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The North Pacific right whale (Eubalaena japonica) is a very large, thickset baleen whale species that is extremely rare and endangered. The Northeast Pacific population, which summers in the southeastern Bering Sea and Gulf of Alaska, may have no more than 40 animals.
The North Pacific right whale appears to occur in two populations. The population in the eastern North Pacific/Bering Sea is extremely low, numbering about 30 individuals. [ 42 ] A larger western population of 100–200 appears to be surviving in the Sea of Okhotsk, but very little is known about this population.
Binomial name. Lissodelphis borealis. Peale, 1848 [3] Range map. The northern right whale dolphin (Lissodelphis borealis) is a small, slender species of cetacean found in the cold and temperate waters of the North Pacific Ocean. Lacking a dorsal fin, and appearing superficially porpoise -like, it is one of the two species of right whale dolphin.
Story at a glance The National Oceanic and Atmospheric Administration Fisheries is considering increasing critical habitat in Alaska for the endangered North Pacific right whale. The whale is the ...
List of cetaceans. Cetacea is an infraorder that comprises the 94 species of whales, dolphins, and porpoises. It is divided into toothed whales (Odontoceti) and baleen whales (Mysticeti), which diverged from each other in the Eocene some 50 million years ago (mya). Cetaceans are descended from land-dwelling hoofed mammals, and the now extinct ...
With a population estimated at between 300-350 individuals, [19] the North Atlantic right whale is the most critically endangered great whale. The Northern Pacific right whale is also endangered with only about 500 individuals extant. [16] [17] The Southern right whale (~7500 individuals in 1997) and the Bowhead whale (20,000 to 40,000) have ...
Adult North Atlantic right whales average 13–16 m (43–52 ft) in length and weigh approximately 40,000 to 70,000 kg (44 to 77 short tons), they are slightly smaller on average than the North Pacific species. [16] The largest measured specimens have been 18.5 m (61 ft) long and 106,000 kg (234,000 lb). [17] Females are larger than males.
A North Atlantic right whale recently stirred up excitement when it showed up in Donegal Bay off the northwestern coast of Ireland. It's been more than 100 years since the last positive ...