APPLICATION OF MICRO-PIXE ANALYSIS FOR A MIGRATION HISTORY STUDY OF HUCHO PERRYI FOCUSED ON STRONTIUM DISTRIBUTION IN FISH SCALES
APPLICATION OF MICRO-PIXE ANALYSIS FOR A MIGRATION HISTORY STUDY OF HUCHO PERRYI FOCUSED ON STRONTIUM DISTRIBUTION IN FISH SCALES
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显微像素分析在哲罗鱼洄游史研究中的应用（重点关注鱼鳞中锶的分布）
DOI：
10.1142/s0129083508001326
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
H. Imaseki
中科院分区：
文献类型：
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作者：
K. Suzuki;T. Yoshitomi;Y. Kawaguchi;K. Edo;S. Homma;T. Ishikawa;H. Iso;H. Imaseki
库页鱼是日本最大的淡水鱼之一，由于不分青红皂白的捕捞、水污染和河流建设，它在日本濒临灭绝。然而，关于该物种的可解释的生态信息很少。我们用电感耦合等离子体质谱分析鱼鳞中锶的含量，并用微束扫描PIXE(Micro-PIXE)分析鱼鳞中脊(生长线)上的锶分布，研究了鱼鳞中锶的迁移历史。在Sarufutsu海岸采集的Perryi鲑鱼鳞片中的锶含量高于在Shumarinai淡水湖采集的鲑鱼。Micro-PIXE谱线分析表明，舒马里奈湖样品的标度锶值从边缘到核心始终保持在较低的水平。Sarufutsu海岸样品的锶水平从边缘到核心保持较高的水平，从边缘第二到第四位置的锶水平比舒马里奈湖样品的平均水平高出约10倍。这些结果表明，来自Sarufutsu海岸的H.perryi经历了海洋环境。
Sakhalin taimen, Hucho perryi, is one of the largest freshwater fish in Japan, where it is close to extinction because of indiscriminate fishing, water pollution, and river construction. Interpretable ecological information about the species, however, is scarce. We examined the migration history of H. perryi by analysis of strontium (Sr) content in fish scales using inductively coupled plasma mass spectrometry and Sr distributions associated with ridges (growth lines) in the scales, with micro-beam scanning PIXE (micro-PIXE) analyses. Sr levels in the scales of H. perryi collected along the Sarufutsu coast were higher than those of salmonid collected at Shumarinai, a freshwater lake. Micro-PIXE line analyses showed that the scale Sr values of the Shumarinai Lake samples remained consistently low from the edge toward the core of the scales. The Sr values from the Sarufutsu coast samples remained relatively high from the edge toward the core; Sr levels from second to fourth position from the edge were about ten times higher than the mean levels of Shumarinai Lake samples. These results suggested that H. perryi from the Sarufutsu Coast had experienced the marine environment.
耳石的 Sr:Ca 比率揭示了库页岛哲罗鱼 (Hucho perryi) 向下游迁移的证据。
DOI：
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发表时间：
2004
期刊：
Ichthyological Research 51
影响因子：
--
作者：
Arai;T.et al.
通讯作者：
T.et al.