Berardius arnuxii has a circumpolar distribution in the southern hemisphere extending from the Antarctic coastline and ice edge (78° S) northward to about 34° S. Most records of sightings and strandings are south of 40° S, but some records occur farther north. A stranded individual was found as far north as 23° S off the coast of Brazil. It is assumed that B. arnuxii mostly occupies deeper, open ocean waters like its northern sister species Berardius bairdii, but there have been numerous sightings of B. arnuxii in shallower coastal waters (less than 500 m depth), and in close proximity to, as well as under, sea ice. Most strandings have occurred around New Zealand.
Biogeographic Regions: antarctica (Native ); atlantic ocean (Native ); pacific ocean (Native )
- Folkens, P., R. Reeves, B. Stewart, P. Clapham, J. Powell. 2002. Guide to Marine Mammals of the World. New York: Alfred A. Knopf Inc..
- Martuscelli, P., M. Milanelo, F. Olmos. 2003. First record of Arnoux's beaked whale (Berardius arnuxii) and Southern Right-whale dolphin (Lissodelphis peronii) from Brazil. Mammalia, 59 (2): 274-275.
- Ponganis, P., G. Kooyman, M. Castellini. 1995. Multiple sightings of Arnoux's beaked whales along the Victoria land coast. Marine Mammal Science, 11 (2): 247-250.
- Balcomb III, K. 1989. Baird's Beaked Whale Berardius bairdii Stejneger, 1883: Arnoux's Beaked Whale Berardius arnuxii Duvernory, 1851. Pp. 261-288 in S Ridgeway, R Harrison, eds. Handbook of Marine Mammals Volume 4: River Dolphins and the Larger Toothed Whales, Vol. 4. London: Academic Press.
- Hobson, R., A. Martin. 1996. Behavior and dive times of Arnoux's beaked whales, Berardius arnuxii, at narrow leads in fast ice. Canadian Jounal of Zoology, 74: 388-393.
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