Seasonal distribution of dissolved iron in the surface water of Sanggou Bay, a typical aquaculture area in China
文献类型： 外文期刊
作者： Zhu, Xunchi 1 ; Zhang, Ruifeng 2 ; Liu, Sumei 4 ; Wu, Ying 2 ; Jiang, Zengjie 5 ; Zhang, Jing 2 ;
作者机构： 1.China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China
2.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
3.Shanghai Jiao Tong Univ, Inst Oceanol, Shanghai 200240, Peoples R China
4.Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
5.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Utilizat Marine Fisheries Res, Qingdao 266071, Peoples R China
6.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266100, Peoples R China
关键词： Dissolved iron; Seasonal distribution; Aquaculture; Sanggou Bay
期刊名称：MARINE CHEMISTRY （ 影响因子：3.807； 五年影响因子：4.186 ）
ISSN： 0304-4203
年卷期： 2017 年 189 卷
页码：
收录情况： SCI
摘要： Sanggou Bay (SGB) is one of the largest aquaculture centers in China. Although iron is an essential biological element, little is known about its distribution in this bay. In this study, seasonal distributions of dissolved iron (dFe) in the surface water of SGB and its surrounding rivers and groundwater were investigated during the four seasons from April 2013 to January 2014. Our results indicate that SGB is a source of dFe on the bay scale. The average dFe concentrations in the surface water of SGB were 12.0 +/- 6.29 nM in spring, 5.00 +/- 2.92 nM in summer, 1.83 +/- 0.42 nM in autumn, and 336 +/- 2.06 nM in winter. External sources of dFe in SGB were ranked in the following order: atmospheric deposition > sediment diffusion > groundwater input > riverine input. The biological iron of the cultivated species (kelp, scallops, and oysters) was the main sink for dFe in SGB. The calculation of Fe*(p) (a tracer defined to quantify the degree of iron limitation in water relative to phosphorus) suggested that dFe was sufficient to support the biological utilization of dissolved inorganic phosphorus in spring and summer but was a potentially limiting factor for primary production in autumn. (C) 2016 Elsevier B.V. All rights reserved.
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