Gaspić Z Kljaković, Zvonarić T, Vrgoc N, Odzak N, Barić A
Institute of Oceanography and Fisheries, Split, Croatia.
Water Res. 2002 Dec;36(20):5023-8. doi: 10.1016/s0043-1354(02)00111-2.
Baseline levels of cadmium and lead were determined in muscle tissue and liver of hake (Merluccius merluccius) and red mullet (Mullus barbatus), two commercially important fish species from the eastern Adriatic. Concentrations of trace metals in liver (Cd: 6-183 microg kg(-1) w. wt. ; Pb: 39-970 microg kg(-1) w. wt.) were within the range of recently published data for the Mediterranean. In the muscle tissue, cadmium concentrations (4.1-29 microg kg(-1) w. wt.) were among the lowest reported values for the Mediterranean, whereas lead levels (49-158 microg kg(-1) w. wt.) were within the range of values reported for various coastal areas of the Mediterranean. Presented data on cadmium and lead content in the studied fish species provide no proof of the general pollution of the Adriatic. Obtained data were tested in relation to fish length. Metal concentrations in liver decreased with the increase in fish size, whereas no significant correlation was found between trace metal levels in the muscle tissue and the length of both species. Relationships between metal concentrations and sex were also tested, but they gave no significant results. A comparison of contaminant concentrations in the edible tissue of hake and red mullet with the Croatian legislation shows that the consumption of their meat is not harmful for humans, not even for the most endangered population from the coastal region.
测定了无须鳕（Merluccius merluccius）和羊鱼（Mullus barbatus）肌肉组织和肝脏中的镉和铅基线水平，这两种鱼是亚得里亚海东海岸具有重要商业价值的鱼类。肝脏中痕量金属的浓度（镉：6 - 183微克/千克湿重；铅：39 - 970微克/千克湿重）处于最近发表的地中海地区数据范围内。在肌肉组织中，镉浓度（4.1 - 29微克/千克湿重）是地中海地区报道的最低值之一，而铅水平（49 - 158微克/千克湿重）处于地中海不同沿海地区报道的值范围内。所呈现的关于所研究鱼类物种中镉和铅含量的数据无法证明亚得里亚海受到普遍污染。所获数据针对鱼的长度进行了检验。肝脏中的金属浓度随着鱼体大小的增加而降低，而在肌肉组织中痕量金属水平与这两种鱼的长度之间未发现显著相关性。还检验了金属浓度与性别的关系，但未得出显著结果。将无须鳕和羊鱼可食用组织中的污染物浓度与克罗地亚法规进行比较表明，食用它们的肉对人类无害，即使对于沿海地区最濒危的人群也是如此。
