Shell microlaminations of the freshwater bivalveHyridella depressa as an archival monitor of manganese water concentration: Experimental investigation by depth profiling using secondary ion mass spectrometry (SIMS)
Shell microlaminations of the freshwater bivalveHyridella depressa as an archival monitor of manganese water concentration: Experimental investigation by depth profiling using secondary ion mass spectrometry (SIMS)
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淡水双壳类动物 Hyridella depressa 的壳微层压作为锰水浓度的档案监测器：使用二次离子质谱 (SIMS) 进行深度剖析的实验研究
DOI：
10.1007/bf01922440
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
C. Ripoll
中科院分区：
文献类型：
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作者：
R. Jeffree;S. Markich;F. Lefèbvre;M. Thellier;C. Ripoll
将淡水单壳双瓣水螅（hyridella depressava）的标本实验地暴露在含有高浓度锰（20 mg l - 1）的合成河水中2天或6天。通过这些双壳类贝壳的珍珠层微层或片（~ 0.6 μm宽度）的SIMS深度剖面显示，随着暴露时间的延长，钙标准化锰的信号强度增加。这些结果支持了双壳类动物壳可以作为水化学回溯监测的主张。它们还表明，1)暴露于高浓度锰水与其在壳中的表达之间存在一个滞后期，2)壳中锰与水生介质达到平衡的时间大于2 ~ 6天。
Specimens of the freshwater unionid bivalveHyridella depressawere experimentally exposed to a synthetic river water containing an elevated Mn water concentration (20 mg l−1) for 2 or 6 days. SIMS depth profiles through the incremental nacre microlaminations or tablets (∼0.6 μm breadth) of the shells of these bivalves showed increases in the signal intensity of Ca-normalised Mn that corresponded to the period of exposure. These results support the proposition that bivalve shells can be used as retrospective monitors of water chemistry. They also indicate that 1) there is a lag phase between exposure to the elevated Mn water concentration and its expression in the shell, and 2) the period for Mn in the shell to reach equilibrium with the aquatic medium is greater that 2 to 6 days.