Collaborative Proposal - BEST: The Impact of Changes in Sea Ice Extent on Primary Production, Phytoplankton Community Structure, and Export in the eastern Bering Sea.
合作提案 - 最佳:海冰范围变化对白令海东部初级生产、浮游植物群落结构和出口的影响。
基本信息
- 批准号:0732359
- 负责人:
- 金额:$ 38.12万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-09-01 至 2011-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Lomas 0732359Bermuda Biological Station for Research, Inc. Funds are provided to test the following core hypothesis: climate-driven interannual variability in sea-ice extent and duration shifts the eastern Bering Sea autotrophic community between one of two states; marginal ice-zone (MIZ) blooms vs. open-water blooms. The MIZ bloom state is characterized by high biomass, diatom-dominated blooms, high pelagic export and tight pelagic-benthic coupling, whereas the open-water bloom state is characterized by lower biomass, flagellate blooms, low pelagic export, and reduced pelagic-benthic coupling. This project will generate measurements of primary production using traditional 14C, 13C methods, and use the innovative triple oxygen isotope technique and dissolved oxygen concentrations to estimate gross and net primary production, respectively. This combination of productivity measurements will be used to test the hypothesis that while gross primary production does not change with sea-ice extent, net production does, and is inversely related to sea-ice extent.Phytoplankton community structure measurements will allow the PIs to test their hypothesis that the autotrophic community switches from a diatom-dominated, high export system in the MIZ, to a flagellate-dominated, lower export, system in open water blooms. This project is part of a larger program designed to develop understanding of the integrated ecosystem of the eastern Bering Sea shelf, a highly productive region of US coastal waters. This ecosystem is home to a major portion of the commercial fisheries of the US and also provides significant resources to subsistence hunters and fisherman of Alaska. Characterization of rates of primary production by phytoplankton and the varying structure of the phytoplankton community in response to changing sea ice conditions will provide information about changes at the base of the food chain that will constrain models of the ecosystem. This information will be essential to a successful integrated ecosystem modeling protocol for the region.
Lomas 0732359Bermuda Biological Station for Research,Inc.提供资金来测试以下核心假设:气候驱动的海冰范围和持续时间的年际变化的两个国家之一之间的东白令海自养社区的转变;边缘冰区(MIZ)的水华与开放水域水华。MIZ水华状态的特点是生物量高,浮游生物占主导地位的水华,高远洋输出和紧密的远洋-底栖耦合,而开放水域水华状态的特点是生物量较低,鞭毛虫水华,低远洋输出,减少远洋-底栖耦合。 该项目将使用传统的14 C、13 C方法对初级生产进行测量,并使用创新的三重氧同位素技术和溶解氧浓度分别估计总初级生产和净初级生产。生产力测量的组合将被用来检验假设,即虽然总初级生产力不随海冰范围而变化,但净生产力却随海冰范围而变化,并且与海冰范围呈负相关。浮游植物群落结构测量将使PI能够检验他们的假设,即在MIZ中,自养群落从浮游植物占主导地位的高输出系统转变为鞭毛占主导地位的低输出系统,在开放水域开花系统。该项目是一个更大的计划的一部分,旨在发展对白令海东部大陆架综合生态系统的理解,这是美国沿海沃茨的一个高产地区。 这个生态系统是美国商业渔业的主要部分,也为阿拉斯加的猎人和渔民提供了重要的资源。 浮游植物初级生产率的特征和浮游植物群落结构的变化,以应对不断变化的海冰条件,将提供信息的变化,在食物链的基础上,将限制生态系统的模型。 这些信息将是必不可少的一个成功的综合生态系统建模协议的区域。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Michael Lomas其他文献
Reply to: Sources of C30 steroid biomarkers in Neoproterozoic–Cambrian rocks and oils
回复:新元古代-寒武纪岩石和石油中 C30 甾体生物标志物的来源
- DOI:
10.1038/s41559-019-1049-1 - 发表时间:
2019-11-25 - 期刊:
- 影响因子:14.500
- 作者:
Christian Hallmann;Benjamin J. Nettersheim;Jochen J. Brocks;Arne Schwelm;Janet M. Hope;Fabrice Not;Michael Lomas;Christiane Schmidt;Ralf Schiebel;Eva C. M. Nowack;Patrick De Deckker;Jan Pawlowski;Samuel S. Bowser;Ilya Bobrovskiy;Karin Zonneveld;Michal Kucera;Marleen Stuhr - 通讯作者:
Marleen Stuhr
Michael Lomas的其他文献
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{{ truncateString('Michael Lomas', 18)}}的其他基金
Collaborative Research: The Bermuda Atlantic Time-series Study: Sustained Biogeochemical, Ecosystem and Ocean Change Observations and Linkages in the North Atlantic (Years 36-40)
合作研究:百慕大大西洋时间序列研究:北大西洋持续的生物地球化学、生态系统和海洋变化观测及联系(36-40年)
- 批准号:
2241456 - 财政年份:2023
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
ICBR: Capacity: Biological Collections: Provasoli-Guillard National Center for Marine Algae and Microbiota (NCMA)
ICBR:容量:生物收藏:普罗瓦索利-吉拉德国家海洋藻类和微生物中心 (NCMA)
- 批准号:
2212613 - 财政年份:2022
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
Collaborative Research: High resolution glider observations enable reassessment of export production in the oligotrophic Sargasso Sea
合作研究:高分辨率滑翔机观测能够重新评估寡营养马尾藻海的出口产量
- 批准号:
1850723 - 财政年份:2019
- 资助金额:
$ 38.12万 - 项目类别:
Standard Grant
CSBR: Living Stocks: Provasoli-Guillard National Center for Marine Algae and Microbiota
CSBR:活畜:普罗瓦索利-吉拉德国家海洋藻类和微生物中心
- 批准号:
1905393 - 财政年份:2019
- 资助金额:
$ 38.12万 - 项目类别:
Standard Grant
Collaborative Research: The Bermuda Atlantic Time-Series Study: Sustained Biogeochemical, Ecosystem, and Ocean Change Observations and Linkages in the North Atlantic (Years 31-35).
