Chlorophylls, Carotenoids, and Phycobilins as Biomarkers and Tracers of Recycling Processes in the Upper Ocean
Chlorophylls, Carotenoids, and Phycobilins as Biomarkers and Tracers of Recycling Processes in the Upper Ocean
批准号:
9017626
负责人:
Daniel Repeta
金额:
$9.06万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1991
资助国家:
美国
项目状态:
已结题
起止时间:
1991-06-01 至 1992-11-30
中文摘要
本研究将继续对色素地球化学的研究,扩大现有的分析范围,包括藻胆素,并开发和合成适用于HPLC色素分析的色素内标。在过去的三年里,从黑海收集的悬浮颗粒物和沉积物中的光合色素样本,以及美国JOGOFS NASBE的2、3和4腿的一部分,已经进行了分析。目的是确定藻类色素在泛光带和深海中的分布,并研究向沉积物-水界面出口通量的定性(转化反应)和定量方面。目前的努力将使这个项目有一个合乎逻辑的结论。
英文摘要
This research will continue studies of pigment geochemistry to expand current analyses to include phycobilins, and to develop and synthesize a suitable pigment internal standard for HPLC pigment analysis. Over the past three years photosynthetic pigments in suspended particulate matter and sediment trap samples collected from the Black Sea, and as part of legs 2, 3, and 4 of the US JOGOFS NASBE has been analyzed. The goal has been to determine the distribution of algal pigments in the euphotic zone and deep ocean, and to study the qualitative (transformation reactions) and quantitative aspects of the export flux to the sediment-water interface. The present effort will bring this project to a logical conclusion.
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Nitrogen Fixation and the Production of Dissolved Organic Nitrogen in the North Pacific Ocean
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Acquistion of a Nuclear Magnetic Resonance Spectrometer for Biogeochemical Research
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Chemical Characterization and Biogeochemical Cycling of UDOM in Seawater
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Dissolved Organic Nitrogen and Brown Tide Blooms in Long Island Coastal Waters
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财政年份:1998
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Chlorophyll dN-15: An Isotopic Benchmark for Understanding N Cycling and Paleochemistry in the Mediterranean Sea
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财政年份:1997
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U.S.-France Cooperative Research: Studies on Pigments in Seawater and Marine Sediments
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Early Diagenesis of Pigments in Anoxic Marine Sediments
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Aquisition of a High Mass, High Resolution Mass Spectrometer
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财政年份:1992
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依托单位:
A Pigment-Based Study of 13C Fractionation in Microalgae: The Effect of Physiological and Environmental Factors on theDelta 13C of POC in the North Atlantic
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依托单位:
海外基金