2018年4月
Iron and fluorescent dissolved organic matter in an estuarine and coastal system in Japan
Limnology
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- 巻
- 19
- 号
- 2
- 開始ページ
- 229
- 終了ページ
- 240
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10201-017-0536-9
© 2017, The Japanese Society of Limnology. Terrestrially derived dissolved organic matter (DOM) plays an important role in providing ligands that regulate iron transport to coastal ecosystems. Fluorescent DOM (FDOM) is widely used to evaluate DOM behavior, but the relationship between iron and FDOM distributions in estuarine and coastal systems is poorly understood. In this study, we investigated the distributions of dissolved iron (DFe OpenSPiltSPi 0.7-µm fraction) and FDOM as measured using fluorescence excitation-emission matrices in the Yura River–Tango Bay system. The DFe distribution was not closely correlated with that of the humic-like FDOM, indicating that humic-like FDOM is not the main regulator of the DFe concentration in this system. The relatively low fluorescence intensity of humic-like FDOM demonstrates that colloidal inorganic iron is the major component of riverine DFe. A large proportion of the riverine DFe (CloseSPigtSPi 94%) was removed in the mixing process, but humic-like FDOM likely supports the transport of DFe to the coastal zone.
- リンク情報
- ID情報
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- DOI : 10.1007/s10201-017-0536-9
- ISSN : 1439-8621
- SCOPUS ID : 85037610041