Echolocation behavior of franciscana dolphins (Pontoporia blainvillei) in the wild.
J Acoust Soc Am
; 131(6): EL448-53, 2012 Jun.
Article
em En
| MEDLINE
| ID: mdl-22713020
Franciscana dolphins are small odontocetes hard to study in the field. In particular, little is known on their echolocation behavior in the wild. In this study we recorded 357 min and analyzed 1019 echolocation signals in the Rio Negro Estuary, Argentina. The clicks had a peak frequency at 139 kHz, and a bandwidth of 19 kHz, ranging from 130 to 149 kHz. This is the first study describing echolocation signals of franciscana dolphins in the wild, showing the presence of narrow-band high frequency signals in these dolphins. Whether they use other vocalizations to communicate or not remains uncertain.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Golfinhos
/
Ecolocação
Limite:
Animals
Idioma:
En
Revista:
J Acoust Soc Am
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Argentina
País de publicação:
Estados Unidos