Last edited by Kigataur
Tuesday, July 28, 2020 | History

6 edition of The sei whale found in the catalog.

The sei whale

population biology, ecology & management

by Joseph Horwood

  • 109 Want to read
  • 33 Currently reading

Published by Croom Helm in London, New York .
Written in English

    Subjects:
  • Sei whale.

  • Edition Notes

    StatementJoseph Horwood.
    Classifications
    LC ClassificationsQL737.C424 H67 1987
    The Physical Object
    Pagination375 p. :
    Number of Pages375
    ID Numbers
    Open LibraryOL2384849M
    ISBN 100709947860
    LC Control Number87013727

    The most commonly encountered species on our trips is the Bryde’s whale. Over the 16 years we have been operating we have encountered many other species which include: blue whales, fin whales, humpback whales, sei whales and Southern right whales. Fin and sei whales are slightly more tricky to distinguish. The best way to distinguish them is to recognize that the dorsal fin on a sei whale is taller than on a fin whale. There is also a white coloration pattern forward of the dorsal fin on a fin whale called a .

    The name of the sei whale is derived from a Norwegian name seje for pollack, a fish that is sighted off the coast of Norway every spring. It is usually pronounced "say," although some use the pronunciation "sigh." The sei is a baleen whale and they are usually divided into three families. The sei whale can be found in all ocean basins. It is an oceanic form and is uncommon in shelf seas. Sei whales undertake extensive, seasonal, latitudinal migrations, spending the summer months feeding in the subpolar higher latitudes and returning to the lower latitudes to Cited by:

    Sei Whale Balaenoptera borealis is the third largest animal after the Blue Whale and the Fin Whale. «Sei» is the Norwegian word for pollock Pollachius sp., a North Atlantic marine fish. Sei whales are used to appear off the coast of Norway at the same time as the pollock do, both coming to feed on the plankton. Seasonal cycles and reproduction in sei whales of the Southern Hemisphere. London, New York, Cambridge University Press, (OCoLC) Document Type: Book: All Authors / Contributors: Ray Gambell.


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The sei whale by Joseph Horwood Download PDF EPUB FB2

The sei whale is somewhat more powerfully built than the fin whale and has a streamlined body. The back, the entire caudal peduncle and the flippers are greyish black, whereas the belly is lighter in hue.

Tours – Book now. For a more detailed information see the book. “Philip Hoare’s THE WHALE is everything you want from a book.

It is unpredictable and amusing and informative and original, cavorting between biology, history, travel writing, and memoir with an engaging The sei whale book of the subject’s charisma.

And the book is even handsome.” (Mark Kurlansky, author of SALT and COD)/5(64). Bryde's whale (left) and sei whale (right) seen in our trips 1.

Size - Both adult sei and Bryde's whales can weigh between tons 2. Length- Adult sei whales reach up to approximately metres in length whereas Bryde's whales are generally slightly smaller at up to metres in length.

Appearance. The Sei Whale Introduction The sei whale, Balaenoptera borea-lis Lessonis the third largest member of the family Balaenopteridae, following the blue, B. musculus ; and fin, B. physalus, whales. At maturity, sei whales range from 12 to 18 m in length (Lockyer, ; Martin, ). Their coloration is gray, with a variable white.

Sei Whale: Population Biology Ecology and Management 1st Edition. by J. Horwood (Author) ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. Author: J. Horwood. Established inthe IUCN Red List of Threatened Species has evolved The sei whale book become the world’s most comprehensive information source on the global conservation status of.

The sei whale is one of the fastest whales, reaching speeds of up to 30 miles per hour. Sei whales inhabit all oceans and adjoining seas except in tropical and polar regions. Like other great whales, they prefer to spend the summer feeding in cooler waters before migrating to warmer waters to breed and give birth to their calves.

Sei whale, (Balaenoptera borealis), also called Rudolphi’s rorqual or pollack whale, species of baleen whale capable of short bursts of speed that make it the swiftest of the y attaining a length of about 13–15 metres (43–49 feet), this cetacean is bluish gray or blackish above with paler underparts and a relatively large hook-shaped (falcate) dorsal fin.

Quick facts about this endangered baleen whale. The sei whale (Balaenoptera borealis). Sei whale facts. Sei Whale (Baelaenoptera borealis) The Sei Whale (pronounced “Say”) is an irregular visitor to our area. I say “irregular” because we may go years without seeing one, then dozens may move into the Stellwagen Bank area seemingly overnight.

Sei Whale Statistics Maximum length: m (58ft) males / 20m (66ft) females Adult weight: 33 tonnes Life span: 60 years Sexual maturity: 8 - 11 years Gestation: - 12 months Birth length: m (15ft) Birth weight: - kg ( - lbs) Dive duration: 20 mins Feed on: more varied food than similar whales, mainly krill when in Antarctica, usually only one type of food at.

Sei whale (Balaenoptera borealis) Sei whales are shorter than fin whales and also have a shorter blow. When the whale surfaces their blow hole can be seen at the same time as their dorsal fin.

The dorsal fin of a sei whale is more upright than that of a fin whale. Book. The sei whale (Balaenoptera borealis) is smaller in size than the fin whale (Balaenoptera physalus), and can be distinguished from this similar species because it has symmetrical colouring on the lower parts of its head.

It is also similar to Bryde's whale (Balaenoptera edeni), but has only one ridge on the upper surface of the head, whereas Bryde's whale has three. Differs from the fin whale in the more upward-angled dorsal fin (located farther forward on the body), the lack of asymmetrical lower lip coloration, lack of whitish dorsal chevrons, lack of mixed color baleen, and fewer throat grooves ( vs.

); dorsal fin of sei whale tends to surface simultaneously with the head, rather than later. Rice () separated this species into B. borealis borealis and B. borealis schlegelii Flower, (Northern Sei Whale) (Southern Sei Whale) Subordinate Taxa RankBiological classification: Species.

The sei whale is a typical, sleek rorqual. It is the third longest whale, reaching a maximum length of almost 20 m. More typically it is 15 m, weighing 20 metric tons (Horwood, ). Identification at sea can be difficult. By size alone, adult blue and fin whales are obviously larger and minke whales by: The name “sei whale” is derived from the Norwegian seje, for pollack or coalfish, because the two species used to arrive off Norwegian waters at the same time each year.

In The Book of Whales, Richard Ellis notes that the sei whale has “been named for a fish by the two nations that hunted it most - sejhval by the Norwegians and Iwashi-File Size: 1MB.

Hey Guys, For Science we have to research more about a specific type of endangered animal and I got the Sei Whale. I have gathered all my information and made it into a movie.

I hope you enjoy. 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 whales but larger groups may form at rich feeding grounds. It has very fine grey-black baleen that traps very small particles of : Mammalia.

Reaching speeds up to miles per hour makes the Sei Whale the fast whale in the water. They prefer subtropical to subpolar waters and can be found in all oceans and adjoining seas, except for those in tropical and polar regions. Like all whales, Sei Whales also suffer from commercial hunting and whaling.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle .The “Sei” in “Sei Whale” comes from the Norwegian word for Pollock, a type of fish.

The Norwegians observed that Sei whales and Pollock tended to arrive in the same areas at the same time every year. American naturalist Roy Chapman Andrews compares the Sei Whale to the Cheetah because they can swim very fast for a short distance but.The sei whale is also known as the pollack whale, Rudolphi's rorqual, or Japanese finner.

Behavior. One of the fastest swimmers among the whales, the sei whale is capable of bursting speeds up to 30 mph (48 kph). It feeds on euphausiids, copepods, and small fish, which it strains through the baleen.