BE/CBC: Quantification and Modeling of DOC and DON Release in Marine Systems: A Study of Increasing Trophic Complexity
BE/CBC: Quantification and Modeling of DOC and DON Release in Marine Systems: A Study of Increasing Trophic Complexity
批准号:
0221825
负责人:
Deborah Bronk
金额:
$169.98万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-15 至 2008-08-31
中文摘要
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英文摘要
ABSTRACTOCE-0221825The study focus is to consider the range of dissolved organic matter (DOM) release processes exhibited by marine phytoplankton species, to describe how these processes regulate and couple to the cycling of fixed carbon and nitrogen species in the surface ocean, and to model, based upon both controlled laboratory and field experiments, the interactions of these chemical species between phytoplankton trophic structure, community succession and senescence as mediated by viral lysis, micro and macrozooplankton grazing and bacterial heterotrophy. A series of hypotheses, involving the production and consumption of dissolved organic carbon (DOC) and nitrogen (DON) compounds, will be tested on each of a series of manipulable culture experiments and a program of seasonal cruises in both estuarine Chesapeake Bay and coastal upwelling dominated Monterey Bay as contrasting physical systems. Modeling objectives include a mechanistically informed simulation of field and culture experiments capable of descriptive and predictive insight as to DOC and DON composition, molecular weight and bio-availability as a function of trophic structure and complexity. Associated educational activities will be centered around highlighting the current research efforts of this multidisciplinary investigation in the context of public education programs coordinated by the Virginia Institute of Marine Sciences Mini-School program. This existing course development program has intensive participatory and outreach components and proposes to expand the opportunities of the pubic to learn about how contemporary scientific issues such as biocomplexity in marine environmental systems are being approached by research scientists.
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会议论文
Collaborative Research: Creatine Cycling in Marine Bacterial and Phytoplankton Assemblages
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批准号:1635369
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项目类别:Standard Grant
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资助金额:$38.8万
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财政年份:2016
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负责人:Deborah Bronk
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依托单位:
GOALI: Effluent Dissolved Organic Nitrogen: Compound Level Assessment of Sources and Sinks
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批准号:1511120
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项目类别:Standard Grant
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资助金额:$32.97万
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财政年份:2015
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负责人:Deborah Bronk
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依托单位:
Collaborative Research: Assessing the bioavailability of effluent organic nitrogen along a freshwater to saltwater continuum
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批准号:0756475
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项目类别:Standard Grant
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资助金额:$19.44万
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财政年份:2008
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负责人:Deborah Bronk
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依托单位:
COLLABORATIVE RESEARCH: Combining Flow Cytometry and Stable Isotope Techniques: A Method to Measure Phytoplankton- and Bacteria-specific Nitrogen and Carbon Uptake
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批准号:0752490
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项目类别:Standard Grant
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资助金额:$23.22万
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财政年份:2008
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负责人:Deborah Bronk
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依托单位:
Collaborative Research: Fate of Recently Fixed N2 in the Eastern Gulf of Mexico: Does the Regeneration of N by Trichodesmium Support the Development of Gymnodinium Breve Blooms?
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批准号:0095940
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项目类别:Standard Grant
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资助金额:$10.99万
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财政年份:2001
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负责人:Deborah Bronk
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依托单位:
Analytical Instrumentation: Mass Spectrometer for the Analysis of Carbon and Nitrogen Isotopic Ratios
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批准号:9617753
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项目类别:Standard Grant
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资助金额:$10.11万
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财政年份:1997
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负责人:Deborah Bronk
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依托单位:
New and Regenerated Production in the Southern Ocean: Ross Sea Studies
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批准号:9530732
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项目类别:Continuing Grant
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资助金额:$12.24万
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财政年份:1996
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负责人:Deborah Bronk
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依托单位:
Inputs and Fates of Organic Nitrogen in Two Land-Margin Ecosystems: Chesapeake Bay and Georgia Coastal Rivers
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批准号:9522617
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项目类别:Standard Grant
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资助金额:$13.78万
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财政年份:1995
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负责人:Deborah Bronk
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依托单位:
ROW: Dissolved Organic Nitrogen Uptake by Autotrophic Plankton Studied with Flow Cytometry
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批准号:9416634
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项目类别:Standard Grant
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资助金额:$1.8万
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财政年份:1994
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负责人:Deborah Bronk
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依托单位:
国内基金
海外基金
Identification and quantification of primary phytoplankton functional types in the global oceans from hyperspectral ocean color remote sensing
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批准号:--
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项目类别:--
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资助金额:160万元
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批准年份:2022
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负责人:李忠平
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依托单位: