Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru.
Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru; Instituto del Mar del Perú, Esquina Gamarra con General Valle, Chucuito, Callao, Peru.
Mar Pollut Bull. 2022 Apr;177:113523. doi: 10.1016/j.marpolbul.2022.113523. Epub 2022 Mar 12.
Prionace glauca is a top predator, prone to bioaccumulate trace elements, representing the most captured elasmobranch species for human consumption in Peru. Concentrations of cadmium and lead in the edible muscle tissue of the blue shark captured in the south Peruvian coastal waters and offshore north-central Chile were determined. The Cd and Pb levels varied between 0.004 and 0.014 and 0.004 and 0.03 mg kg, respectively. We found direct correlation of Cd concentration with the total length, nevertheless there was no clear relationship regarding sex, seasons, and capture areas. Both metals were below the safety limits for human consumption. The target hazard quotient (THQ) values suggest that its consumption does not represent a risk to the human health. In Peru, this is only the second paper that reports Cd and Pb in sharks. We recommend increasing the sampling by including larger sharks and in other regions of the Peruvian coastline.
灰鲭鲨是顶级掠食者，容易在体内蓄积微量元素，是秘鲁人类消费捕获量最大的鲛鱼类。本研究测定了在秘鲁南部沿海水域和智利中北部近海捕获的灰鲭鲨可食用肌肉组织中的镉和铅浓度。Cd 和 Pb 的浓度分别在 0.004 到 0.014 和 0.004 到 0.03mg/kg 之间变化。我们发现 Cd 浓度与总长度直接相关，但与性别、季节和捕捞区没有明显关系。这两种金属都低于人类消费的安全限量。目标危害系数 (THQ) 值表明，其消费不会对人类健康构成威胁。在秘鲁，这是第二份报告鲨鱼体内 Cd 和 Pb 的论文。我们建议通过包括更大的鲨鱼和秘鲁海岸线的其他地区来增加采样。
