| タイトル |
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Nitrogen isotopes of organic nitrogen in reef coral skeletons as a proxy of tropical nutrient dynamics
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| 作成者 |
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| アクセス権 |
open access |
| 権利情報 |
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en
Copyright 2011 by the American Geophysical Union
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| 主題 |
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| 内容注記 |
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Abstract
en
Understanding tropical nutrient dynamics is essential for quantifying marine productivity. In tropical and subtropical oceans, however, the spatial and continuous observation of nutrients has been scarce because of low nutrient concentration. The nitrogen isotopes of organic nitrogen in coral skeletons (δ15N_[coral]) could be used to record nitrogenous nutrient origins at oceanic surfaces. Here, we show the intra- and inter-reef variations of δ15N_[coral] in the western Pacific. The zonal distribution of δ15N_[coral] was found inside a coral reef corresponding with δ15N of seawater nitrate (δ15N_[nitrate]). The extended analysis of δ15N_[coral] among various coral reefs also shows a latitudinal gradient from tropical to temperate in the western Pacific. The δ15N_[coral] records high-resolution dynamics of nitrogenous nutrients through the geologic time scale.
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| 出版者 |
en
American Geophysical Union
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
VoR |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/48992
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| 関連 |
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isIdenticalTo
DOI
https://doi.org/10.1029/2011GL049053
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| 収録誌情報 |
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en
Geophysical Research Letters
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巻38
開始ページL19605
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
