Detailed Comparison of Acoustic Signals from Rehabilitated and Wild Franciscanas (<i>Pontoporia blainvillei</i>) Dolphins.

ABSTRACT: The franciscana dolphin is a small, vulnerable species often caught in artisanal gillnets. This study aims to provide a comprehensive assessment of their acoustic capabilities by using advanced equipment to collect a large dataset of wideband, continuous recordings. We examined the detailed acoustic signals of franciscana dolphins, comparing the sounds from rehabilitated dolphins in captivity with those of wild dolphins near fishing nets. Significant differences in acoustic characteristics were found between neonates and older dolphins, with juvenile and wild dolphins showing similar features. For the first time, repetition patterns in click production were identified, highlighting the importance of understanding the context of these sounds in regards to feeding and communication. This stu

SUBMITTER: Giardino GV 

PROVIDER: S-EPMC11350683 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature