Collaborative Research: Copepod Life History and Lipid Strategy in a Changing Arctic - A New Trait-based Approach to Data Synthesis, Modeling, and End-to-End Integration

合作研究：不断变化的北极中的桡足类生活史和脂质策略——一种基于性状的数据合成、建模和端到端集成的新方法

• 批准号: 1417377
• 负责人: Carin Ashjian
• 金额: $ 4.09万
• 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: 2014
• 资助国家: 美国
• 起止时间: 2014-10-01 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1417377&HistoricalAwards=false
• 关键词: Collaborative; Research; Copepod; Life; History

Many people have argued that the diminishing summer Arctic sea ice extent will result in enhanced growth of small aquatic plants and, consequently, the small marine animals (zooplankton) that feed upon these plants. These animals are the preferred prey of larger animals that are important sources of subsistence and commercial harvest for local Arctic residents. This proposed project explores the idea that the nutritional value of the zooplankton may be altered as their numbers and total mass increase. Thus, predicting the impact of an increase in zooplankton may not be as straightforward as previously assumed.This proposal is motivated by the hypothesis that the impact of future climate change on high-latitude planktivores, such as seabirds, fish, and bowhead whales, will come as much through changes in their prey quality (individual size and lipid content) as through changes in their prey biomass?with decreases in quality often accompanying and outweighing increases in biomass. To explore this hypothesis, the PIs will develop and apply a new kind of model that links climate forcing to impacts on planktivores via the life-history patterns of large zooplankton. A set of coordinated regional and large-scale model applications will examine specific, local versions of the central hypothesis as it applies to calanoid copepods and their predators, in the process refining the model, ensuring its cross-region portability, and also integrating a number of rich US and European zooplankton datasets for the first time.The project will initiate and expand an array of collaborations among researchers in the US and Denmark. These collaborations include capacity-building and a postdoc exchange with the Centre for Ocean Life at the Technical University of Denmark, the leading center of trait-based marine research. Furthermore, using leveraged support from the IGERT Program on Ocean Change at the University of Washington, the PI will visit the Greenland Climate Research Centre (Nuuk) to work with M. Simon and other colleagues on formulating a new, student-centered collaboration on indigenous seafood security and human dimensions of climate change. This is also an opportunity to share early model results with zooplankton, fisheries, and marine mammal researchers there, and develop new applied research directions.

许多人认为，夏季北极海冰范围的减少将导致小水生植物的生长增长，因此，以这些植物为食的小型海洋动物（浮游动物）。 这些动物是较大动物的首选猎物，这些动物是当地北极居民的生存和商业收获的重要来源。 该拟议的项目探讨了浮游动物的营养价值可能会随着其数量和总质量增加而改变的想法。 因此，预测浮游动物增加的影响可能并不像以前假设的那样直接。该提议是由以下假设的动机：假说未来气候变化对高贴态浮游生物的影响，例如海鸟，鱼类和弓形鲸鱼，例如，通过较大的质量和质量差异，会出现质量的变化以及质量的变化，而质量差异很大？超过生物质的增加。为了探讨这一假设，PIS将开发和应用一种新型模型，该模型通过大型浮游动物的生活历史模式将气候强迫与对浮游生物的影响联系起来。一组协调的区域和大规模模型应用程序将检查中心假设的特定本地版本，因为它适用于calanoid copepods及其捕食者，在此过程中，在此过程中，确保了跨区域的可移植性，并将许多富裕的美国和欧洲Zooplankton数据集集成了第一次。这些合作包括能力建设和与基于特质的海洋研究中心领先的丹麦技术大学海洋生活中心的博士后交流。 此外，使用华盛顿大学的IGERT海洋变革计划的杠杆支持，PI将访问格陵兰气候研究中心（NUUK）与Simon和其他同事合作，以制定以学生为中心的新型土著海鲜安全和人类人体层面的合作。这也是与浮游动物，渔业和海洋哺乳动物研究人员共享早期模型结果并开发新的应用研究方向的机会。