Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita, C.P. 23096 La Paz, B.C.S., Mexico.
Canadian Rivers Institute & Biology Department, University of New Brunswick, 100 Tucker Park Road, P.O. Box 5050, Saint John, New Brunswick E2L 4L5, Canada.
Mar Pollut Bull. 2018 Apr;129(2):458-468. doi: 10.1016/j.marpolbul.2017.10.014. Epub 2017 Nov 6.
The concentrations of 21 potentially toxic elements (PTEs) were determined in the tissues of Octopus hubbsorum from three locations along the Gulf of California coast: two near Santa Rosalia (SR), a site with historical metal contamination, and one in La Paz Bay, a reference site. Concentrations of Cd, Co, Cr, Mn, Ni, Pb, and Zn in octopus from the two SR sites were higher than those from the reference site, reflecting the higher sediment concentrations at the mining-impacted locations. The highest bioaccumulation and biomagnification of elements was found in digestive gland and branchial hearts, while the lowest was observed in the mantle, where the mean concentration of PTEs did not exceed international standards for human consumption of octopus. This study found elevated PTEs in octopus from sites with high metal contamination, and presents the first data on these elements in octopus from the Gulf of California.
对来自加利福尼亚湾沿岸三个地点的 Octopus hubbsorum 组织中的 21 种潜在有毒元素（PTEs）浓度进行了测定：两个地点在圣罗莎莉亚（SR）附近，一个是历史上金属污染的地点，另一个在拉巴斯湾，是一个参照点。来自两个 SR 地点的章鱼体内的 Cd、Co、Cr、Mn、Ni、Pb 和 Zn 浓度高于参照点，反映了受采矿影响地点的沉积物浓度更高。元素在消化腺和鳃心的生物积累和生物放大最高，而在外套膜中观察到的最低，外套膜中 PTEs 的平均浓度没有超过人类食用章鱼的国际标准。本研究发现，来自金属污染严重地点的章鱼中存在升高的 PTEs，并提供了加利福尼亚湾章鱼中这些元素的首批数据。
