Séminaire scientifique | Etude acoustique des chants de baleine à bosse
Jenny Allen de l’Université du Queensland
Doctorante de Claire Garrigue (IRD/ENTROPIE)
Dans le cadre de sa thèse sur les baleines à bosse sous la direction de Claire Garrigue (IRD / ENTROPIE), Jenny Allen de l’Université du Queensland viendra en mission en Nouvelle-Calédonie pour récupérer une bouée acoustique. Ci-dessous le résumé en anglais de ses travaux
séminaire en anglais :
Humpback whales sing one of the most complex songs in the animal kingdom, with each population singing its own unique song. In the South Pacific, this song moves from west to east across the various humpback populations with a delay of about one year between each population. This study focuses on songs sung in the neighboring populations of east Australia and New Caledonia. Acoustic recorders were placed off the southern coast of Ile Quen in New Caledonia from 6 July to 20 September in 2014 and were placed again on 12 July of 2015 for retrieval in mid-September. This talk will discuss when and how often song can be heard over the course of the humpback whale season, as well as when the singing is most prominent in the surrounding area based on the 2014 recordings. A preliminary comparison will also be made between the 2014 song of New Caledonia and the 2013 song of east Australia. Ultimately this data will be compared with recordings made in east Australia for 2013 and 2014 in order to examine how the pattern of the song changes as it moves from one population to another.
