Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
Department of Zoology, Government College University, Faisalabad-38000, Pakistan.
Biomolecules. 2019 Jun 14;9(6):231. doi: 10.3390/biom9060231.
This research work was carried out to determine the effects of water contamination on the fatty acid (FA) profile of periphyton, zoobenthos, two Chinese carps and a common carp ( and ), captured from highly polluted (HP), less polluted (LP), and non-polluted (NP) sites of the Indus river. We found that the concentration of heavy metals in the river water from the polluted locations exceeded the permissible limits suggested by the World Health Organization (WHO) and the US Environmental Protection Agency (EPA). Fatty acid profiles in periphyton, zoobenthos, , , and in the food web of river ecosystems with different pollution levels were assessed. Lauric acid and arachidic acids were not detected in the biomass of periphyton and zoobenthos from HP and LP sites compared to NP sites. Alpha-linolenic acid (ALA), eicosadienoic acid and docosapentaenoic acid were not recorded in the biomass samples of periphyton and zoobenthos in both HP and LP sites. Caprylic acid, lauric acid, and arachidic acid were not found in , , and captured from HP. In this study, 6 and 9 omega series FAs were identified in the muscle samples of , and captured from HP and LP sites compared to NP sites, respectively. Less polyunsaturated fatty acids were observed in the muscle samples of , , and collected from HP than from LP. The heavy metals showed significant negative correlations with the total FAs in periphyton, zoobenthos, and fish samples.
这项研究旨在确定水污染对底栖生物、底栖动物、两种中国鲤鱼和一种鲤鱼（和）的脂肪酸（FA）谱的影响，这些鱼类是从印度河的高度污染（HP）、轻度污染（LP）和无污染（NP）地区捕获的。我们发现，来自污染地区的河水重金属浓度超过了世界卫生组织（WHO）和美国环境保护署（EPA）建议的允许限度。评估了不同污染水平的河流生态系统食物网中底栖生物、底栖动物、、、的脂肪酸图谱。与 NP 地点相比，HP 和 LP 地点的底栖生物和底栖动物生物量中未检测到月桂酸和花生酸。在 HP 和 LP 地点的底栖生物和底栖动物生物量样本中未记录到α-亚麻酸（ALA）、二十碳二烯酸和二十二碳五烯酸。在 HP 捕获的、和中未发现辛酸、月桂酸和花生酸。在这项研究中，与 NP 地点相比，分别在 HP 和 LP 地点捕获的、和的肌肉样本中鉴定出 6 和 9 个 omega 系列 FA。与 LP 相比，HP 捕获的、和的肌肉样本中多不饱和脂肪酸较少。重金属与底栖生物、底栖动物和鱼类样本中的总 FA 呈显著负相关。
