大西洋和印度洋大眼金枪鱼（Thunnus obesus）肌肉组织中的砷和五种金属浓度。
Arsenic and five metal concentrations in the muscle tissue of bigeye tuna (Thunnus obesus) in the Atlantic and Indian Oceans.
机构信息
Department of Marine Environmental Engineering, National Kaohsiung Marine University, 811 Kaohsiung, Taiwan.
Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan.
出版信息
Mar Pollut Bull. 2018 Apr;129(1):186-193. doi: 10.1016/j.marpolbul.2018.02.028. Epub 2018 Feb 22.
White muscle concentrations of As, Cd, Cu, Fe, Se, and Zn were investigated in Atlantic- and Indian-bigeye tuna (BET) (Thunnus obesus) from 6 regions. As and Cd muscle concentrations were significantly higher in the Indian-BET than in the Atlantic-BET, whereas the Indian-BET caught in the waters off South Africa revealed the highest As, Se, and Zn muscle concentrations. Accordingly, multidimensional scaling separated them into two oceanic groups. Positive linear relationships between muscle Cd concentration and fork length (FL) were established in both oceans. For the other elements, only muscle-Fe and FL relationship was found in the Atlantic-BET. 10.3% of BET > 145 cm FL from both oceans possessed muscle Cd concentrations exceeding the food safety limit (0.1 μg g wet weight) set by the European Commission. Increased Cd, Cu and Zn pollution was found in the Atlantic Ocean compared with previous data, with higher levels found in the Indian Ocean.
研究了来自 6 个地区的大西洋和印度洋大眼金枪鱼（BET）（黄鳍金枪鱼）的白色肌肉中的砷、镉、铜、铁、硒和锌浓度。印度大眼金枪鱼肌肉中的砷和镉浓度明显高于大西洋大眼金枪鱼，而在南非海域捕获的印度大眼金枪鱼肌肉中的砷、硒和锌浓度最高。因此，多维尺度分析将它们分为两个海洋群体。在两个大洋中均建立了肌肉镉浓度与叉长（FL）之间的正线性关系。对于其他元素，仅在大西洋 BET 中发现了肌肉铁与 FL 的关系。来自两个大洋的超过 145 厘米 FL 的 10.3%的 BET 肌肉镉浓度超过了欧盟委员会设定的食品安全限量（0.1μg/g 湿重）。与以前的数据相比，在大西洋中发现了更高水平的镉、铜和锌污染，而在印度洋中发现了更高水平的污染。
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