126
1987; Oswald et al. 2003, 2007; Rankin et al. 2015), preliminary acoustic behavior
description (Rankin et al. 2008a), including possible eavesdropping recording during synchronized swimming (Gotz et al. 2006), acoustic monitoring (Rankin et al.
2008b), and species identification (Oswald et al. 2003, 2007).
In Brazil, the rough-toothed dolphin acoustic signals have been recorded on the
southeastern (Guanabara Bay, Rio de Janeiro state), northeastern (Abrolhos Bank)
coast (Bezerra Filho 2012; Corrêa 2012; Lima et al. 2012) and, in a most recent
effort, on the southern (Rio Grande do Sul state) coast (Amorim et al. submitted).
Except for Bezerra Filho (2012), the others have described spectral and temporal
whistles parameters for this species (Amorim et al. submitted; Corrêa 2012; Lima
et al. 2012).
5.4.3 Spinner Dolphin (Stenella longirostris) and Atlantic
Spotted Dolphin (Stenella frontalis)
Spinner dolphin is a small delphinidae, which can reach up to 2.30 m long and is
considered to have a pantropical distribution. This species has been described to
occur beyond the outer continental shelf in tropical waters of the Southwestern
Atlantic Ocean and near oceanic islands (Bastida et al. 2007; Danilewicz et al. 2013;
Amaral et al. 2015), however, a few sightings exist south of 31°S, in spring (Di
Tullio et al. 2016) (Fig. 5.12).
The acoustic investigation of the whistles emitted by the spinner dolphin already
presented some geographical variation (e.g. Bazúa-Durán and Au 2002; 2004;
Moron et al. 2015; Bonato et al. 2015). However, so far the geographical isolation
indicates no relation to whether spinner dolphin whistles. Thus is necessary to
Fig. 5.12 Spinner dolphin photographed off the Brazilian coast (Reproduced with permission of
Pedro Fruet)
A. Andriolo et al.
1987; Oswald et al. 2003, 2007; Rankin et al. 2015), preliminary acoustic behavior
description (Rankin et al. 2008a), including possible eavesdropping recording during synchronized swimming (Gotz et al. 2006), acoustic monitoring (Rankin et al.
2008b), and species identification (Oswald et al. 2003, 2007).
In Brazil, the rough-toothed dolphin acoustic signals have been recorded on the
southeastern (Guanabara Bay, Rio de Janeiro state), northeastern (Abrolhos Bank)
coast (Bezerra Filho 2012; Corrêa 2012; Lima et al. 2012) and, in a most recent
effort, on the southern (Rio Grande do Sul state) coast (Amorim et al. submitted).
Except for Bezerra Filho (2012), the others have described spectral and temporal
whistles parameters for this species (Amorim et al. submitted; Corrêa 2012; Lima
et al. 2012).
5.4.3 Spinner Dolphin (Stenella longirostris) and Atlantic
Spotted Dolphin (Stenella frontalis)
Spinner dolphin is a small delphinidae, which can reach up to 2.30 m long and is
considered to have a pantropical distribution. This species has been described to
occur beyond the outer continental shelf in tropical waters of the Southwestern
Atlantic Ocean and near oceanic islands (Bastida et al. 2007; Danilewicz et al. 2013;
Amaral et al. 2015), however, a few sightings exist south of 31°S, in spring (Di
Tullio et al. 2016) (Fig. 5.12).
The acoustic investigation of the whistles emitted by the spinner dolphin already
presented some geographical variation (e.g. Bazúa-Durán and Au 2002; 2004;
Moron et al. 2015; Bonato et al. 2015). However, so far the geographical isolation
indicates no relation to whether spinner dolphin whistles. Thus is necessary to
Fig. 5.12 Spinner dolphin photographed off the Brazilian coast (Reproduced with permission of
Pedro Fruet)
A. Andriolo et al.