International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 2, Part B
Sub lethal effect of antifouling paints on marine organismAuthor(s):
Saif Al Ghais, Vibha Bhardwaj and Pramod KumbharAbstract:
Antifouling paints containing tributyltin (TBT) began in the late 1980s. Although it still may be available in some parts of the world, antifouling paints containing TBT were ultimately banned in 2008. Copper began to become a concern in California in the 1990s. Copper has been used in antifouling paints for centuries because it is effective, available, and relatively inexpensive compared to other biocides. However, excessive concentrations of copper in aquatic ecosystems can exert detrimental effect on marine life such as fish.
In the present study, we have exposed marine fishes, to two different doses (15 mg/L) of Cu-NPs and (2mg/L) dibutyltin for six days. The doses selected were eco-relevant considering the contamination levels of certain water resources. The results indicated that the activity oxidative stress enzymes reduced glutathione (GSH), acetylcholinesterase (AChE) and glutathione -S-transferase (GST) were significantly decreased in the liver, brain and gills of the treated groups when compared to control. Taken together, the results of suggest that short-term exposure of marine fish to Cu-NPs and dibutyltin causes oxidative stress and impart serious deleterious effects in the tissues which may affect fish growth and development and causes death. In the case of gills, liver and brain when exposed to both concentrations of CuO and dibutyltin (NPs), although activity of these enzymes showed an inhibition in the liver when exposed to both concentrations of NPs. The present study investigated that CuO NPs are more toxic than dibutyltin.
It has been suggested that the antifouling agents can cause aquatic pollution and subsequent accumulation in fish constitute a substantial risk to human health and to the environment. Therefore, our study purposed to further investigate the effects of copper-oxide nanoparticles (CuO-NPs) and dibutyltin on marine fish to compare CuO-NPs and dibutyltin bioaccumulation in the gills, liver, and brain. The present study aims to provide a comparative study between CuO and dibutyltin (NPs) at a concentration to declare their deleterious effects on oxidative biomarkers of marine fish and the measurement of oxidative stress. Pages: 92-97 | 248 Views 9 DownloadsDownload Full Article:
How to cite this article:
Saif Al Ghais, Vibha Bhardwaj, Pramod Kumbhar. Sub lethal effect of antifouling paints on marine organism. Int J Fish Aquat Stud 2020;8(2):92-97.