Arsenic (As) concentrations were measured in the muscle and liver of the speckled guitarfish Pseudobatos glaucostigmus and its main prey Penaeus californiensis, in Santa Rosalia, western Gulf of California, to determine bioaccumulation and biomagnification. Higher mean wet weight (w.w.) values were found in muscle tissue (9.87 μg g−1) compared to liver tissue (5.32 μg g−1); however, the highest concentrations were found in the liver (48.05 μg g−1). All samples showed As concentrations above the maximum permissible limit for human consumption. The highest concentrations in mature females (muscle: 6.93 μg g−1; liver: 14.5 μg g−1) concerning pregnant females (muscle: 5.01 μg g−1; liver: 8.46 μg g−1) may indicate a maternal transfer of As from mothers to their embryos. Arsenic bioaccumulates in the liver, which was evident from the positive correlation between total length and As concentration. Arsenic levels in Penaeus californiensis showed biomagnification from prey to predator for both tissues.

中文翻译：

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墨西哥加利福尼亚湾圣罗莎莉亚斑点吉他鱼 Pseudobatos glaucostigmus 肌肉和肝脏中砷的生物积累和生物放大


在加利福尼亚湾西部的圣罗莎莉亚 （Santa Rosalia） 测量了斑点吉他鱼 Pseudobatos glaucostigmus 及其主要猎物 Penaeus californiensis 的肌肉和肝脏中的砷 （As） 浓度，以确定生物积累和生物放大。与肝组织 （5.32 μg g-1） 相比，肌肉组织 （9.87 μg g-1） 的平均湿重 （w.w.） 值更高;然而，在肝脏中发现的浓度最高 （48.05 μg g-1）。所有样品的 As 浓度均高于人类食用的最大允许限度。成熟雌性（肌肉：6.93 μg g-1;肝脏：14.5 μg g-1）中怀孕雌性（肌肉：5.01 μg g-1;肝脏：8.46 μg g-1）的最高浓度可能表明母体将 As 从母亲转移到胚胎。砷在肝脏中生物蓄积，这从总长度和 As 浓度之间的正相关中可以明显看出。Penaeus californiensis 的砷水平显示两个组织从猎物到捕食者的生物放大。