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Environmental monitoring using biomarkers in relevance to heavy metal pollution in coastal areas of the Gulf of Mannar
Indian Journal of Experimental Biology ( IF 0.7 ) Pub Date : 2020-10-29
N Nagarani, M Anand, AK Kumaraguru

Marine organisms are vulnerable to harsh environment where fluctuation in physicochemical conditions including salinity and tides are common. These organisms over the period have evolved different mechanisms to maintain the physiological conditions of the body through metabolic activities. In the present work, we studied accumulation of about 10 heavy metals in about 20 marine organisms from the Gulf of Mannar, Southeast coast of India and also explored the passable relationship between distribution of these inorganic metals and biochemical response of these organisms. The effect on the accumulation of metals over the metabolism in the marine animals was evaluated by the level of antioxidant response. Concentration of metal in the body tissues was analyzed using ICP-AES. Interestingly, it was also observed that genotoxic potential pollutants were less or negligible in the selected sites. Tail DNA in the muscle cells was observed to be <5%. Our study concludes that fishes from the two areas are not heavily burdened with metals, but pollutants should be monitored periodically to avoid excessive intake of trace metals by humans due to bioaccumulation. The work concludes that a multiparameter analysis should be followed to study the ecological status of the aquatic environment.

中文翻译:

在曼纳尔湾沿海地区使用生物标志物进行与重金属污染有关的环境监测

海洋生物易受恶劣环境的影响,在恶劣环境中,包括盐度和潮汐在内的物理化学条件通常很波动。在此期间,这些生物体进化出不同的机制来通过代谢活动维持身体的生理状况。在目前的工作中,我们研究了印度东南海岸曼纳尔湾约20种海洋生物中约10种重金属的积累,并探讨了这些无机金属的分布与这些生物的生化反应之间的可通关关系。通过抗氧化剂反应的水平评估了海洋动物体内金属在代谢过程中积累的影响。使用ICP-AES分析人体组织中的金属浓度。有趣的是 还观察到,在选定的地点,潜在的遗传毒性污染物较少或可以忽略不计。观察到肌肉细胞中的尾巴DNA小于5%。我们的研究得出的结论是,这两个地区的鱼类没有重金属负担,但应定期监测污染物,以避免由于生物蓄积而导致人类过量摄入痕量金属。这项工作得出结论,应该进行多参数分析以研究水生环境的生态状况。
更新日期:2020-10-30
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