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| Species and distribution of inorganic selenium in the Bohai Sea | |
| 作者姓名： | 姚庆祯 张经 |
| 作者单位： | State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200062 China，Fisheries College Fisheries University of Shanghai Shanghai 200090 China，State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200062 China，College of Chemistry and Chemical Engineering Ocean University of China Qingdao 266003 China |
| 基金项目： | This study was supported by Sino-Germany Joint Project “The Bohai Sea Ecosystem Analysis and Modeling” and NSFC (Nos. 40476037, 40476036, 90211009 and 40406017). |
| 摘 要： | 1 INTRODUCTION Selenium is a ubiquitous trace element that ex- ists in multiple chemical forms in seawater in dif- ferent oxidation states and organic metalloid com- pounds. Selenium is essential for the growth of various photosynthetic species in natural… |
| 关 键 词： | 硒 渤海 无机物 生物物种 海洋化学 |
| 修稿时间： | 2005-04-11 |
Species and distribution of inorganic selenium in the Bohai Sea |
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| Yao Qingzhen,Zhang Jing.Species and distribution of inorganic selenium in the Bohai Sea[J].Chinese Journal of Oceanology and Limnology,2006,24(2):204-211. | |
| Authors: | Yao Qingzhen Zhang Jing |
| Institution: | 1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 200062, Shanghai, China 2. Fisheries College, Fisheries University of Shanghai, 200090, Shanghai, China 3. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 200062, Shanghai, China 4. College of Chemistry and Chemical Engineering, Ocean University of China, 266003, Qingdao, China |
| Abstract: | For studying geochemical behavior of selenium, a marine investigation was conducted in September 1998 cruise in the Bohai Sea. Horizontal and vertical distributions of inorganic selenium and selenite were studied. The inorganic selenium varied from 0.73 to 2.41 nmol/L, with an average of 1.31 nmol/L; while selenite varied from 0.18 to 0.72 nmol/L with an average of 0.47 nmol/L. The average ratio of selenite to selenate was 0.68, and selenate was the predominant species of inorganic selenium in the most study area. Concentrations of inorganic selenium and selenite decreased with distance from the coast. No apparent variations of the concentration between surface and bottom was shown. There were two wa- ter masses in the area, one from the Huanghe (Yellow) River and other from the Yellow Sea. Of the two, Huanghe River was the major source of inorganic selenium. |
| Keywords: | inorganic selenium species distribution Bohai Sea |
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