Burmeister's porpoises usually inhabit shallow waters of 150 meters or less in depth and can often be seen in rivers and estuaries. Because the Atlantic Ocean has a wider continential shelf than the Pacific, it might provide a more preferred habitat. However, the Pacific coast population is larger. This discrepancy may exist because the Burmeister's porpoises must compete with other more dominant coastal cetaceans on the Atlantic Coast, including Sotalia fluviatilis and Pontoporia blainvillei. In contrast, Burmeister's porpoises are very successful on the eastern Pacific coast, where they are the main cetacean species in this area.
Aquatic Biomes: coastal