在 Burullus 和 Edku 鱼的肝脏和鳃中都观察到了组织病理学结构的变化。