A Study on Cadmium Accumulation in the Fingerlings of Asian Seabass Lates calcarifer (Bloch)
V. Mohan Raj *
PG & Research Department of Zoology, Sir Theagaraya College, Chennai, Tamil Nadu, India.
A.R. Thirunavukkarasu
Central Institute of Brackish water Aquaculture, 75, Santhome High Road, R.A. Puram, Chennai, Tamil Nadu, India.
M. Kailasam
Central Institute of Brackish water Aquaculture, 75, Santhome High Road, R.A. Puram, Chennai, Tamil Nadu, India.
R. Subburaj
Central Institute of Brackish water Aquaculture, 75, Santhome High Road, R.A. Puram, Chennai, Tamil Nadu, India.
G. Thiagarajan
Central Institute of Brackish water Aquaculture, 75, Santhome High Road, R.A. Puram, Chennai, Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
Heavy metals remain in the environment for extended periods, taint food chains, and lead to various health issues because of their toxic nature. Organisms face significant dangers from prolonged exposure to these environmental heavy metals. Excessive exposure to heavy metals in marine ecosystems can adversely affect marine life and pose risks to humans who consume seafood. Cadmium a non-essential metal that are toxic, even in trace amounts. One of the key groups for transferring metals to humans is thought to be fish, which are typically found in the lower rungs of the food chain. In this study, we conducted a 60-day experiment to investigate the accumulation of cadmium in various tissues of seabass Lates calcarifer, a commercially important fish species. The study's results show that cadmium concentration in L. calcarifer tissues is highest in liver, followed by gill, and then muscle. The effects of L. calcarifer are influenced by the dosage and duration of administration, with liver, gill, and muscle are being the primary sites of action.
Keywords: Bioaccumulation, contamination, fish, heavy metals, liver, toxicity