In situ analysis of trace elements and isotope ratios in fish otoliths using laser ablation sector field inductively coupled plasma mass spectrometry
In situ analysis of trace elements and isotope ratios in fish otoliths using laser ablation sector field inductively coupled plasma mass spectrometry
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DOI：
10.1139/f00-054
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发表时间：
2000-06
影响因子：
2.4
通讯作者：
S. Thorrold;S. Shuttleworth
中科院分区：
文献类型：
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作者：
S. Thorrold;S. Shuttleworth
应用激光烧蚀扇区场电感耦合等离子体质谱(SF-ICPMS)对鱼耳石中的微量元素和同位素特征进行了分析。大西洋小鱼幼鱼耳石中的锰、锶和钡的剖面以与钙的比值表示，表现出相当大的时空变化，这可能反映了相同尺度上水化学的变化。北卡罗来纳州帕姆利科湾邻近河流耳石Mn：Ca比值的差异可能与河流中的溶解氧水平有关，因为河流中的沉积物中的Mn2+被还原释放。锶和钡剖面似乎准确地反映了Pamlico海湾和切萨皮克湾之间以及切萨皮克湾内不同季节淡水终端成员中溶解的锶和钡的差异。高精度分析黑鼓(Pogonias Cromis)耳石中的锶/钙比值显示出独特的准正弦周期，并与验证的年波段相关联。..。
We applied laser ablation sector field inductively coupled plasma mass spectrometry (SF-ICP-MS) to the analysis of trace element and isotopic signatures in fish otoliths. Manganese, Sr, and Ba profiles across juvenile Atlantic croaker (Micropogonias undulatus) otoliths, expressed as ratios to Ca, showed considerable spatial and temporal variations that were presumably reflective of variations in water chemistry over the same scales. Differences in otolith Mn:Ca ratios between adjacent rivers in Pamlico Sound, North Carolina, may be related to dissolved oxygen levels in the rivers through reductive release of Mn2+ from sediments. Strontium and Ba profiles appeared to accurately reflect differences in dissolved Sr and Ba in freshwater end-members, both between Pamlico Sound and Chesapeake Bay and between seasons within Chesapeake Bay. High-precision analyses of Sr:Ca ratios in a black drum (Pogonias cromis) otolith showed distinctive quasi-sinusoidal cycles that were correlated with validated annual bands. ...