Collaborative Research: The Chemical Speciation of Dissolved and Particulate Selenium in an Estuary: Effects on Trophic Transfer and Biogeochemical Cycling

合作研究：河口溶解硒和颗粒硒的化学形态：对营养转移和生物地球化学循环的影响

• 批准号: 9714308
• 负责人: Nicholas Fisher
• 金额: $ 25.58万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714308&HistoricalAwards=false
• 关键词: Collaborative; Research; Chemical; Speciation; Dissolved

This proposal was submitted in response to the Environmental Geochemistry and Biogeochemistry (EGB) solicitation, NSF 06-152. It is being jointly funded by the Divisions of Ocean Sciences and Chemistry. The proposed research will improve our understanding of the speciation and trophic transfer of selenium in San Francisco Bay. Estuaries such as this, are complex physical, chemical and biological environments that are not only geochemically crucial (e.g. elemental transfer from the trash water to the marine environment), but are also economically vital (e.g. fisheries, transportation). The estuarine geochemistry of trace elements has been well studied, but the linkage between the chemical speciation of these trace elements and their cycling throughout the whole estuarine food web is largely unknown. The combination of innovative field and lab studies proposed here will allow researchers to more accurately predict the impact of Se input and speciation on the entire trophic structure of these environments. Moreover, the methods and approach used here for Se should be applicable to other trace elements and other estuarine environments. ** Cutter, OCE-9707946; Fisher OCE-9714308 $ + - - á +f/ªÛ=+- ±- ╝- ¼f + + - À Ã ½ Ú ã ú u ) c Û + À À Ã ³ ½ Ú ¸ +$ ¸ +$ ¸ +$ ¸ +$ ¸ +$ P +$ P +$ P +$ ó +$╝ P P P +$ H K @¹+ Normal ) a c ` A@ +- ` Default Paragraph Font : $@   : Envelope Address Ð @ + Í+ ª 1¢ -▀ ) c Ú Ú ++++ ++ Ú ) , ã Ú b q ' , 3 ³ e l u õ = $ e Õ µ   Ð ª À Á z harriet regina eason&\\CLM-07\HEASON.$\abstracts\cutter.doc harriet regina eason&\\CLM-07\HEASON.$\abstracts\fisher.doc+@HP LaserJet 4L LPT1: HPPCL5MS HP LaserJet 4L HP LaserJet 4L ` @ g , , @ MSUDN HP LaserJet 4L ( ` d HP LaserJet 4L ` @ g , , @ MSUDN HP LaserJet 4L ( ` d Ð ` + Times New Roman + Symbol &+ Arial + CG Times + Book Antiqua + Fences ` A ª f h + F + F + O ª $ ?

该提案是根据NSF 06-152环境地球化学和生物地球化学（EGB）征集而提交的。 该项目由海洋科学和化学司共同资助。 拟议的研究将提高我们的理解硒的形态和营养转移在旧金山弗朗西斯科湾。 像这样的河口是复杂的物理、化学和生物环境，不仅在地球化学上至关重要（例如从垃圾水到海洋环境的元素转移），而且在经济上也至关重要（例如渔业、运输）。 河口微量元素的地球化学已经得到了很好的研究，但这些微量元素的化学形态和它们在整个河口食物网的循环之间的联系在很大程度上是未知的。 创新的现场和实验室研究的结合将使研究人员能够更准确地预测硒输入和物种形成对这些环境的整个营养结构的影响。 此外，这里使用的方法和途径硒应适用于其他微量元素和其他河口环境。 ** 切割器，OCE-9707946; Fisher OCE-9714308 $ + - - á +f/f =+- ±-Δ- ¼f + + - À Ã ½ Ú ã ú u ）c Û + À À Ã ³ ½ Ú +$ P P +$ H K @<$+ 正常 ）a c ` A@ +- `默认段落字体 : $@ ：信封地址 @ + + ）c Ú Ú ++++ ++ Ú ) , ã Ú B Q ' , 3 ³ e L u õ = $ e Õ µ   Ð ª À Á z哈里特regina eason\\CLM-07\HEASON.$\摘要\cutter.doc哈里特regina eason\\CLM-07\HEASON.$\惠普（HP）LaserJet 4L HP LaserJet 4L HP LaserJet 4L ` @ g , , 惠普HP LaserJet 4L （` D HP LaserJet 4L ` @ g , , 惠普HP LaserJet 4L （` D Ð ` + Times New Roman + 符号+ Arial + CG Times + 图书古董 + 栅栏` A a F H + F + F + O ª $ ?