• Venkatesan Alamelu
• Shanmugam Sudarshan
• Vetri Vijayarahavan
• Natarajan Krishnaveni Andiappan Muthiah
• Subbaiyah Balasundari

The present research study was designed to assess the concentrations of the heavy metals (Cd, Cu, Fe, Pb and Zn) in different tissues of six commercially important freshwater and marine fish species were caught in Nagapattinam region using inductively coupled plasma-mass spectrometry (ICP-OES). Various organs (liver, eye, kidney gill, gut, gonad, skin, and muscle) of six fish species, i.e., Channa straiata (CS), Labeo rohita (LR), Mugil cephalus (MC), Oreochromis mossambicus (OM), Pangasius hypophthalmus (PH) and Rastreliger kanagurta,(RK) from Nagapattinam were analyzed. Moreover, high concentration of heavy metals, especially Zn and Pb was noticed in the liver, kidney and gill tissues of the fishes which are higher than the WHO standards. Among the studied fishes, CS and PH showed higher levels of bioaccumulation in terms of toxic metals. The highest metal concentration was reported in the carnivore fishes as compared with the planktivore and omnivore.

Heavy metals, Bioaccumulation, Fish, Seafood, Food safety and Pollution

"BIOACCUMULATION OF HEAVY METALS IN COMMERCIALLY IMPORTANT FRESHWATER AND MARINE FISHES FROM NAGAPATTINAM, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.k586-k592, June-2022, Available :http://www.jetir.org/papers/JETIR2206A81.pdf

"BIOACCUMULATION OF HEAVY METALS IN COMMERCIALLY IMPORTANT FRESHWATER AND MARINE FISHES FROM NAGAPATTINAM, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppk586-k592, June-2022, Available at : http://www.jetir.org/papers/JETIR2206A81.pdf