Phys. Rev. Lett. 103, 078102 (2009) [4 pages]Wake Tracking and the Detection of Vortex Rings by the Canal Lateral Line of FishReceived 26 June 2008; published 13 August 2009 Research on the lateral line of fish has mainly focused on the detection of oscillating objects. Yet many fish are able to track vortex wakes that arise from other fish. It is not yet known what the sensory input from a wake looks like and how fish can extract relevant information from it. We present a mathematical model to determine how vortices stimulate the canal lateral line and verify it by neuronal recordings. We also show how the information about the orientation of a vortex ring is captured by the lateral-line sensors so as to enable fish to follow a vortex street. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.078102
DOI:
10.1103/PhysRevLett.103.078102
PACS:
87.19.ls, 47.32.ck, 87.19.lt
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