Echolocation click source parameters of Australian snubfin dolphins (Orcaella heinsohni)

dc.contributor.author de Freitas, Mafalda
dc.contributor.author Smith, Joshua N.
dc.contributor.author Jensen, Frants H.
dc.contributor.author Beedholm, Kristian
dc.contributor.author Madsen, Peter T.
dc.date.accessioned 2018-07-25T18:28:19Z
dc.date.available 2018-07-25T18:28:19Z
dc.date.issued 2018-04-30
dc.description Author Posting. © Acoustical Society of America, 2018. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 143 (2018): 2564, doi: 10.1121/1.5034174. en_US
dc.description.abstract The Australian snubfin dolphin (Orcaella heinsohni) is endemic to Australian waters, yet little is known about its abundance and habitat use. To investigate the feasibility of Passive Acoustic Monitoring for snubfin dolphins, biosonar clicks were recorded in Cygnet Bay, Australia, using a four-element hydrophone array. Clicks had a mean source level of 200 ± 5 dB re 1 μPa pp, transmission directivity index of 24 dB, mean centroid frequency of 98 ± 9 kHz, and a root-mean-square bandwidth of 31 ± 3 kHz. Such properties lend themselves to passive acoustic monitoring, but are comparable to similarly-sized delphinids, thus requiring additional cues to discriminate between snubfins and sympatric species. en_US
dc.description.sponsorship We thank the Fitzroy Basin Association for funding fieldwork in Gladstone May 2013 as well as the Australian Marine Mammal Centre who funded J.N.S. with the Bill Dawbin Fellowship and provided fieldwork funding. P.T.M. was funded by a Sir Walter Murdoch Honorary Professorship from Murdoch University and frame grants from FNU. F.H.J. was supported by the office of naval research (N00014-1410410) and an AIAS-COFUND fellowship from Aarhus Institute of Advanced Studies, Aarhus University, under EU's FP7 programme (Agreement No. 609033). en_US
dc.identifier.citation Journal of the Acoustical Society of America 143 (2018): 2564 en_US
dc.identifier.doi 10.1121/1.5034174
dc.identifier.uri https://hdl.handle.net/1912/10497
dc.language.iso en_US en_US
dc.publisher Acoustical Society of America en_US
dc.relation.uri https://doi.org/10.1121/1.5034174
dc.title Echolocation click source parameters of Australian snubfin dolphins (Orcaella heinsohni) en_US
dc.type Article en_US
dspace.entity.type Publication
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