Blainville's beaked whales' distribution is considered the most extensive of the Mesoplodon genus. They have a cosmopolitan distribution throughout the world's oceans and range from the Mediterranean, England, Iceland, Nova Scotia (Canada), Brazil and South Africa in the Atlantic; to California, Chile, Japan, New Zealand and Australia in the Pacific. This species is commonly sighted in the northeastern Bahamas, Caribbean Sea, Gulf of Mexico, Hawaiian Islands, Sea of Japan, and the Society Islands of the South Pacific. During studies, individuals have been identified and resighted in certain geographic areas that may have resident populations. In productive waters, adult animals are more commonly found in waters over the continental shelf and submarine canyons, and sub-adult animals are found both inshore and offshore. Their distribution may vary depending on the movements of warm-water currents; however, there are no known seasonal movements or migrations.
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