Balaenoptera musculus ssp. musculus (North Pacific stock) 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Cetartiodactyla Balaenopteridae

Scientific Name: Balaenoptera musculus ssp. musculus (North Pacific stock)
Common Name(s):
English Blue Whale

Assessment Information [top]

Red List Category & Criteria: Lower Risk/conservation dependent ver 2.3
Year Published: 1996
Date Assessed: 1996-08-01
Needs updating
Assessor(s): Cetacean Specialist Group
Extract from Reeves et al. (2003, p. 36): "The North Pacific stock was classified as Lower Risk/Conservation Dependent, mainly because the population was estimated at about 2000 in the early 1990s and evidence suggested an increase off California."

Geographic Range [top]

Range Description:Range "..during the summer in the immediate offshore waters from the Sanriku coast of Honshu, northward and eastward along the Kurilskiye Ostrova (but not into the Sea of Okhotsk) and the southern side of the Aleutian Islands, around the Gulf of Alaska, and southeastward as far as central Baja California. They do not go north of the Aleutian Islands, except rarely in the far southeastern corner of the Bering Sea. In the winter they are found regularly from southern Honshu south to Ogasawara Gunto [=Bonin Islands], Ryukyu Retto, and Taiwan, in the western Pacific, and south at least to Nayarit, Mexico, on the eastern side; there are a few records that season in the tropical mid-ocean waters." (Rice 1998)
Countries occurrence:
Canada (British Columbia); Japan; Korea, Democratic People's Republic of; Korea, Republic of; Mexico (Baja California, Baja California Sur); Russian Federation (Kuril Is.); Taiwan, Province of China; United States (Alaska, Aleutian Is., California, Washington)
FAO Marine Fishing Areas:
Pacific – eastern central; Pacific – northwest; Pacific – northeast; Pacific – western central
Additional data:
Range Map:Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Citation: Cetacean Specialist Group. 1996. Balaenoptera musculus ssp. musculus (North Pacific stock). The IUCN Red List of Threatened Species 1996: e.T2482A9449718. . Downloaded on 23 September 2018.
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