Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, NO-0349 Oslo, Norway.
Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, NO-0349 Oslo, Norway; Norwegian Environment Agency, Strømsveien 96, 0663 Oslo, Norway.
Aquat Toxicol. 2015 Mar;160:1-12. doi: 10.1016/j.aquatox.2014.12.018. Epub 2014 Dec 24.
Mytilus species are important organisms in marine systems being highly abundant and widely distributed along the coast of Europe and worldwide. They are typically used in biological effects studies and have a suite of biological effects endpoints that are frequently measured and evaluated for stress effects in laboratory experiments and field monitoring programmes. Differences in bioaccumulation and biological responses of the three Mytilus species following exposure to copper (Cu) were investigated. A laboratory controlled exposure study was performed with three genetically confirmed Mytilus species; M. galloprovincialis, M. edulis and M. trossulus. Chemical bioaccumulation and biomarkers were assessed in all three Mytilus species following a 4 day and a 21 day exposure to waterborne copper concentrations (0, 10, 100 and 500μg/L). Differences in copper bioaccumulation were measured after both 4 and 21 days, which suggests some physiological differences between the species. Furthermore, differences in response for some of the biological effects endpoints were also found to occur following exposure. These differences were discussed in relation to either real physiological differences between the species or merely confounding factors relating to the species natural habitat and seasonal cycles. Overall the study demonstrated that differences in chemical bioaccumulation and biomarker responses between the Mytilus spp. occur with potential consequences for mussel exposure studies and biological effects monitoring programmes. Consequently, the study highlights the importance of identifying the correct species when using Mytilus in biological effects studies.
贻贝物种是海洋系统中的重要生物，在欧洲和全球沿海地区广泛分布且数量丰富。它们通常用于生物效应研究，具有一系列生物效应终点，这些终点在实验室实验和现场监测计划中经常被测量和评估，以评估应激效应。本研究调查了三种贻贝（厚壳贻贝、欧洲贻贝和里氏贻贝）暴露于铜（Cu）后生物累积和生物反应的差异。通过实验室控制暴露实验，对三种经基因确认的贻贝（厚壳贻贝、欧洲贻贝和里氏贻贝）进行了研究。在为期 4 天和 21 天的暴露于水载铜浓度（0、10、100 和 500μg/L）后，对所有三种贻贝进行了化学生物累积和生物标志物评估。在 4 天和 21 天后均测量了铜的生物累积差异，这表明这些物种之间存在一些生理差异。此外，暴露后还发现一些生物效应终点的反应也存在差异。这些差异被讨论为物种之间的真实生理差异或与物种自然栖息地和季节性周期有关的混杂因素。总的来说，该研究表明，贻贝属之间的化学生物累积和生物标志物反应存在差异，这可能对贻贝暴露研究和生物效应监测计划产生影响。因此，该研究强调了在生物效应研究中使用贻贝时识别正确物种的重要性。
