CAMEO: Collaborative Research: Patterns of Connectivity in Northwest Atlantic Fishery Ecosystems

CAMEO：合作研究：西北大西洋渔业生态系统的连通模式

• 批准号: 1041713
• 负责人: Robert Latour
• 金额: $ 11.76万
• 依托单位: College of William & Mary Virginia Institute of Marine Science
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1041713&HistoricalAwards=false
• 关键词: CAMEO; Collaborative; Research; Patterns; Connectivity

Intellectual Merit: The importance of fluxes across ecosystem boundaries is a characteristic of marine ecosystems that differentiates them from their terrestrial counterparts. From this viewpoint, any comparative analysis of marine ecosystems should address the patterns and degree of connectivity among ecosystems to be of highest utility. Here the investigators will conduct a suite of analyses that seek to quantify the sources, patterns and consequences of connectivity among 10 marine fishery ecosystems that together from the northwest Atlantic coastal shelf ecosystem. By conducting analyses in a hierarchical fashion with smaller ecosystems nested spatially within larger ecosystems they hope to identify scaling relationships in the ecological processes that characterize the dynamics of key species within these ecosystems. This work seeks to quantify the patterns and degree of connectivity among ecosystems in the Northwest Atlantic. Specifically, the investigators will conduct statistical analyses of empirical data from each ecosystem to quantify patterns in univariate, distribution and multivariate descriptors of their structure. They will also undertake time series analyses to describe relationships in the responses of different taxa and groups within each ecosystem. They will use the results of analyses conducted on the highly studied nearshore ecosystems as hypotheses to be tested on the somewhat sparser data of the offshore ecosystems. These analyses will delineate patterns of functional connectivity among ecosystems. They will also construct dynamic models of differing complexity to understand the principal consequences of the connectivity demonstrated in the first two objectives on ecosystem function. Models will include biomass dynamic and coupled predator-prey simulations that will consider the impacts of removals from the overall region globally and more specific patterns of localized spatial depletion.Broader Impacts: Agencies, at all levels, are seeking to develop ecosystem-approaches to management (EAM) of fisheries in efforts to ensure long-term sustainability of the exploited marine resources and ecosystems. Central to EAM are Integrated Ecosystem Assessments (IEAs), which provide the societal, legal, and scientific basis to examine marine ecosystems at multiple scales -spatially, temporally, and jurisdictionally - and to coordinate the management of coastal ecosystem resources across multiple sectors. The open nature of marine ecosystems is a challenge for IEAs and EAM and particularly so for the Northwest Atlantic Coastal Shelf (NWACS) ecosystem. Key to management in this open ecosystem is assessment of the connectivity among key biota across space and time in the different regions. Here, the investigators will analyze ecosystem structure and function at a range of scales in a suite of interconnected regional ecosystems to support IEA development.

知识分子的优点：跨生态系统边界的通量的重要性是海洋生态系统的特征，它使它们与陆地同行区分开来。从这个角度来看，对海洋生态系统的任何比较分析都应解决生态系统之间的连通性和程度最高的效用。在这里，调查人员将进行一系列分析，以试图量化10个海洋渔业生态系统中连通性的来源，模式和后果，这些生态系统共同从西北大西洋沿海货架生态系统共同。通过以层次方式进行分析，以较小​​的生态系统在空间嵌套在较大的生态系统中，他们希望在生态过程中识别出比例的扩展关系，这些生态过程表征了这些生态系统中关键物种的动态。这项工作旨在量化西北大西洋生态系统之间的模式和连通性。具体而言，研究人员将对每个生态系统进行经验数据进行统计分析，以量化其结构的单变量，分布和多元描述中的模式。他们还将进行时间序列分析，以描述每个生态系统中不同分类单元和组的响应中的关系。他们将使用对经过研究的近海生态系统进行的分析结果，作为要在海上生态系统的更稀疏数据上测试的假设。这些分析将描述生态系统之间功能连通性的模式。他们还将构建不同复杂性的动态模型，以了解前两个目标在生态系统功能中所证明的连接性的主要后果。模型将包括生物量动态和耦合捕食者 - 捕集式模拟，这些模拟将考虑全球整个区域的撤离的影响以及局部空间耗尽的更具体模式。Boader的影响：各个层面上的机构正在寻求将生态系统 - 系统地吸收到渔业的管理（EAM），以确保渔业的长期可持续性和良好的资源。 EAM的核心是综合生态系统评估（IEAS），它们提供了社会，法律和科学的基础，可以在多个尺度，时间，时间和管辖权上检查海洋生态系统，并协调多个部门沿海生态系统资源的管理。海洋生态系统的开放性是IEAS和EAM的挑战，尤其是西北大西洋沿海货架（NWACS）生态系统。在这个开放的生态系统中，管理的关键是评估不同区域跨空间和时间之间关键生物群的连通性。在这里，研究人员将在一系列相互联系的区域生态系统中分析生态系统的结构和功能，以支持IEA开发。