Sensors | |
Simultaneous Sampling of Flow and Odorants by Crustaceans can Aid Searches within a Turbulent Plume | |
Swapnil Pravin1  | |
[1] Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22904, USA; E-Mail: | |
关键词: plume; olfaction; turbulence; tracking; crustacean; odorants; | |
DOI : 10.3390/s131216591 | |
来源: mdpi | |
【 摘 要 】
Crustaceans such as crabs, lobsters and crayfish use dispersing odorant molecules to determine the location of predators, prey, potential mates and habitat. Odorant molecules diffuse in turbulent flows and are sensed by the olfactory organs of these animals, often using a flicking motion of their antennules. These antennules contain both chemosensory and mechanosensory sensilla, which enable them to detect both flow and odorants during a flick. To determine how simultaneous flow and odorant sampling can aid in search behavior, a 3-dimensional numerical model for the near-bed flow environment was created. A stream of odorant concentration was released into the flow creating a turbulent plume, and both temporally and spatially fluctuating velocity and odorant concentration were quantified. The plume characteristics show close resemblance to experimental measurements within a large laboratory flume. Results show that mean odorant concentration and it's intermittency, computed as
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190031393ZK.pdf | 1551KB | download |