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Application of laser ablation ICPMS to trace the environmental history of chum salmon Oncorhynchus keta.

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タイトル: Application of laser ablation ICPMS to trace the environmental history of chum salmon Oncorhynchus keta.
著者: Arai, Takaomi 著作を一覧する
Hirata, Takafumi 著作を一覧する
Takagi, Yasuaki 著作を一覧する
キーワード: Oncorhynchus keta
Otolith microchemistry
Trace element
Laser ablation technique
Migration
発行日: 2007年 2月
出版者: Elsevier
誌名: Marine Environmental Research
巻: 63
号: 1
開始ページ: 55
終了ページ: 66
出版社 DOI: 10.1016/j.marenvres.2006.06.003
抄録: Trace element levels in otoliths of chum salmon Oncorhynchus keta were examined by means of laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). A close linear relationship in the Sr:Ca ratios between EPMA (X-ray analysis with an electron microprobe) and LA-ICPMS analyses was found (p < 0.0001), suggesting that the latter technique could be used to separate the marine and freshwater life phases. Mg:Ca, Cr:Ca, Zn:Ca and Ba:Ca ratios in either the core region or the oceanic growth zone of the otoliths varied among sites. These differences suggest that elemental compositions may reflect environmental variability among spawning (breeding) or habitat sites. Thus, those element ratios demonstrate the potential to be used to distinguish between fish spawning (breeding) sites and habitats for this species of salmon.
関連URI: http://www.sciencedirect.com/science/journal/01411136
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/18886
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 都木 靖彰

 

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