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首页> 外文期刊>International journal of environmental analytical chemistry >Trace metal accumulation in tissues of sole (Solea senegalensis) and the relationships with the abiotic environment
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Trace metal accumulation in tissues of sole (Solea senegalensis) and the relationships with the abiotic environment

机译：微量金属在脚底（Solea senegalensis）组织中的积累及其与非生物环境的关系

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摘要

The distribution patterns and the organ-specific accumulation trends of 10 trace metals (iron, manganese, zinc, copper, chromium, nickel, cobalt, lead, cadmium and silver) and 4 major elements (sodium, potassium, calcium and magnesium) in 10 different tissues (heart, muscle, kidney, stomach, intestine, liver, gill, gonads, white skin and dark skin) of a benthic fish species (Solea senegalensis) from a densely populated coastal area affected by anthropogenic activities, the Bay of Cadiz (SW Spain), have been investigated. High variability of metal concentrations among tissues were found for Ca, Fe, Zn, Cu, Pb and Ag. Factor analysis was applied to study this variability. Five principal components were found explaining the 92.95% of the total variance and similarities in behavioural patterns of bioaccumulation were described. They associated Mg, Cr, Ni and Mn to intestine and stomach tissues (PCI), Ag, Cu and Cd to liver (PC2), Zn, K and Co to gonads (PC3), Na, Fe and Pb to gill, heart and kidney tissues (PC4) and Ca, Pb and Mn to gill and dark skin (PC5). The metallic concentration in the sediment and water was also studied. The pollution in this area was found moderate with outstanding values of Zn, Cu and Pb (average values of 139, 50.4 and 75.6 mg kg~(-1), respectively) in sediment and dissolved Cu (average value of 2.5 μg L~(-1)). Metal bioconcentration trends followed the order Zn>Cu>Cd>Pb for dissolved metals in seawater, Cu>Zn>Cd>Pb≈Mn>Fe≈Ni≈Co for metals associated to particulate matter and Zn≈Cu>Cd>Mn>Co≈ Fe > Ni≈Pb> Cr for metals- in the sediment. Higher values were found for copper in liver, zinc in gonads and lead in gill, showing the relationship between biotic and abiotic environment. In addition, Cd bioconcentration factors were found high in liver and gill showing the sensitivity of sole to this metal even at low concentrations.
机译：十种微量金属（铁，锰，锌，铜，铬，镍，钴，铅，镉和银）和四种主要元素（钠，钾，钙和镁）的分布规律和特定器官的积累趋势来自受人为活动影响的人口稠密沿海地区底栖鱼类（Solea senegalensis）的不同组织（心脏，肌肉，肾脏，胃，肠，肝，g，性腺，白皮肤和深色皮肤）的不同组织，加的斯湾（西班牙西南），已经过调查。钙，铁，锌，铜，铅和银在组织中的金属浓度变化很大。应用因子分析来研究这种变异性。找到五个主要成分，解释了92.95％的总方差，并描述了生物蓄积行为模式的相似性。他们将Mg，Cr，Ni和Mn与肠和胃组织（PCI），Ag，Cu和Cd与肝脏（PC2），Zn，K和Co与性腺（PC3），Na，Fe和Pb与g，心脏和心脏相关联。肾脏组织（PC4）以及钙，铅和锰到g和深色皮肤（PC5）。还研究了沉积物和水中的金属浓度。发现该区域的污染为中等水平，沉积物中的Zn，Cu和Pb的平均值突出（分别为139、50.4和75.6 mg kg〜（-1））和溶解的Cu（平均值为2.5μgL〜（ -1））。对于海水中溶解的金属，金属生物富集趋势遵循Zn> Cu> Cd> Pb的顺序，对于与颗粒物有关的金属，Cu> Zn> Cd>Pb≈Mn>Fe≈Ni≈Co的顺序为Zn≈Cu> Cd> Mn> Co。沉积物中金属的≈Fe>Ni≈Pb> Cr。肝脏中的铜，性腺中的锌和g中的铅的含量较高，表明生物环境与非生物环境之间的关系。另外，在肝脏和g中发现镉的生物富集因子很高，即使在低浓度下，也显示出鞋底对这种金属的敏感性。

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