Limited data are available about the accumulation of heavy metals in cave fish. In current study, eight species of fish in six caves were selected and the heavy metal contents of Cr, As, Cd, Pb, Zn, Cu, Ni, and Hg. The results showed the average concentration of these metals in the order Zn > Cu > Cr > Ni > Cd > As > Pb > Hg. The bio-concentration factors of Cu, Zn, Cd, and Pb were greater than 5000. The outcome of the health risk assessment suggests that consumption of the viscera or gills of cave fish from the karst caves in Libo can pose considerable health risks.

中文翻译：

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贵州荔波喀斯特溶洞鱼的重金属富集及健康风险评估

关于洞穴鱼中重金属积累的数据有限。在当前的研究中，选择了六个洞穴中的八种鱼类，并且其中的重金属含量为Cr，As，Cd，Pb，Zn，Cu，Ni和Hg。结果表明，这些金属的平均浓度依次为Zn> Cu> Cr> Ni> Cd> As> Pb> Hg。Cu，Zn，Cd和Pb的生物富集系数大于5000。健康风险评估的结果表明，从荔波喀斯特洞穴中食用洞穴鱼的内脏或g可能构成相当大的健康风险。