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Arthropods, 2020, 9(2): 27-31
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Article

Acoustic monitoring of swimming motions in the slipper lobster Scyllarides acquinoctialis (Lund, 1793)

John A. Fornshell
U.S. National Museum of Natural History, Department of Invertebrate Zoology, Smithsonian Institution, Washington DC, USA

Received 9 January 2020;Accepted 15 February 2020;Published 1 June 2020
IAEES

Abstract
Members of the Malacostraca employ an escape swimming mode called a tail-flip. In this maneuver the uropods and telson are rapidly brought forward until they contact the ventral surface of the abdomen. This movement is the result of stimulation of the ventral cord giant fiber. When swimming at or near the surface the slipper lobster Scyllarides acquinoctialis produces a distinct acoustic signature with an average acoustic pulse duration of 82 milliseconds and peak amplitude between 0.1 kHz and 6.0 kHz. The acoustic signature of members of the Malacostraca can be exploited to passively monitor swimming motions in the marine environment.

Keywords bioacoustics;passive acoustic monitoring; Scyllarides acquinoctialis;tail-flip.

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