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dc.contributor.authorChaput, Romain
dc.contributor.authorMajoris, John Edwin
dc.contributor.authorBuston, Peter M
dc.contributor.authorParis, Claire B
dc.date.accessioned2019-09-05T07:48:42Z
dc.date.available2019-09-05T07:48:42Z
dc.date.issued2019-09-02
dc.identifier.doi10.1016/j.jtbi.2019.08.018
dc.identifier.urihttp://hdl.handle.net/10754/656690
dc.description.abstractThe dynamics of plankton in the ocean are determined by biophysical interactions. Although physics and biotic behaviors are known to influence the observed patchiness of planktonic populations, it is still unclear how much, and if, group behavior contributes to this biophysical interaction. Here, we demonstrate how simple rules of behavior can enhance or inhibit active group cohesion in plankton in a turbulent environment. In this study, we used coral-reef fish larvae as a model to investigate the interaction between microscale turbulence and planktonic organisms. We synthesized available information on the swimming speeds and sizes of reef fish larvae, and developed a set of equations to investigate the effects of viscosity and turbulence on larvae dispersion. We then calculated the critical dispersion rates for three different swimming strategies - cruise, random-walk, and pause-travel - to determine which strategies could facilitate group cohesion during dispersal. Our results indicate that swimming strategies and migration to low-turbulence regions are the key to maintaining group cohesion, suggesting that many reef fish species have the potential to remain together, from hatching to settlement. In addition, larvae might change their swimming strategies to maintain group cohesion, depending on environmental conditions and/or their ontogenic stage. This study provides a better understanding of the hydrodynamic and biological constraints on group formation and cohesion in planktonic organisms, and reveals a wide range of conditions under which group formation may occur.
dc.description.sponsorshipThis works forms a portion of the PhD dissertation of R. Chaput at the University of Miami. This work was supported by NSF OCE award 1459156 to C.B. Paris. The authors would like to thank J. Lees (Cambridge Proofreading) for proof reading the manuscript, and M. Iskandarani, D. Kirschner, and two anonymous reviewers for the useful comments to the manuscript.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0022519319303303
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of theoretical biology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of theoretical biology, [[Volume], [Issue], (2019-09-02)] DOI: 10.1016/j.jtbi.2019.08.018 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPlankton
dc.subjectPropagules
dc.subjectLarvae
dc.subjectGroup cohesion
dc.subjectOntogeny
dc.subjectSwimming
dc.subjectReynolds number
dc.subjectKolmogorov scale
dc.subjectTurbulence Viscosity
dc.subjectFluid dynamics
dc.titleHydrodynamic and biological constraints on group cohesion in plankton.
dc.typeArticle
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalJournal of theoretical biology
dc.eprint.versionPre-print
dc.contributor.institutionDepartment of Ocean Sciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA
dc.contributor.institutionDepartment of Biology and Marine Program, Boston University, Boston, MA 02215, USA
kaust.personMajoris, John Edwin


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