Postdoctoral Fellowship: OPP-PRF: Exploration of How Historical Climate Events Impacted Pacific Cod (Gadus macrocephalus) Evolution and Fishery Use

博士后奖学金：OPP-PRF：探索历史气候事件如何影响太平洋鳕鱼（Gadus macrocephalus）的进化和渔业利用

• 批准号: 2318914
• 负责人: Sara Schaal
• 金额: $ 30.1万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-12-01 至 2025-11-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2318914&HistoricalAwards=false
• 关键词: Postdoctoral; Fellowship; OPP; PRF; Exploration

Pacific cod has historically been and continues to be an extremely important economic resource for coastal communities. However, the world’s oceans are experiencing rapid warming events that have already negatively impacted fish and fisheries. This research explores how two historical climate events, the Medieval Warming Event and the Little Ice Age, affected Pacific cod populations in the past and influenced their evolution. The project employs zooarchaeological specimens, historical records, and environmental data to track the evolution of Pacific cod and how coastal communities used this resource throughout the last two thousand years. This work will be done in collaboration with National Oceanic and Atmospheric Administration scientists, who may use these findings to inform management decisions of modern-day Pacific cod. This project will train an undergraduate student recruited through the Louis Stokes Alliances for Minority Participation (LSAMP) program in bioinformatics and molecular laboratory techniques, bring evolution education to high school students through an outreach activity using simulations, and conduct additional outreach to K-12 students at Bering Sea Days on St. Paul Island, Alaska. Findings from this research will be shared via conference presentations, peer-reviewed articles, and presentations to Alaska communities.The research investigate how two late Holocene climatic events affected Pacific cod populations. The project tests the hypothesis that climatic events caused significant population declines followed by population recovery, evidenced by loss of genetic diversity, increased genomic adaptation, trophic-level shifts, and variation in the seasonality of fishery use. The PI will use a multidisciplinary approach, combining zooarchaeological, archaeogenomic, and isotopic data from Pacific cod bones excavated from three archaeological sites in the North Pacific. The work will 1) characterize population genomic changes over time; 2) identify signatures of selection in response to historical climatic events, and compare them to modern genomic adaptations; 3) identify whether past climatic events caused trophic-level evolution; and 4) compare and contrast the seasonality of fishery use through time.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

从历史上看，要成为沿海社区的战争，要成为战斗的速度。项目采用ZooArchaeologal将通过Louis Stokes Fortility Partitity Ation（LSAMP）培训生物信息学和分子实验室技术，并在Alaska的Buring Sea Days上向K-12学生进行其他外展。 - 审查的文章和向阿拉斯加社区的演讲。该研究调查了埃内气候赛事的晚期太平洋鳕鱼种群。 ，渔业的季节性变化。现代基因组适应； 3）确定过去的气候事件是否引起了寄养的进化； 4比较和对比渔业时间标准。