Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/153648
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dc.contributor.authorShen, Xinhuien_US
dc.contributor.authorYao, Xinen_US
dc.contributor.authorMarcosen_US
dc.contributor.authorFu, Henry C.en_US
dc.date.accessioned2021-12-20T08:53:52Z-
dc.date.available2021-12-20T08:53:52Z-
dc.date.issued2021-
dc.identifier.citationShen, X., Yao, X., Marcos & Fu, H. C. (2021). Can the mechanoreceptional setae of a feeding-current feeding copepod detect hydrodynamic disturbance induced by entrained free-floating prey?. Limnology and Oceanography, 66(12), 4096-4111. https://dx.doi.org/10.1002/lno.11945en_US
dc.identifier.issn1939-5590en_US
dc.identifier.urihttps://hdl.handle.net/10356/153648-
dc.description.abstractCopepods that catch prey using feeding currents beat their cephalic appendages to generate flow entrainment, and detect the presence of nearby prey through the mechanoreceptional setae on the antennules and other appendages. It remains unclear whether the feeding current can be used by the copepod to gain information about its surroundings by sensing when the current is disturbed by nearby particles. In this article, we present a numerical model to address how much the presence of free-floating prey can alter the feeding current velocity field, and how these prey-induced disturbances modify setal deformation patterns. We prescribe the beating strokes of the feeding appendages, and quantify the changes in the bending flows across the setae and setal deformations due to the prey entrainment. We find that, first, the seta bends more due to the time-averaged velocity component of the feeding current, while filtering out the oscillatory component. Second, 100 μm diameter free-floating prey do not induce any noticeable change in deformations of the proximal and distal setae unless they are less than 10 or 5.5 prey radii from the antennules, respectively. Larger prey cause bigger flow disturbances than small prey, which are expected to be even harder to detect. Last, if setae are responsive to changes in deformation relative to the deformations in the absence of prey, the distal seta may have long-ranged sensitivity to assist in detection of prey near the proximal seta, but if setae are responsive to absolute changes in deformation, both setae have very short-ranged sensitivity.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.language.isoenen_US
dc.relationMOE2018-T2-2-052en_US
dc.relation.ispartofLimnology and Oceanographyen_US
dc.rights© 2021 Association for the Sciences of Limnology and Oceanography. All rights reserved. This paper was published in Limnology and Oceanography and is made available with permission of Association for the Sciences of Limnology and Oceanography.en_US
dc.subjectEngineering::Mechanical engineering::Fluid mechanicsen_US
dc.titleCan the mechanoreceptional setae of a feeding-current feeding copepod detect hydrodynamic disturbance induced by entrained free-floating prey?en_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.identifier.doi10.1002/lno.11945-
dc.description.versionSubmitted/Accepted versionen_US
dc.identifier.scopus2-s2.0-85116469505-
dc.identifier.issue12en_US
dc.identifier.volume66en_US
dc.identifier.spage4096en_US
dc.identifier.epage4111en_US
dc.subject.keywordsCopepoden_US
dc.subject.keywordsSetaen_US
dc.subject.keywordsMechanoreceptionen_US
dc.subject.keywordsPrey Detectionen_US
dc.description.acknowledgementThis research is supported by Ministry of Education, Singapore, under its Academic Research Funds Tier 2 MOE2018-T2-2-052 and National Science Foundation award CBET-1805847.en_US
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