Universidad de Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real, Cádiz, Spain.
Bull Environ Contam Toxicol. 2012 Feb;88(2):129-34. doi: 10.1007/s00128-011-0499-1. Epub 2011 Dec 21.
The present study determined the average mercury bioaccumulation in the muscle tissue of four shark species (Carcharhinus falciformis, Prionace glauca, Sphyrna zygaena and Isurus oxyrinchus) captured in the Baja California Peninsula. We also evaluated biomagnification of some prey consumed by sharks. All sharks' species had mercury levels over the limit specified by the Mexican government for human consumption. Blue shark (P. glauca) presented highest mercury values (1.96 ± 1.48 μg/g Hg d.w.) and it was the unique specie that showed a negative correlation with mercury content (Rs = -0.035, p = 0.91). Scomber japonicus was the prey with high content of mercury (0.57 ± 0.02 μg/g).
本研究测定了在加利福尼亚半岛捕获的四种鲨鱼（镰状真鲨、灰鲭鲨、姥鲨和大青鲨）肌肉组织中的平均汞生物累积量。我们还评估了鲨鱼所食用的一些猎物的生物放大作用。所有鲨鱼的汞含量都超过了墨西哥政府规定的人类食用限量。蓝鲨（P. glauca）的汞含量最高（1.96 ± 1.48 μg/g Hg d.w.），是唯一与汞含量呈负相关的物种（Rs = -0.035，p = 0.91）。日本竹荚鱼是汞含量较高的一种猎物（0.57 ± 0.02 μg/g）。
