Antennule morphology and flicking kinematics facilitate odor sampling by the spiny lobster, Panulirus argus

The Journal of Experimental Biology
Matthew A ReidenbachM A R Koehl

Abstract

Many arthropod olfactory appendages bear arrays of hair-like chemosensory sensillae. Odor molecules in the fluid around the animal must reach the surfaces of those hairs to be sensed. We used the lateral flagellum of the olfactory antennule of the spiny lobster, Panulirus argus, as a system to study how the morphology, orientation, and motion of sensilla-bearing appendages affects the small-scale water flow within the hair array. We tested whether antennule flicking enables lobsters to take discrete odor samples by measuring flow fields through an aesthetasc array on a dynamically scaled physical model of a P. argus antennule. Particle image velocimetry revealed that the magnitude and duration of velocity through the aesthetasc array during the rapid flick downstroke is just enough to allow complete replacement of the fluid entrained within the hair array. The complex zig-zag arrangement of aesthetascs hairs, combined with their offset orientation along the antennule, generates flow velocities that are uniform along the length of the hairs. This increases fluid exchange during the flick and reduces the boundary layer thickness surrounding the hairs. The return stroke occurs at about a quarter the speed of the flick, but the vel...Continue Reading

References

Jul 27, 2005·The Journal of Experimental Biology·Meg E Johnson, Jelle Atema
Sep 20, 2005·The Journal of Experimental Biology·DeForest Mellon

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Citations

Jun 7, 2012·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Swapnil PravinMatthew A Reidenbach
Sep 23, 2011·Integrative and Comparative Biology·M A R KoehlKaren Yang
Jan 15, 2016·Journal of the Royal Society, Interface·Lindsay D Waldrop, M A R Koehl
Dec 16, 2016·Journal of the Royal Society, Interface·Lindsay D WaldropShilpa Khatri
Jun 1, 2018·Journal of the Royal Society, Interface·Madeleine SealeNaomi Nakayama
Dec 14, 2011·Bioinspiration & Biomimetics·R SchuechM A R Koehl
Apr 25, 2015·Bioinspiration & Biomimetics·Swapnil PravinMatthew A Reidenbach
Jun 4, 2020·Journal of the Royal Society, Interface·Mourad Jaffar-BandjeeJérôme Casas
Jun 4, 2020·Integrative and Comparative Biology·Mourad Jaffar-BandjeeJérôme Casas
Sep 23, 2018·Journal of Chemical Ecology·Lindsay D WaldropShilpa Khatri
Jan 15, 2021·The Journal of Experimental Biology·Matthew WalkerRudi Schuech
Oct 24, 2020·Scientific Reports·Philip M GravineseSamantha Fisher
Apr 13, 2012·The Journal of Experimental Biology·DeForest Mellon, Omer A Abdul Hamid
Aug 26, 2011·The Journal of Experimental Biology·Matthew A Reidenbach, M A R Koehl
Nov 12, 2021·The Journal of Experimental Biology·Paolo SolariRoberto Crnjar

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