Impact assessment of biofouling resistant nano copper oxide–polyaniline coating on aquaculture cage nets

Ashraf, P M and Manju Lekshmi, N and Chinnadurai, S and Anjitha, Sajeevan and Archana, Mathath and Vineeth Kumar, C M and Sandhya, K M and Ambarish, Gop P (2022) Impact assessment of biofouling resistant nano copper oxide–polyaniline coating on aquaculture cage nets. Aquaculture and Fisheries. pp. 1-6.

Text Aquaculture and Fisheries _2022_S Chinnadurai.pdf Restricted to Registered users only Download (2MB) | Please mail the copy request to cmfrilibrary@gmail.com

Abstract

Biofouling is a major issue in aquaculture cages and nano materials based antifouling strategies became more prominent in recent years. Polyethylene aquaculture cage net surface which is modified with polyaniline and nano-copper oxide (CuO), reported to have biofouling resistance. Leaching of nano CuO from the net to the aquatic environment and its bioaccumulation in fish is the major concern against the technology adoption. The present study aimed to understand the accumulation of copper in fishes grown in a nano CuO treated aquaculture cage net. Studied the leaching pattern of nano CuO, biofouling inhibition and changes in strength of the cage net due to the nano CuO treatments. Fishes grown in the treated cages exhibited normal growth characteristics with no signs of abnormalities and also copper in their organs were within the prescribed standard limit. The CuO treated cage net exhibited excellent biofouling resistance and the percentage of occlusion of mesh by foulers were 56.77% more efficient than untreated cage net. Rate of nano CuO leached to the aquatic system was less than 8 μg/g⋅d. The fouling organism assemblage on untreated and treated net was 18 and 11 species, respectively. Major calcareous shelled foulers were absent on treated nets. The study highlighted the potential application of nano CuO treatment to control biofouling in aquaculture cages.

Item Type:	Article
Uncontrolled Keywords:	Aquaculture; Bioaccumulation; Biofouling; Polyaniline; Nano copper oxide; Nano toxicity
Subjects:	Biochemistry Aquaculture > Cage culture Aquaculture
Divisions:	CMFRI-Vizhinjam
Depositing User:	Arun Surendran
Date Deposited:	05 Mar 2022 05:35
Last Modified:	05 Mar 2022 05:35
URI:	http://eprints.cmfri.org.in/id/eprint/15831

Actions (login required)

View Item