TAXON Estudios Ambientales S.L. C/Uruguay s/n, 30820 Alcantarilla, Spain.
Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Espinardo, Universidad de Murcia, 30100 Murcia, Spain.
Int J Environ Res Public Health. 2021 Dec 19;18(24):13376. doi: 10.3390/ijerph182413376.
Mercury (Hg) is an important heavy metal to consider in marine predators, while selenium (Se) has a natural antagonistic effect on this metal in fish. The Atlantic bluefin tuna (ABFT, ) is a pelagic top-level predator of the trophic web and their Hg muscular content is an object of concern in food safety. Nevertheless, little is known about levels of this metal in remaining tissues, which may be important as by-product source, and its relationship with Se. Thus, concentration of both elements in liver, kidney, brain, gill and bone, in addition to muscle, of ABFT were determined. The kidney was the tissue with the highest concentration of Hg (Total-Hg, THg) and Se, and the Se/THg concentration ratio was similar in all tissues, except bone and muscle. The Selenium Health Benefit Value (HBV) was positive in each specimen and tissue, indicating that the Se plays an important role against Hg not only in the muscle.
汞（Hg）是海洋捕食者中需要考虑的一种重要重金属，而硒（Se）对鱼类中的这种金属具有天然的拮抗作用。大西洋蓝鳍金枪鱼（ABFT）是营养级顶端的海洋捕食者，其肌肉中的汞含量是食品安全关注的对象。然而，人们对其剩余组织中这种金属的含量知之甚少，而这些组织可能是作为副产品的重要来源，并且其与硒的关系也未知。因此，测定了 ABFT 的肝脏、肾脏、大脑、鳃和骨骼以及肌肉中这两种元素的浓度。肾脏是总汞（THg）和硒浓度最高的组织，硒/THg 浓度比在除骨骼和肌肉外的所有组织中都相似。每个样本和组织的硒健康效益值（HBV）均为正值，表明硒不仅在肌肉中对汞具有重要的拮抗作用。
