How and Why Fish School: An Information-theoretic Analysis of Coordinated Swimming

鱼群的方式和原因：协调游泳的信息论分析

• 批准号: 1901697
• 负责人: Maurizio Porfiri
• 金额: $ 39万
• 依托单位: New York University
• 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: 2019-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1901697&HistoricalAwards=false
• 关键词: How; Why; Fish; Information; theoretic

This grant will support research that will contribute new knowledge related to fluid-structure interactions and collective dynamics, promoting the progress of science and empowering technological advancements. There is a dire need for advancements in the analysis of complex fluid-structure interactions and in the diagnostics of fluid coupling between solids, without having access to reliable mathematical models. Critical examples across engineering and science include human phonation, clusters of tall civil structures reacting to wind gusts, arrays of active materials for underwater sensing, nanomats of carbon nanotubes, arrays of cilia for fluid mixing and transport, and antennulary setal hairs of copepods. This award supports fundamental research to fill these gaps in knowledge, focusing on fish schooling, whose energy efficiency, geometric complexity, and visual allure have attracted the interest of the scientific community and general public for centuries. This research involves several disciplines bridging data-driven dynamical systems, experimental fluid mechanics, and experimental biology. The multi-disciplinary approach carries momentum in formal and informal learning, by training University students from underrepresented groups, exposing high school students from underprivileged communities to biology, engineering, and mathematics, and outreach to the general public.Recent experimental results demonstrate that at sufficiently large swimming speeds, schooling fish may prefer to swim in a "phalanx" formation, where there is no leader and every fish beats their tail almost in synchrony. The transition from the classical diamond formation to the phalanx challenges the present understanding of the role of vortex interactions in fish schooling, which might be superseded by other hydrodynamic or visual pathways. Yet, it is currently impossible to rigorously test this possibility, due to the lack of data-driven techniques to disentangle causes from effects in coordinated swimming. This project will contribute a mathematically-principled, experimentally-grounded approach to quantify information flow in ensembles of dynamical systems, interacting through multiple pathways that involve varying propagation times and physical variables. Hypothesis-driven, engineering-principled experiments will be conducted toward the discovery and exploration of dynamic structure, information pathways, and energetic mechanisms that underpin coordinated swimming.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.

这笔赠款将支持贡献与流体结构相互作用和集体动力学相关的新知识的研究，促进科学进步并推动技术进步。在无法获得可靠的数学模型的情况下，迫切需要在复杂的流体-结构相互作用的分析和固体之间的流体耦合的诊断方面取得进展。工程和科学领域的关键例子包括人类发声、对阵风做出反应的高大土木结构簇、用于水下传感的活性材料阵列、碳纳米管纳米垫、用于流体混合和运输的纤毛阵列以及桡足类的环状刚毛。该奖项支持基础研究，以填补这些知识空白，重点关注鱼群教育，其能源效率、几何复杂性和视觉吸引力几个世纪以来一直吸引着科学界和公众的兴趣。这项研究涉及连接数据驱动动力系统、实验流体力学和实验生物学的多个学科。多学科方法通过培训来自弱势群体的大学生，让来自贫困社区的高中生接触生物学、工程和数学，并向公众推广，为正式和非正式学习带来动力。最近的实验结果表明，游动速度较大，成群的鱼可能更喜欢以“方阵”形式游泳，这种形式没有领导者，每条鱼几乎同步拍打尾巴。从经典的菱形形成到方阵的转变挑战了目前对涡旋相互作用在鱼群中的作用的理解，这可能会被其他水动力或视觉路径所取代。然而，由于缺乏数据驱动的技术来区分协调游泳的原因和影响，目前不可能严格测试这种可能性。该项目将提供一种基于数学原理、以实验为基础的方法来量化动力系统集合中的信息流，通过涉及不同传播时间和物理变量的多个路径相互作用。将进行假设驱动、工程原理的实验，以发现和探索支持协调游泳的动态结构、信息路径和能量机制。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力评估进行评估，认为值得支持。优点和更广泛的影响审查标准。

项目成果

Reply to: Models of flow through sponges must consider the sponge tissue

回复：通过海绵的流动模型必须考虑海绵组织

• DOI: 10.1038/s41586-021-04381-7
• 发表时间: 2022-03
• 期刊: Nature
• 影响因子: 64.8
• 作者: Falcucci, Giacomo;Polverino, Giovanni;Porfiri, Maurizio;Amati, Giorgio;Fanelli, Pierluigi;Krastev, Vesselin K.;Succi, Sauro
• 通讯作者: Succi, Sauro

Hydrodynamic Performance of Euplectella aspergillum: Simulating Real Life Conditions in the Abyss

Euplectella aspergillum 的水动力性能：模拟深渊中的真实生活条件

• DOI: 10.4208/cicp.oa-2022-0063
• 发表时间: 2022-08
• 期刊: Communications in Computational Physics
• 影响因子: 3.7
• 作者: Falcucci, Giacomo;Amati, Giorgio;Fanelli, Pierluigi;null, Sauro Succi;Porfiri, Maurizio
• 通讯作者: Porfiri, Maurizio

Emergence of in-line swimming patterns in zebrafish pairs

斑马鱼对中直线游泳模式的出现

• DOI: 10.1017/flo.2021.5
• 发表时间: 2021-01
• 期刊: Flow
• 作者: Porfiri, Maurizio;Karakaya, Mert;Sattanapalle, Raghu Ram;Peterson, Sean D.
• 通讯作者: Peterson, Sean D.

Dipole- and vortex sheet-based models of fish swimming

基于偶极子和涡旋片的鱼类游泳模型

• DOI: 10.1016/j.jtbi.2022.111313
• 发表时间: 2023-01
• 期刊: Journal of Theoretical Biology
• 影响因子: 2
• 作者: Zhang, Peng;Peterson, Sean D.;Porfiri, Maurizio
• 通讯作者: Porfiri, Maurizio

Mathematical Modeling of Zebrafish Social Behavior in Response to Acute Caffeine Administration

斑马鱼响应急性咖啡因社会行为的数学模型

• DOI: 10.3389/fams.2021.751351
• 发表时间: 2021-10
• 期刊: Frontiers in Applied Mathematics and Statistics
• 影响因子: 1.4
• 作者: Tuqan, Mohammad;Porfiri, Maurizio
• 通讯作者: Porfiri, Maurizio