Collaborative Research: RAPID: Storm and tropical cyclone effects on the spawning activity, larval dispersal, and ecosystem impacts of an endangered marine predator

合作研究：RAPID：风暴和热带气旋对濒临灭绝的海洋捕食者的产卵活动、幼虫扩散和生态系统的影响

• 批准号: 2006295
• 负责人: Claire Paris
• 金额: $ 9.67万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-12-15 至 2021-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2006295&HistoricalAwards=false
• 关键词: Collaborative; Research; RAPID; Storm; tropical

Collaborative Research: RAPID: Storm and tropical cyclone effects on the spawning activity, larval dispersal, and ecosystem impacts of an endangered marine predatorDr. Yannis Papastamatiou (Florida International University), Dr. Alastair Harborne (FIU), Dr. Kevin Boswell (FIU), Dr. Claire Paris-Limouzy (University of Miami)Many species of reef fish form large seasonal gatherings at specific locations to spawn. Such aggregations may lead to population overfishing if not well managed. Additionally, spawning aggregations in shallow coastal areas may also be susceptible to prolonged surge, high volumes of freshwater run-off and potentially changes in salinity associated with large storms and tropical cyclones. Yet, the impact from such events, which are becoming increasingly prevalent, has not been studied. This study investigates the impacts of hurricane Dorian on spawning activity of the endangered goliath grouper (Epinephelus itajara) fish species off the southeast coast of Florida. The broader impacts of the project relate to its value to inform fisheries management plans for goliath grouper. The project supports two early career faculty members and training of a postdoctoral researcher, a graduate student, and several undergraduate students at Florida International University. Hurricane Dorian occurred at the peak of goliath grouper's spawning aggregation in Florida's shallow waters. This project will take advantage of ongoing acoustic surveys since 2017, telemetry, biophysical modelling, and behavioral studies of goliath grouper at spawning sites to assess how hurricane Dorian: 1) influence the duration of spawning events and the size of aggregations, 2) affect individual residency to spawning sites and spawning behavior, 3) change the dispersal patterns of goliath grouper larvae and identify nursery habitats with/without storm or hurricane events, and 4) assess the potential for trophic cascades at reef ecosystem level due to goliath grouper spawning aggregations as determined by changes on lower trophic level foraging rates and the subsequent changes to the benthos. Our combination of methods will provide insight into how storms affects spawning behavior from the individual to the group level, and how subsequent larval recruitment may be influenced. Finally, this project tests the utility of acceleration sensors for identifying spawning behavior in free ranging fishes, which will be of major significance to spawning studies across taxa.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.

合作研究：快速：风暴和热带气旋对一种濒危海洋捕食者的产卵活动、幼虫扩散和生态系统影响。Yannis Papastamatiou博士(佛罗里达国际大学)，Alastair Harborne博士(FIU)，Kevin Boswell博士(FIU)，Claire Paris-Limouzy博士(迈阿密大学)许多种类的珊瑚鱼在特定地点形成大型季节性聚集产卵。如果管理不好，这种聚集可能会导致种群过度捕捞。此外，浅水沿海地区的产卵群也可能容易受到长期激增、大量淡水径流以及与大风暴和热带气旋有关的盐度潜在变化的影响。然而，此类事件的影响还没有得到研究，这些事件正变得越来越普遍。这项研究调查了飓风多里安对佛罗里达州东南海岸濒临灭绝的巨尾石斑鱼(Epinephelus Itajara)鱼种产卵活动的影响。该项目的更广泛影响与其为巨尾石斑鱼渔业管理计划提供信息的价值有关。该项目支持两名早期职业教师和佛罗里达国际大学一名博士后研究员、一名研究生和几名本科生的培训。飓风多里安发生在巨人石斑鱼在佛罗里达州浅水水域产卵的高峰期。该项目将利用自2017年以来正在进行的声学调查、遥测、生物物理模拟和产卵地点巨石斑鱼的行为研究，以评估飓风多里安如何影响产卵事件的持续时间和群落的大小，2)影响个体对产卵地点和产卵行为的栖息，3)改变巨尾石斑鱼幼体的扩散模式，确定有/没有风暴或飓风事件的苗圃栖息地，以及4)评估巨尾石斑鱼产卵聚集在珊瑚礁生态系统水平上的营养级联的可能性，如较低营养层觅食率的变化和随后底栖动物的变化所确定的。我们的方法组合将提供洞察力，了解风暴如何影响从个体到群体的产卵行为，以及随后的幼虫招募可能如何受到影响。最后，该项目测试了加速度传感器用于识别自由活动鱼类产卵行为的效用，这将对跨类别的产卵研究具有重要意义。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。