Records of Risso´s dolphin, Grampus griseus, in coastal waters of Argentina.

RICCIALDELLI LUCIANA; MÓNICA A. TORRES; NATALIE P. GOODALL; NATALIA DELLABIANCA ; LIDA E. PIMPER; LAURA M. REYES; ALEJANDRO FERNÁNDEZ-AJÓ; RICARDO BASTIDA

REVISTA DE BIOLOGIA MARINA Y OCEANOGRAFIA

INST OCEANOLOGIA

Lugar: Valparaíso; Año: 2011 vol. 46 p. 463 - 469

0717-3326

We review the records of published and unpublished sightings and strandings for Risso?s dolphin(Grampus griseus) in subantarctic waters of the Southwestern South Atlantic Ocean. Based on 59 sighting (n = 521individuals) and 33 stranding records (n = 88 individuals), we identified three main areas of Risso?s dolphinconcentration in Patagonian waters, which have been observed mostly during the austral summer. We were unableto find published or unpublished reports of Risso?s dolphin in offshore or over deep-water areas in this region.Future studies covering other potential areas of the species? distribution are important to improve the scarceinformation known for this dolphin in this area.