Mariculture fish contains a rich source of protein, but some species may bioaccumulate high levels of heavy metals, making them unsafe for consumption. This study aims to identify heavy metal concentration in Lates calcarifer (Barramudi), Lutjanus campechanus (Red snapper) and Lutjanus griseus (Grey snapper). Three species of mariculture fish, namely, L. calcarifer, L. campechanus and L. griseus were collected for analyses of heavy metals. The concentration of heavy metal (As, Cd, Cu, Cr, Fe, Pb, Mn, Ni, Se, and Zn) was determined using inductive coupled plasma mass spectrometry (ICP-MS). The distribution of heavy metals mean concentration in muscle is Zn > Fe > As > Se > Cr > Cu > Mn > Pb > Ni > Cd for L. calcarifer, Fe > Zn > Cr > As > Ni > Mn > Se > Cu > Pb > Cd for L. campechanus and Fe > Zn > Cr > Ni > Se > Cu > As > Mn >Pb > Cd for L. griseus. Among all of the species under investigation, the highest concentration of Fe was found in the muscle tissue of L. campechanus (19.985 ± 1.773 mg.kg^-1) and liver tissue of L. calcarifer (0.007 ± 0.004 mg.kg^-1). Meanwhile, L. calcarifer has the lowest concentration of Cd in both muscle (0.007 ± 0.004 mg.kg^-1) and liver tissue (0.027 ± 0.016 mg.kg^-1). The heavy metal concentration in muscle tissue is below the permissible limit guidelines stipulated by the Food & Agriculture Organization and Malaysia Food Act, 1983. The concentration of heavy metals varies significantly among fish species and tissues. L. campechanus was found to have a higher ability to accumulate heavy metals as compared to the other two species (p < 0.00). Among all the studied fish, liver tissue has a higher concentration of heavy metals compared to muscle tissue (p < 0.05). The findings from this study can serve as baseline information for future monitoring and risk assessment studies. Periodic monitoring of heavy metal concentration in mariculture fish must be performed to prevent acute and chronic food intoxication.

海水养殖鱼类含有丰富的蛋白质来源，但某些物种可能会生物富集高含量的重金属，使其无法安全食用。这项研究的目的是确定重钙藻（Barramudi），Lutjanus campechanus（红鲷鱼）和Lutjanus griseus（灰鲷鱼）中的重金属浓度。三种海水养殖鱼类，即对L. calcarifer，L. campechanus和L.灰色链霉菌收集用于重金属分析。使用电感耦合等离子体质谱法（ICP-MS）测定重金属（As，Cd，Cu，Cr，Fe，Pb，Mn，Ni，Se和Zn）的浓度。钙芒藻中重金属的平均分布分布为锌>铁>砷>硒>铬>铜>锰>铅>镍>镉，铁>锌>铬>砷>镍>锰>硒>铜>喜树（L. campechanus）的铅>镉（Cd），灰葡萄球菌（L. griseus）的铁>锌>铬>镍>硒>铜>砷>锰>铅>镉。在所有被调查物种中，铁的最高浓度出现在喜树（L. campechanus）的肌肉组织（19.985±1.773 mg.kg ^-1）和肝组织中。）。同时，钙肌乳杆菌在肌肉（0.007±0.004 mg.kg ^-1）和肝组织（0.027±0.016 mg.kg ^-1）中镉的含量最低。肌肉组织中的重金属浓度低于《食品与农业组织和1983年马来西亚食品法》规定的允许极限准则。鱼类和组织中的重金属浓度差异很大。坎普chanchanus与其他两个物种相比，被发现具有更高的重金属积累能力（p <0.00）。在所有研究的鱼类中，肝组织中的重金属浓度高于肌肉组织（p <0.05）。这项研究的结果可以作为未来监测和风险评估研究的基准信息。必须定期监测海水养殖鱼类中的重金属浓度，以防止急性和慢性食物中毒。