Like other right whale species, the North Pacific right whale reaches about 45 feet in length and weighs as many tons. It is found on both sides of the Pacific Ocean, from the southeastern Bering Sea to the Okhotsk Sea off western Russia. Some estimates put the total population from the western North Pacific in the high hundreds, but the actual population may be much lower. The population in the eastern North Pacific, most likely residing in or migrating through U.S. waters, is suspected to be made up of a small number of individuals. Scientific surveys over the past few years have provided valuable information, including samples for genetic analysis from these populations.
The slow-swimming cetacean was the foundation of early commercial whaling ventures and the target of pelagic whaling fleets and coastal whaling, though the species was reported in decline as early as 1874. By 1937, all right whales became internationally protected. However, wide-scale illegal hunting by Soviet fleets in the 1960's is likely to have devastated populations.
Today, scientists have documented that northern right whales in the Atlantic are experiencing lowered reproductive success, and are threatened by ships that collide with the animals and fishing nets that entangle them. Some of the same threats may be impacting the North Pacific right whale, but virtually no studies exist to evaluate their respective toll on the species.
"There has been a lot of conservation work directed toward the North Atlantic right whale," said Rosenbaum. "And while those efforts should continue and remain of highest priority, the conservation community should also focus attention on the North Pacific species to safeguard remaining populations."
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Contact: Stephen Sautner
ssautner@wcs.org
718-220-3682
Wildlife Conservation Society
14-Nov-2000