合作研究:百慕大大西洋时间序列研究:北大西洋持续的生物地球化学、生态系统和海洋变化观测和联系(第 31-35 年)。
- 批准号:
1756054 - 财政年份:2018
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
Phosphonate Utilization by Eukaryotic Phytoplankton: Who, How, and Where?
真核浮游植物利用磷酸盐:谁、如何以及在哪里?
- 批准号:
1756271 - 财政年份:2018
- 资助金额:
$ 38.12万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: What Controls the Transfer of Diatom Organic Matter to age-0 Pollock Prey in the Bering Sea Ecosystem?
合作研究:是什么控制着白令海生态系统中硅藻有机物向 0 岁狭鳕猎物的转移?
- 批准号:
1603460 - 财政年份:2016
- 资助金额:
$ 38.12万 - 项目类别:
Standard Grant
Collaborative Research: Regional variation of phytoplankton diversity and biogeochemical functioning in the subtropical Indian Ocean
合作研究:副热带印度洋浮游植物多样性和生物地球化学功能的区域变化
- 批准号:
1559021 - 财政年份:2016
- 资助金额:
$ 38.12万 - 项目类别:
Standard Grant
CSBR: Living Stocks: Provasoli-Guillard National Center for Marine Algae and Microbiota
CSBR:活畜:普罗瓦索利-吉拉德国家海洋藻类和微生物中心
- 批准号:
1349350 - 财政年份:2015
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
Collaborative Research: The Bermuda Atlantic Time-series Study: Sustained Biogeochemical, Ecosystem, and Ocean Change Observations and Linkages in the Subtropical North Atlantic.
合作研究:百慕大大西洋时间序列研究:北大西洋副热带地区持续的生物地球化学、生态系统和海洋变化观测及联系。
- 批准号:
1258836 - 财政年份:2013
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
相似海外基金
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合作提案:可持续发展研究和教育整合社会科学和自然科学最佳实践研讨会
- 批准号:
1415082 - 财政年份:2013
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合作提案:可持续发展研究和教育整合社会科学和自然科学最佳实践研讨会
- 批准号:
1142549 - 财政年份:2012
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Collaborative Reasearch: BEST - A service proposal to examine impacts of sea-ice on the distribution of chlorophyll-a over the eastern Bering Sea shelf
合作研究:BEST - 一项服务提案,旨在研究海冰对白令海东部陆架叶绿素-a 分布的影响
- 批准号:
0813985 - 财政年份:2008
- 资助金额:
$ 38.12万 - 项目类别:
Continuing Grant
Collaborative Reaseach: BEST - A service proposal to examine impacts of sea-ice on the distribution of chlorophyll-a over the eastern Bering Sea shelf
合作研究:BEST - 一项服务提案,旨在检查海冰对白令海东部陆架叶绿素-a 分布的影响
- 批准号:
0810459 - 财政年份:2008
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Collaborative Research: BEST - A Service Proposal to Examine Impacts of Sea-ice on Hydrographic Structure and Nutrients over the Eastern Bering Sea Shelf
合作研究:BEST - 检查海冰对东白令海陆架水文结构和营养物影响的服务提案
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$ 38.12万 - 项目类别:
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Collaborative Research: Best - A Service Proposal to Examine Impacts of Sea-ice on The Hydrographic Structure and Nutrients Over the Eastern Bering Sea Shelf During Summer
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- 批准号:
0732680 - 财政年份:2007
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$ 38.12万 - 项目类别:
Continuing Grant
Collaborative Research: BEST - A Service Proposal to Examine Hydrographic Structure and Nutrients over the Eastern Bering Sea Shelf During Summer
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- 批准号:
0732640 - 财政年份:2007
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$ 38.12万 - 项目类别:
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合作研究:BEST - 检查海冰对东白令海陆架水文结构和营养物影响的服务提案
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0732772 - 财政年份:2007
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