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Aquatic Biology

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Bioacoustic experiment conducted in the Bay of Brest (Brittany, France) with European lobsters Homarus gammarus. Painting: Nathalie Bihan (redrawn from a photo by Erwan Amice)

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.


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