Larval orientation, dispersal and connectivity in a brachyuran crab under ocean acidification and elevated temperature

海洋酸化和高温下短尾蟹幼虫的定向、分散和连接

• 批准号: 2049047
• 负责人: Daniel Holstein
• 金额: $ 92.2万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2049047&HistoricalAwards=false
• 关键词: Larval; orientation; dispersal; connectivity; brachyuran

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).The stone crab fishery is a multimillion-dollar commercial industry in Florida, which may not be sustainable given forecasted climate change and the predicted increases in extreme weather events. Stone crab larval swimming behavior and survivorship are negatively affected by reduced pH (ocean acidification) and elevated temperatures. These conditions are expected to become more common and widespread along the western Florida coast and may impact the supply of larvae that settle into and replenish both unfished and fished populations. Changes in larval dispersal could lead to recruitment failure; however, the extent of such an outcome is currently unknown. The goal of this study is to develop models that forecast the abundance and distribution of Florida’s stone crabs under future climate scenarios. Laboratory experiments are quantifying how temperature and pH affect larval survivorship and behavior. Results from the laboratory studies are being integrated with information on ocean currents and chemistry into a biophysical model. This model predicts the effects of climate change on the stone crab population by combining projections of the physical and chemical environment with climate-induced changes to larval behavior. The broader impacts include relevance to sustainable management of the stone crab and other coastal crustacean fisheries, training opportunities for undergraduate and graduate students, and educational outreach. Curriculum development is occurring in partnership with Title-1 schools, and high-school students are developing short documentaries to be entered into a marine science film festival at Florida Southern College.In many coastal habitats, ocean acidification (OA) is occurring at an accelerated rate relative to end-of-century projections, largely due to localized wetland degradation, increased runoff, and eutrophication, all of which amplify variability in coastal pH. The ability to project future persistence of marine species and the sustainability of coastal fisheries depends on understanding how the combined effects of acidification and elevated temperature impact population connectivity and recruitment. Even small changes in planktonic larval survivorship, behaviors, or dispersal can lead to large population changes; however, predicting these changes requires understanding the biology of the organisms within the context of how the physical and chemical environment is changing. When exposed to reduced pH and elevated temperature conditions similar to those expected at the end of the century, some larvae not only experience increases in mortality, but they also change their swimming behavior, which in turn alters their dispersal in the coastal ocean. This study is quantifying the combined impacts of OA and elevated temperature on the dispersal and connectivity of a brachyuran crustacean, the stone crab. Controlled laboratory studies are measuring the effects of changes in pH and temperature on larval vertical swimming behavior, development, and survivorship. The results from the laboratory studies are being integrated with high-resolution spatially and temporally realistic hydrodynamic and carbonate chemistry projections in a coupled biophysical model to predict modifications to larval dispersal and their impact on population connectivity and persistence under different environmental conditions. This study is providing new insights into how larval behaviors affect the resilience of a crustacean metapopulation by quantifying dispersal patterns and connectivity, potential population fragmentation, and overall recruitment under current and future climate scenarios.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.

该奖项是全部或部分资金的，因为佛罗里达州的AA多中木渔业是Multimillar Commerci Al行业，鉴于预测的气候变化，这可能是不可持续的。受pH值降低（海洋酸）和温度升高。在未来的气候方案下，预测Abundancast的开发模型，将其纳入洋流。合并专业人士。科学电影filorida南部学院。在许多沿海栖息地，海洋酸化（OA）相对于世纪末项目的加速速度相关，这很大程度上是由于本地化的，增加的径流l，其能力在沿海pH值中未来的海洋物种和沿海地区的可持续性取决于酸化和升高的温波分化和招募的升级。 d在中心的尽头，一些幼虫没有增加死亡率，但也会变化。 brashyuran甲壳动物的分散和v，控制的实验室研究正在衡量pH和温度变化对幼虫垂直游泳行为，发育和生存研究的影响。在耦合的生物物理模型中，颞的流体动力和碳酸盐预测预测了变体的分散体以及对不同环境条件下人口连接和持久性的影响。分裂，以及在当前和未来的情况下的整体招聘。该奖项Reflems nsf'sf'sf'sfly使命，并被认为是值得通过Toundation的知识分子优点和更广泛影响的评估来通过评估来支持的。

项目成果

Habitat selection by post-settlement juvenile stone crabs (Menippe mercenaria) and predation risk in shallow near-shore habitats

• DOI: 10.1016/j.jembe.2021.151679
• 发表时间: 2022-02-01
• 期刊: JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
• 影响因子: 2
• 作者: Boehme-Terrana，Linae;Roux-Osovitz，Michelle;Gravinese，Philip M.
• 通讯作者: Gravinese，Philip M.

HANDS-ON OCEANOGRAPHY • Do pH-Variable Habitats Provide Refuge for Stone Crabs from Coastal Acidification?

海洋学实践 – pH 值变化的栖息地是否为石蟹提供了免受沿海酸化影响的庇护所？

• DOI: 10.5670/oceanog.2023.105
• 发表时间: 2023
• 期刊: Oceanography
• 影响因子: 2.8
• 作者: Gravinese, Philip;Stewart, Samantha;Smith, Abigail;Paradis, Judy
• 通讯作者: Paradis, Judy

Caribbean king crab larvae and juveniles show tolerance to ocean acidification and ocean warming

加勒比帝王蟹幼虫和幼蟹表现出对海洋酸化和海洋变暖的耐受性

• DOI: 10.1007/s00227-022-04053-8
• 发表时间: 2022
• 期刊: Marine Biology
• 影响因子: 2.4
• 作者: Gravinese, Philip M.;Perry, Shelby A.;Spadaro, Angelo Jason;Boyd, Albert E.;Enochs, Ian C.
• 通讯作者: Enochs, Ian C.

Climate Change Will Fragment Florida Stone Crab Communities

• DOI: 10.3389/fmars.2022.839767
• 发表时间: 2022-07
• 作者: Lauranne Alaerts;T. Dobbelaere;Philip M. Gravinese;E. Hanert