Instituto Tecnologico para el Control del Medio Marino de Galicia (INTECMAR), Spain.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2008 Nov;25(11):1339-44. doi: 10.1080/02652030802163398.
This paper studied the anatomical distribution of mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr), nickel (Ni), arsenic (As), silver (Ag), copper (Cu) and zinc (Zn) in the scallop Pecten maximus and the possible implications in terms of shellfish management. Six organs were analysed: mantle, gills, foot, digestive gland, kidney and gonad. On the basis of their anatomical distribution, two groups of metals were able to be distinguished: the first included Pb, Hg, Ni, Zn and Ag; and the second comprised the four other metals studied. The metals in the first group preferentially accumulated in the kidney (except for Pb), with generally much lower concentrations in the other organs. The metals in the second group accumulated mainly in the digestive gland. As and Cu were included in the second group, but they also had particular inter-organ distribution characteristics. Among the edible organs of the scallop only the adductor muscle contained important proportions of one metal, As (which is very likely accumulated as a non-toxic derivative). A selective evisceration of the metal rich non-edible organs may therefore be considered a reliable measure to be taken with a view to reduce the metal content of scallops used for human consumption. This could be especially relevant for Cd, which is accumulated in high concentrations in the digestive gland.
本文研究了贻贝（Pecten maximus）中汞（Hg）、镉（Cd）、铅（Pb）、铬（Cr）、镍（Ni）、砷（As）、银（Ag）、铜（Cu）和锌（Zn）的解剖分布及其对贝类管理的可能影响。分析了 6 种器官：套膜、鳃、足、消化腺、肾和性腺。根据其解剖分布，可将两组金属区分开来：第一组包括 Pb、Hg、Ni、Zn 和 Ag；第二组包括另外四种研究的金属。第一组金属优先在肾脏中积累（除 Pb 外），而在其他器官中的浓度通常较低。第二组金属主要在消化腺中积累。As 和 Cu 也被归入第二组，但它们也有特定的器官间分布特征。在贻贝的可食用器官中，只有闭壳肌含有相当比例的一种金属，As（很可能作为无毒衍生物积累）。因此，选择性地去除富含金属的不可食用器官可能是一种可靠的措施，可以降低用于人类食用的贻贝中的金属含量。对于在消化腺中积累浓度较高的 Cd 来说，这一点尤其重要。
