Iron and fluorescent dissolved organic matter in an estuarine and coastal system in Japan

Abstract

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 94%) was removed in the mixing process, but humic-like FDOM likely supports the transport of DFe to the coastal zone.