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