Integrative bioacoustics discrimination of eight delphinid species in the western South Atlantic Ocean.

ABSTRACT: This study presents an integrative bioacoustics approach to discriminate eight species of odontocetes found on the outer continental shelf and slope of the western South Atlantic Ocean. Spinner, Atlantic spotted, rough-toothed, Risso's, bottlenose, short-beaked common dolphins, killer and long-finned pilot whales were visually confirmed during recordings with a 3-element omnidirectional hydrophone array. Spectral and time parameters of whistles and echolocation clicks were used in a discriminant function analysis and a classification tree model. As a first step, whistles and clicks were analysed separately; a further analysis consisted of both vocalisations jointly classified. All species showed species-specific properties in their vocalisations. Whistles had greater misclassification rate

SUBMITTER: Simoes Amorim TO 

PROVIDER: S-EPMC6553770 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature