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Jézéquel Y, Bonnel J, Coston-Guarini J, Guarini JM, Chauvaud L
Sound characterization of the European lobster Homarus gammarus in tanks
The first step prior to conducting in situ bioacoustic studies is to associate specific behaviours with quantified, species-specific sounds in experimental tanks. To do so, the effects of tank reverberation must be characterized to understand its impacts on the recorded sounds. Insects are known to produce a myriad of sounds, but it is less intuitive to think that marine crustaceans are also soniferous. In a bioacoustic study of the European lobster Homarus gammarus, Jézéquel and colleagues describe how they handled the problem of reverberation. European lobster produced low-frequency sounds, analogous to the American lobster H. americanus, when handled and broadband pulses during feeding. Jézéquel and colleagues then demonstrated that these 2 sound types were both impacted, but differently, by tank reverberation.