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	Provedor de dados ArchiMer (2) Autor Bonnel, Julien (2) Chauvaud, Laurent (2) Jézéquel, Youenn (2) Coston-guarini, Jennifer (1) Palavra-chave Accelerometer (1) Acoustic communication (1) Agonistic encounter (1) Buzzing sound (1) Carapace vibration (1) Male European lobster (1) Passive acoustics (1) Tank (1) Mais... Tipo do documento Text (2) Ano 2020 (2) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Acoustic behaviour of male European lobsters ( Homarus gammarus ) during agonistic encounters ArchiMer Jézéquel, Youenn; Coston-guarini, Jennifer; Chauvaud, Laurent; Bonnel, Julien. Previous studies have demonstrated that male European lobsters (Homarus gammarus) use chemical and visual signals as a means of intraspecific communication during agonistic encounters. In this study, we show that they also produce buzzing sounds during these encounters. This result was missed in earlier studies because low-frequency buzzing sounds are highly attenuated in tanks, and are thus difficult to detect with hydrophones. To address this issue, we designed a behavioural tank experiment using hydrophones, with accelerometers placed on the lobsters to directly detect their carapace vibrations (i.e. the sources of the buzzing sounds). While we found that both dominant and submissive individuals produced carapace vibrations during every agonistic... Tipo: Text Palavras-chave: Passive acoustics; Male European lobster; Agonistic encounter; Accelerometer; Buzzing sound; Carapace vibration; Tank; Acoustic communication. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00614/72565/71516.pdf Spiny lobster sounds can be detectable over kilometres underwater ArchiMer Jézéquel, Youenn; Chauvaud, Laurent; Bonnel, Julien. The detection ranges of broadband sounds produced by marine invertebrates are not known. To address this deficiency, a linear array of hydrophones was built in a shallow water area to experimentally investigate the propagation features of the sounds from various sizes of European spiny lobsters (Palinurus elephas), recorded between 0.5 and 100 m from the animals. The peak-to-peak source levels (SL, measured at one meter from the animals) varied significantly with body size, the largest spiny lobsters producing SL up to 167 dB re 1 µPa2. The sound propagation and its attenuation with the distance were quantified using the array. This permitted estimation of the detection ranges of spiny lobster sounds. Under the high ambient noise conditions recorded in... Tipo: Text Ano: 2020 URL: https://archimer.ifremer.fr/doc/00630/74201/73827.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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