Collaborative Research: Climate Forcing of Calanus finmarchicus Populations of the North Atlantic

合作研究：北大西洋的Finmarchicus 种群的气候强迫

• 批准号: 0815047
• 负责人: Dennis McGillicuddy
• 金额: $ 42.08万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0815047&HistoricalAwards=false
• 关键词: Collaborative; Research; Climate; Forcing; Calanus

The overall goal of this project is to understand the processes that regulate the large-scale distribution and abundance of Calanus finmarchicus, a keystone species of the North Atlantic ecosystem. The investigators hypothesize that three main population centers in the North Atlantic are quasi-distinct and selfsustaining. This hypothesis will be tested with combined physical-biological modeling and genetic analysis of C. finmarchicus populations. The modeling approach is to assimilate observations of C. finmarchicus from the Continuous Plankton Recorder (CPR) into the North Atlantic Regional Ocean Modeling System using the adjoint method. The first phase of the project will be to investigate the mean seasonal cycle based on monthly mean CPR data together with the climatological mean circulation. The inverse model solution will be diagnosed to quantify the interconnectivity between the three population centers. Molecular population genetic analysis will yield independent estimates of the rates of exchange between the gyres, which will be compared with model predictions. This assessment of the climatological mean seasonal cycle will set the stage for a study of interannual variability, with particular emphasis on changes in the mean state of the system in association with the North Atlantic Oscillation.The intellectual merit of this effort includes its interdisciplinary approach (physics and biology) and integrated analysis (adjoint modeling and molecular population genetics), which can provide new insights into complex oceanographic phenomena, such as ocean basin-scale processes, that are difficult or impossible to observe directly. Broader impacts of the proposed research will include international collaboration, as well as training of both undergraduate and graduate students. The project will use the outreach capacity of the "Census of the Marine Zooplankton," a Census of Marine Life (CoML) field project led by A. Bucklin, to ensure broad dissemination of results to researchers, students, and educators. This project will produce a video, contribute to CoML synthesis publications, and produce researcher interviews for the CoML web site.

该项目的总体目标是了解调节北大西洋生态系统基石的大规模分布和丰度的过程。研究人员假设北大西洋的三个主要人口中心是准赋予和自我维持的。该假设将通过对Finmarchicus C. c.c。finmarchicus种群的综合物理生物模型建模和遗传分析进行检验。这种建模方法是使用伴随方法吸收从连续浮游生物记录仪（CPR）进入北大西洋地区海洋建模系统的观察结果。该项目的第一阶段是根据每月平均CPR数据以及气候平均循环研究平均季节性周期。逆模型解决方案将被诊断为量化三个人口中心之间的互连性。分子种群遗传分析将产生与模型预测相比的回旋之间的交换速率的独立估计。对气候平均季节性周期的这种评估将为研究年际变异性的研究奠定阶段，特别强调与北大西洋振荡相关的系统平均状态的变化。这项工作的智力优点包括跨学科方法（物理学和生物学）以及其综合分析（邻接模型和分子种群），这些海洋属于海洋，这些海洋属于海洋，这些海洋属于海洋，这些海洋属于海洋，这些海洋属于海洋，这些海洋属于海洋，这些海洋属于海洋。过程很难直接观察。拟议研究的更广泛的影响将包括国际合作，以及对本科生和研究生的培训。该项目将利用A. Bucklin领导的海洋生物（COML）现场项目的“海洋浮游生物”的宣传能力，以确保向研究人员，学生和教育者大量传播结果。该项目将制作视频，有助于COML合成出版物，并为COML网站进行研究人员访谈。