Primeiros registros dos golfinhos Stenella coeruleoalba, Stenella cfr. plagiodon e Steno bredanensis para o sul do Brasil, com notas osteológicas

Ecological niche modeling of Stenella dolphins (Cetartiodactyla: Delphinidae) in the southwestern Atlantic Ocean

“…Two unconfirmed records in Brazilian coast were not included (Maia-Nogueira et al, 2001;Pinedo and Castello, 1980). The limited data result from observations and incidental captures recorded mainly in cold and shallow waters off Argentina and southern Brazil (Bastida et al, 2001;Moreno et al, 2005; E. Secchi and J.…”

“…The resulting model, as expected with such limited amount of records, simply indicates that the species occurs in waters with those features. Strandings are also more frequent in the southernmost areas of the SWA (Uruguay and Argentina: Bastida et al, 2001;Brownell and Praderi, 1976;Castro et al, 2011;Ximénez et al, 1972;Ximénez and Praderi, 1992;southern Brazil: Ott and Danilewicz, 1996;Pinedo and Castello, 1980). Although strandings were reported in the northeastern and southeastern Brazilian coast (Lucena et al, 1998 that this was the least known species of Stenella in the SWA; since their study, few records were recorded and added to the database, which strongly suggests that striped dolphin is rare in this region.…”

Distribution and habitat characteristics of dolphins of the genus Stenella (Cetacea: Delphinidae) in the southwest Atlantic Ocean

“…6). Most of the sightings and incidental captures were recorded in relatively shallow waters (ranging from 30 to 100 m) in southern Brazil and Argentina (Pinedo & Castello 1980, Bastida et al 2001. Sightings of small groups (1 to 4 individuals) were recorded only in cold waters off Argentina (Bastida et al 2001).…”

“…Only 5 records of Stenella attenuata have been reported south of 25°S to date (Brownell & Praderi 1976, Pinedo & Castello 1980, Praderi 1980, Perrin et al 1987, Cremer & Simões-Lopes 1997, Petry & Fonseca 2001. A review of these records showed that only an individual stranded in Uruguay (MNHNM 2694) (Praderi 1980, Ximenez & Praderi 1992) was confirmed as S. attenuata.…”

“…The specimen MCN 0026 stranded in Torres (29°19' S, 049°42' W), Rio Grande do Sul, in February 1956, was originally reported as Stenella cf. plagiodon (Pinedo & Castello 1980) and was subsequently identified as S. attenuata (Perrin et al 1987). This individual was quoted as a pantropical spotted dolphin by several authors (e.g.…”