Getting poster data...
Alvaro Berg Sotoa (1), Helene Marsh (1), Yvette Everingham (2), Joshua N. Smith (3), Guido J. Parra (4), Michael Noad (5) (James Cook University, Townsville, Australia; Murdoch University, Perth, Australia; Flinders University, Adelaide, Australia; University of Queensland, Brisbane, Australia)Australian snubfin and Indo-Pacific humpback dolphins share the coastal waters off the north Queensland coastline. Little is known about their acoustic repertoires. Vocalizations from snubfin and humpback dolphins were recorded in two locations off the Queensland coast to describe their vocalizations and evaluate the acoustic differences between these two species. Principal component analysis of nine acoustic variables was performed and the principal components were supplied to a discriminant function analysis. Using the first two principal components, 96% of humpback dolphin whistles and 78% of snubfin dolphin calls were correctly classified, thus supporting acoustic differences between the vocal repertoires of these two species. The capacity to identify these species using acoustic monitoring techniques has the potential to inform environmental managers about the presence/absence, habitat use and relative abundance for each species.