Dual Phase-Shifted Ipsilateral Metachrony in<i>Americamysis bahia</i>

Ruszczyk, Melissa; Webster, D. R.; Yen, Jeannette

doi:10.1093/icb/icab119

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…Other studies of metachronal swimmers show that higher beat frequencies (a temporal parameter; Kils 1981 ; Alexander 1988 ; Murphy et al 2011 ; Heimbichner Goebel et al. 2020 ; Ruszczyk et al. 2021 ; Ruszczyk et al.…”

Section: Discussionmentioning

confidence: 94%

“…Complete metachronal swimmers, such as krill ( Euphausia superba ) and mysid shrimp ( Americamysis bahia ), exhibit the largest stroke angle in P5 that then decreases posteriorly to the smallest stroke angle in P1 ( Murphy et al. 2011 ; Ruszczyk et al 2021 ). Yet, mantis shrimp in this study exhibit the smallest stroke angle in P5.…”

Section: Discussionmentioning

confidence: 99%

“…Jet-assisted walking in lobsters utilizes a metachronal power stroke and phase-shifted grouping during the recovery stroke ( Lim and DeMont 2009 ). Some mysid shrimp beat their left and right pleopods independently of each other in a dual-phase metachronal sequence ( Ruszczyk et al. 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Mantis Shrimp Locomotion: Coordination and Variation of Hybrid Metachronal Swimming

Hanson

Ray

Santhanakrishnan

et al. 2023

Integrative Organismal Biology

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Across countless marine invertebrates, coordination of closely spaced swimming appendages is key to producing diverse locomotory behaviors. Using a widespread mechanism termed hybrid metachronal propulsion, mantis shrimp swim by moving five paddle-like pleopods along their abdomen in a posterior to anterior sequence during the power stroke and a near-synchronous motion during the recovery stroke. Despite the ubiquity of this mechanism, it is not clear how hybrid metachronal swimmers coordinate and modify individual appendage movements to achieve a range of swimming capabilities. Using high speed imaging, we measured pleopod kinematics of mantis shrimp (Neogonodactylus bredini) while they performed two swimming behaviors: burst swimming and taking off from the substrate. By tracking each of the five pleopods, we tested how stroke kinematics vary across swimming speeds and the two swimming behaviors. We found that mantis shrimp achieve faster swimming speeds through a combination of higher beat frequencies, smaller stroke durations, and partially via larger stroke angles. The five pleopods exhibit non-uniform kinematics that contribute to the coordination and forward propulsion of the whole system. Micro-hook structures (retinacula) connect each of the five pleopod pairs and differ in their attachment across pleopods—possibly contributing to passive kinematic control. We compare our findings in N. bredini to previous studies to identify commonalities across hybrid metachronal swimmers at high Reynolds numbers and centimeter scales. Through our large experimental dataset and by tracking each pleopod's movements, our study reveals key parameters by which mantis shrimp adjust and control their swimming, yielding diverse locomotor abilities.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

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Mantis Shrimp Locomotion: Coordination and Variation of Hybrid Metachronal Swimming

Hanson

Ray

Santhanakrishnan

et al. 2023

Integrative Organismal Biology

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Metachronal Motion across Scales: Current Challenges and Future Directions

Byron

Murphy

Katija

et al. 2021

Integrative and Comparative Biology

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Metachronal motion is used across a wide range of organisms for a diverse set of functions. However, despite its ubiquity, analysis of this behavior has been difficult to generalize across systems. Here we provide an overview of known commonalities and differences between systems that use metachrony to generate fluid flow. We also discuss strategies for standardizing terminology and defining future investigative directions that are analogous to other established subfields of biomechanics. Lastly, we outline key challenges that are common to many metachronal systems, opportunities that have arisen due to the advent of new technology (both experimental and computational), and next steps for community development and collaboration across the nascent network of metachronal researchers.

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Metachronal Coordination of Multiple Appendages for Swimming and Pumping

Byron

Santhanakrishnan

Murphy

2021

Integrative and Comparative Biology

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As a strategy for creating fluid flow, metachronal motion is widespread across sizes and species, including a broad array of morphologies, length scales, and coordination patterns. Because of this great diversity, it has not generally been viewed holistically: the study of metachrony for swimming and pumping has historically been taxonomically siloed, in spite of many commonalities between seemingly disparate organisms. The goal of the present symposium was to bring together individuals from different backgrounds, all of whom have made substantial individual contributions to our understanding of the fluid dynamics of metachronal motion. Because these problems share a common physical-mathematical basis, intentionally connecting this community is likely to yield future collaborations and significant scientific discovery. Here, we briefly introduce the concept of metachronal motion, present the benefits of creating a research network based on the common aspects of metachrony across biological systems, and outline the contributions to the symposium.

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Dual Phase-Shifted Ipsilateral Metachrony inAmericamysis bahia

Cited by 4 publications

References 35 publications

Mantis Shrimp Locomotion: Coordination and Variation of Hybrid Metachronal Swimming

Mantis Shrimp Locomotion: Coordination and Variation of Hybrid Metachronal Swimming

Metachronal Motion across Scales: Current Challenges and Future Directions

Metachronal Coordination of Multiple Appendages for Swimming and Pumping

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