Balaenoptera bonaerensis occurs in polar to tropical waters of the southern hemisphere. It occurs in large numbers south of 60º S, throughout the Antarctic. The distribution is more difficult to assess north of the Antarctic because of its co-occurrence with Balaenoptera acutorostrata. As a result, the boundaries of the species’ winter distributions remain largely undefined. Balaenoptera bonaerensis is observed off the coast of Brazil and South Africa and there have been occasional sightings in Peru. An unknown proportion of the species remains in Antarctic waters during the winter.
Biogeographic Regions: antarctica (Native ); indian ocean (Native ); atlantic ocean (Native ); pacific ocean (Native )
- Mead, J., R. Brownell Jr. 2005. Order Cetacea. Pp. 2142 in D Wilson, D Reeder, eds. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd Ed.). Baltimore: John Hopkins University Press.
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