Sei whale

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Sei whale[1]
Sei whale mother and calf Christin Khan NOAA.jpg
Sei whale mother and calf
Sei whale size.svg
Size compared to an average human
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: Balaenopteridae
Genus: Balaenoptera
Species:
B. borealis
Binomial name
Balaenoptera borealis
Lesson, 1828
Subspecies
  • B.b.borealis
  • B.b.schlegelii
Cypron-Range Balaenoptera borealis.svg
Sei whale range
Synonyms
  • Balaena rostrata Rudolphi, 1822
  • Balaenoptera laticeps Gray, 1846
  • Sibbaldius laticeps Flower, 1864
  • Physalus laticeps Flower, 1864
  • Rudolphius laticeps Gray, 1868

The sei whale (Balaenoptera borealis) is a dark-gray, stream-lined baleen whale that is found worldwide except in polar waters. It swims in small pods of 3-5 whales but larger groups may form at rich feeding grounds. It has very fine grey-black baleen that traps very small particles of food. It is a rorqual whale (a large baleen whale) that is similar to the Bryde's whales.

Description[change | change source]

The Sei whale is also called the Sardine whale, the Pollack whale, the Coalfish whale, the Japan Finner, and Rudolphi's rorqual. Large numbers of these whales were hunted until recently for their oil and meat. It is the fastest of the great whales and can swim at about 23 mph (20 knots) in short bursts.

Diet[change | change source]

Sei whales are carnivores that filter-feed plankton (tiny crustaceans like krill, copepods, etc.) and small fish from the water.

References[change | change source]

  1. Mead, J.G.; Brownell, R. L. Jr. (2005). "Order Cetacea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 723–743. ISBN 978-0-8018-8221-0. OCLC 62265494.CS1 maint: ref=harv (link)
  2. Reilly, S.B.; Bannister, J.L.; Best, P.B.; Brown, M.; Brownell Jr., R.L.; Butterworth, D.S.; Clapham, P.J.; Cooke, J.; Donovan, G.P.; Urbán, J.; et al. (2008). "Balaenoptera borealis". IUCN Red List of Threatened Species. IUCN. 2008: e.T2475A9445100. doi:10.2305/IUCN.UK.2008.RLTS.T2475A9445100.en.
  3. https://ecos.fws.gov/ecp0/profile/speciesProfile?sId=4753