Collaborative Research: Response of marine copepods to warming temperature and ocean acidification

合作研究：海洋桡足类对气温升高和海洋酸化的响应

基本信息

批准号：
1559075
负责人：
Melissa Pespeni
金额：
$ 37.72万
依托单位：
University of Vermont & State Agricultural College
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-06-01 至 2020-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1559075&HistoricalAwards=false
关键词：
Collaborative Research Response marine copepods

项目摘要

Over time, our oceans are becoming both warmer and higher dissolved carbon dioxide. The latter condition is called ocean acidification. The consequences of these simultaneous changes for populations of marine organisms are not well understood. For this project, the investigators will conduct a series of laboratory experiments to determine how two closely-related, common species of Acartia copepods will respond to the interactive effects of warming and acidification and also how well these species can adapt over multiple generations to changing ocean conditions. Since these copepods are key species in coastal food webs, results will have important implications for understanding and predicting how marine ecosystems may respond to future climate change. The investigators will share results from the research through traditional print media, case studies, and video mini lectures. The goal will be for educators of all levels to easily access material on climate change and ocean acidification to include in teaching curricula, in alignment with recommendations for universal design for learning. The project is a collaborative effort between an established professor at the University of Connecticut and an early-career female scientist at the University of Vermont. It will provide training and opportunities for collaborative, interdisciplinary research for two postdoctoral investigators, two graduate students and an undergraduate student.The project's main goals are: 1) to test the simultaneous effects of temperature and carbon dioxide under current and future conditions on life history traits throughout the life cycle for two key copepod species, warm-adapted Acartia tonsa and cold-adapted Acartia hudsonica; 2) to test for adaptive capacity of both copepod species to a warmer and carbon-dioxide-enriched ocean; 3) to measure the genetic and maternally-induced changes across multiple generations of experimental selection in future conditions in both copepod species, and to identify the genes and pathways responding to selection. The investigators will use experiments encompassing current and projected temperature and carbon-dioxide conditions, will determine the roles of each variable and their interaction on traits that affect the fitness of both copepod species. They will also determine which life stages are most sensitive to individual or simultaneous stress conditions. Through multigenerational selection experiments, the investigators will identify and characterize the mechanisms of copepod evolutionary adaptation. Finally, they will measure genomic changes across the generations under all four experimental conditions to quantify the relative contributions of genetic and maternally-induced change in the physiological and life history traits of copepods in response to near-future climate conditions.

随着时间的流逝，我们的海洋既变暖又溶解的二氧化碳。后一种条件称为海洋酸化。这些同时变化对海洋生物种群的后果尚不清楚。对于该项目，研究人员将进行一系列实验室实验，以确定两种密切相关的，共同的acartia copepods将如何应对变暖和酸化的互动效应，以及这些物种在多代人中如何适应多代的海洋条件。由于这些Copepods是沿海食品网的关键物种，因此结果将对理解和预测海洋生态系统如何应对未来的气候变化具有重要意义。研究人员将通过传统的印刷媒体，案例研究和视频迷你讲座分享研究结果。目的是让各个级别的教育者轻松访问气候变化和海洋酸化的材料，以在教学课程中，并与通用设计的建议保持一致。该项目是康涅狄格大学成熟教授与佛蒙特大学的早期女护理人员之间的合作努力。 It will provide training and opportunities for collaborative, interdisciplinary research for two postdoctoral investigators, two graduate students and an undergraduate student.The project's main goals are: 1) to test the simultaneous effects of temperature and carbon dioxide under current and future conditions on life history traits throughout the life cycle for two key copepod species, warm-adapted Acartia tonsa and cold-adapted Acartia hudsonica; 2）测试两种Copepod物种对富含二氧化碳的海洋的适应能力； 3）测量在copepod物种中，在未来条件下，多代实验选择的遗传和母体诱导的变化，并确定对选择响应的基因和途径。研究人员将使用包含电流和预测温度和二氧化碳条件的实验，将确定每个变量的作用及其在影响两种copepod物种适应性的性状上的相互作用。他们还将确定哪些生命阶段对个人或同时应力条件最敏感。通过多代选择实验，研究人员将识别并表征CopePod进化适应的机制。最后，他们将在所有四个实验条件下衡量整个世代的基因组变化，以量化copepods生理和生命历史特征的遗传和母体诱导的变化对近乎未来的气候条件的相对贡献。