Heavy metal in cultured shrimp (L.vannamei and P.monodon) and in shrimp farms in Sedili, Johor and Marang and Setiu, Terengganu

Abstract

The concentration of heavy metal; Chromium, Copper, Manganese, Nickle, Cadmium, Lead and Zinc were determined in the sampl� of shrimps, sediment, food pellet and water. Penaeus monodon farms were analyzed sampled from Marang, Terengganu while Litopenaeus vannamei were analyzed sampled from Sedil� Johor and Setiu, Terengganu. Sediment was sampled using Van veen grab. Water was preserved with 6()0/o Niric Acid and put into ice chest with shrimp sample. The most notable record of heavy metal concentration in shrimp was shown within Setiu with the order; Zn > Cr> Cu > Ni > Mn > Pb > Cd. Sedili showed high load of Zn > Pb > Cu > Cr > Ni > Mn > Cd and the least of heavy metal concentration was recorded in Marang with the order; Zn > Cu > Cr > Pb > Ni > Mn > Cd. The highest and least concentrated heavy metal in Setiu was 6.819µg.g· 1 for Cr while the least of3.025µg.g· 1 for Cd. L. vannamei showed higher accumulation of Cr, Mn, Ni and Pb than P. monodon. Setiu had highest heavy metal concentration within food for Cu, Cr, Mn, Pb, Ni and Cd.