Cosson Richard P, Thiébaut Eric, Company Rui, Castrec-Rouelle Maryse, Colaço Ana, Martins Inês, Sarradin Pierre-Marie, Bebianno Maria João
ISOMer-Laboratoire de Biologie Marine, Faculté des Sciences et Techniques, Université de Nantes, BP 92 208, ISOMer - EMI, EA 2663, F-44322 Nantes cedex 3, France.
Mar Environ Res. 2008 Jun;65(5):405-15. doi: 10.1016/j.marenvres.2008.01.005. Epub 2008 Feb 2.
The variability of the bioaccumulation of metals (Ag, Cd, Cu, Fe, Mn and Zn) was extensively studied in the mussel Bathymodiolus azoricus from five hydrothermal vent sites inside three main vent fields of increasing depth along the Mid-Atlantic Ridge: Menez Gwen, Lucky Strike and Rainbow. Metal bioaccumulation varied greatly between vent fields and even between sites inside a vent field with B. azoricus showing a great capacity to accumulate metals. The bioaccumulation of these metals also varied significantly among tissues. The main target was the gills where metals were mainly associated with soluble compounds whereas in the digestive gland they were mainly associated with insoluble compounds. Storage of metals under insoluble forms in B. azoricus seems to be a major pathway for the detoxification of both essential and non-essential metals. Mussels from the studied fields can be discriminated following their metallic load but the segregation relies partially on the composition of the metal-enriched fluids.
对来自大西洋中脊三个深度递增的主要热液口区（梅内兹格温、幸运 Strike 和彩虹）内五个热液喷口站点的贻贝 Bathymodiolus azoricus 中金属（银、镉、铜、铁、锰和锌）生物累积的变异性进行了广泛研究。热液口区之间甚至一个热液口区内部的不同站点之间，金属生物累积差异很大，B. azoricus 显示出很强的金属累积能力。这些金属的生物累积在不同组织中也有显著差异。主要目标是鳃，金属在鳃中主要与可溶性化合物结合，而在消化腺中它们主要与不溶性化合物结合。B. azoricus 中金属以不溶性形式储存似乎是必需金属和非必需金属解毒的主要途径。根据金属负荷可以区分来自研究区域的贻贝，但这种区分部分依赖于富含金属流体的组成。
