Distribution
The Northern Right Whale Dolphin is widely distributed in the temperate North Pacific in a band running from Kamchatka and mainland Japan in the west to British Columbia down to the Baja California peninsula in the east. It is not known with certainty if they follow a migratory pattern. However, individuals have been observed close to the Californian shore following their main food source, squid, in winter and spring. Such sightings have not been recorded in summer. Otherwise these dolphins are pelagic. No global population estimates exist. There are an estimated 14,000 individuals close to the North American shoreline.
The Southern Right Whale Dolphin has a circumpolar distribution running from about 40° to 55°. They are sighted in the Tasman Sea in particular.
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