In this study the levels of As, Cd, Cu, Hg, Pb, Se, Zn and Se:Hg molar ratios, in muscle and liver of the endemic catshark Galeus piperatus from the northern Gulf of California (NGC) and relationships with biological parameters, were determined. Arsenic presented the highest levels for both tissues and Pb the lowest. The Se:Hg molar ratios were >1. Sex was not a determining factor in accumulation of elements. The differences in the levels of the studied elements between tissues might be due to their physiological functions and the availability of the metal(loid)s. The diet was considered as an important contribution pathway of these elements despite the fact that G. piperatus feeding habits are still unknown. More research is necessary to clearly understand the interactions between the biology of G. piperatus and the bioavailability of the studied elements and use this endemic shark species as a potential deep-sea biomonitor in NGC.

中文翻译：

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加利福尼亚湾北部深海水域特有胡椒猫鲨 Galeus piperatus 中的必需和非必需元素：基线水平和 Se 比率


在这项研究中，确定了来自加利福尼亚湾北部 （NGC） 的地方猫鲨 Galeus piperatus 肌肉和肝脏中 As、Cd、Cu、Hg、Pb、Se、Zn 和 Se：Hg 摩尔比的水平以及与生物学参数的关系。砷在两个组织中都呈现最高水平，Pb 最低。Se：Hg 摩尔比为 >1。性别不是元素积累的决定因素。组织之间研究元素水平的差异可能是由于它们的生理功能和金属的可用性。饮食被认为是这些元素的重要贡献途径，尽管 G. piperatus 的摄食习惯仍然未知。需要更多的研究来清楚地了解 G. piperatus 的生物学特性与所研究元素的生物利用度之间的相互作用，并将这种特有鲨鱼物种用作 NGC 中潜在的深海生物监测器。