Towards understanding the ontogeny of echolocation in franciscana dolphins (Pontoporia blainvillei)

Echolocation and burst clicks from franciscana dolphins (Pontoporia blainvillei) on the coast of Uruguay

“…Busnel et al (1974), recording in the wild, found clicks with a range of 14-23 kHz and interclick intervals between 19 and 228 ms. However, our data differ in Melcon et al (2012Melcon et al ( , 2016. Captive adult click trains had a mean frequency of 130 kHz and a bandwidth of 20 kHz (Von Fersen et al 1997) and wild ones had a mean peak frequency of 139 kHz and an interclick interval of 33 AE 4 ms (ranging between 14 and 43 ms).…”

“…Low‐frequency clicks in this study were similar to those described by Tellechea and Norbis () and the low‐frequency component registered by Melcon et al . (). Our recording sampling rate was limited and may have cut off spectral content at frequencies beyond 96 kHz.…”

“…Recently, Melcon et al . (, ) recorded clicks in the wild, and Tellechea and Norbis () recorded clicks from a pair of 2‐wk‐old dolphins in captivity.…”

“…() and Melcon et al . (, ). Captive adult click trains had a mean frequency of 130 kHz and a bandwidth of 20 kHz (Von Fersen et al .…”

“…Busnel et al (1974) obtained the first clicks in the wild with limited equipment, and Von Fersen et al (1997) recorded clicks from a captive individual. Recently, Melcon et al (2012Melcon et al ( , 2016 recorded clicks in the wild, and Tellechea and Norbis (2014) recorded clicks from a pair of 2-wk-old dolphins in captivity.…”