Sei Whale
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.
Sei Whale
Relatives in same Genus
Northern Minke Whale (B. acutorostrata)
Bryde's Whale (B. edeni)
Blue Whale (B. musculus)
Fin Whale (B. physalus) ...
Sei whale, Balaenoptera borealis
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Where are they found? Atlantic Ocean, Pacific Ocean ...
Sei whales tend to swim in pods of 3-5 animals, and rarely dive deeper than 300 m. Although little is known about how this species communicates, it has been found that low-frequency pulses are common.
Sei Whale
The Sei whale closely resembles the Bryde's whale in both size and appearance. From a distance it is almost impossible to tell them apart. This whale grows to a length of 12-17m (36-51ft) and weighs 20-30 tonnes.
Sei whale
Balaenoptera borealis
The sei whale's streamlined shape makes it a very fast swimmer, reaching speeds of 50 km/h (26 mph).
Subspecies
Possibly two (Northern and Southern).
Sei Whale
Fast cetacean victim of "scientific" whaling?
Common Name: Sei whale, coalfish whale, pollack whale, Rudophi's rorqual; Baleinoptère de Rudolphi, rorqual boréal, rorqual de Rudolphi, rorqual sei (Fr); Ballena boba, ...
Sei Whale
Order: Cetacea
Family: Balaenopteridae
Balaenoptera borealis - insets: view of head from top, spray pattern
Click to enlarge. (41 kb) ...
Sei whale (Balaenoptera borealis)
Northern royal albatross (Diomedea sanfordi)
Hourglass dolphin (Lagenorhynchus cruciger)
Sperm whale (Physeter macrocephalus)
Cory's shearwater (Calonectris diomedea)
Southern fulmar (Fulmarus glacialoides) ...
Sei Whale*
Balaenoptera borealis
Stranded in Barnstable (1910 & 1974), Essex (2007), and Plymouth (1948) counties. Listed as "Endangered".
The sei whale has beleen plates as shown above. Watch video of sei whale feeding on a large school of fish.
Watch more cetacean videos.
Habitat ...
³ The Sei whale is not included in the species accounts because there are no confirmed records of this species from the Texas coast. However, it is possible that this species could occur in the region and has therefore been included in this key.
This is the period when populations of Humpback, Blue, Fin and Sei whales, among others, where decimated. The numbers of these four species dropped precipitously from 1900 to 1980.
Sei Whale, Balaenoptera borealis
Bryde's Whale, Balaenoptera brydei
Eden's Whale Balaenoptera edeni - Rice lists this as a separate species, MSW3 does not ...
Numerous baleen whales are classified as endangered, some of which include blue whales, North Atlantic right whales, North Pacific right whales, fin whales and sei whales.
Current threats may include mortality from collisions with shipping and entanglement in nets, competition with the sei whale for food, and exclusion from calving areas due to ship and boat traffic.
Bryde's whale is often confused with the Sei whale; however, the Bryde's whale has three parallel ridges in the area between the blowholes and the tip of the head. The flippers are small compared to body size.
Whales include the Blue whale, Fin whale, Sei whale, Southern right whale, Humpback whale, Minke whale, Sperm whale, Killer whale or Orca, Southern bottlenose whale, Blackfish, Dusky dolphin, Cruciger dolphin, and Spectacled porpoise.
These whales can reach speeds of 30 miles per hour although the Dall's Porpoise and the Sei Whale may be even faster.
Humpback Whales migrate through in Nov, Feb-March and July. Other whales, such as
Blue, Sperm, Bryde´s, Fin and Sei Whale, as well as Risso´s Dolphin, Burmeister´s Porpoise and Orca can be seen any time of year. Whale and dolphin guarantee.
body coloration, symmetrical lower lip coloration, broader U-shaped rather than V-shaped snout, baleen that is black rather than gray to white, and the smaller dorsal fin that is located farther toward the posterior. Differs from the sei whale in the ...
The family includes the humpback whale, the sei whale, the minke whale, the Bryde's whale, the fin whale (or common rorqual), and the blue whale, which can grow to a length of 100 ft (30 m) and a weight of 150 tons.
 See also: Whale, Fin Whale, Blue Whale, Rorqual, Dolphin
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