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It is found in warm and temperate waters in all oceans but not normally in the coastal waters around Northern Ireland. Sei whale definition: a rorqual , Balaenoptera borealis | Meaning, pronunciation, translations and examples Binomial name: Balaenoptera borealis, René Primevère Lesson, 1828. The sei whale is also known as the pollack whale, Rudolphi's rorqual, or Japanese finner. The fastest whales are the Orca (or Killer Whale) and the Pilot Whale. In 2006, a juvenile male, 10m long, swam into Larne Lough, County Antrim and eventually became stranded on … The sei whale is a large, deep-water, baleen whale. The Sei whale obtains food by skimming through the water and catching prey in its baleen plates. Historically, the sei whale population has been seriously depleted due to human capture and harvesting. They have between 318 - 410 baleen plates on each side of the upper jaw. Main ship particulars are length of 87 m and beam of 16 m. Maps below show the following voyage data - Present Location, NExt port, Estimated (ETA) and Prediced Time of arrival … They will twist their body from side to side, skimming to help them with filtering the food supply into the baleens. The stated objectives are to determine the population structure and feeding habits of several whale species, including endangered fin and sei whales, in order to "manage" stocks. The sei whale belongs to the rorqual family, Balaenopteridae. Vessel SEI WHALE is a fishing ship sailing under the flag of Cameroon.Her IMO number is 7703950 and MMSI number is 613003577. Comparison of the filtering ability in sei whale with others revealed the sei whale to be poor in those ability being 1 /5 of the fin whale, and 1 /8 of the bolting silk cloth GG54 (0.33 mm mesh aperture, 46% in porosity). goodplanet.info New research has found southern Australian long-finned pilot whales are able to mimic the calls of its natural predator and food rival - the killer whale, as a possible ploy to outsmart it. It inhabits most oceans and adjoining seas, and prefers deep offshore waters. The fast-swimming sei whale was caught in great numbers in the Antarctic in the 1960s, after the blue, fin and humpback stocks had been overexploited. The sei whale (/ ˈ s eɪ /, [4] [5] Balaenoptera borealis) is a baleen whale, the third-largest rorqual after the blue whale and the fin whale. Behaviour Sei Whales are consistent about staying at the water’s surface and have a rather regular dive sequence. There are two types of Sei Whale; the Northern Sei Whale and, Southern Sei Whale. The fastest of the great whales is the Sei, which reaches 23 miles (or 37 kilometres) per hour. BLUE, FIN AND SEI WHALE RECOVERY PLAN . Sei whale. This is usually done in order to catch prey. Adult Sei Whales measure, on average, between 12 and 16 metres long, which is equivalent to 39.5 to 52.5 feet. Order: Cetacea SubOrder: Mysticeti Family: Balaenopteridae Genus: Balaenoptera Species: Borealis. Physical Description Sei whales are very similar in external appearance to fin and Bryde’s whales, both of which also have a prominent falcate (curved and tapering to a point; sickle-shaped)dorsal fin. It feeds on euphausiids, copepods, and small fish, which it strains through the baleen. Sei whales belong to the Mammalian Order Cetacea, in the suborder Mysticeti. [7] It avoids polar and tropical waters and semienclosed bodies of water. It swims in small pods of 3-5 whales but larger groups may form at rich feeding grounds. SEI WHALE Current Position Where is the current position of SEI WHALE presently? They have 35 - 60 bristles per centimetre whereas all other rorquals have fewer than 35. The color of the sei whale is bluish grayish.There are more males because the females do not tend to reproduce . Falklands Conservation has carried out sei whale field research since 2017, aiming to document their distribution, ecology and population structure in order to implement evidence-based conservation and management. The blue whale (Balaenoptera musculus) is listed as endangered, and fin (Balaenoptera physalus) and sei (Balaenoptera borealis) whales are listed as vulnerable under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act).This plan outlines the measures necessary to ensure recovery of the Australian … Sei whale images (Balaenoptera borealis) - stock photos, illustrations & facts on this large baleen whale endangered due to commercial whaling We have the rare underwater images of this endangered sei whale, created by the world’s renowned professional wildlife photographers. Japan … 2005 - 2010 . The maximum-likelihood genealogy (Fig. All baleen whales belong to the suborder Mysticeti, which is Latin for "mustached whales". In both sei and Bryde's whales, the dorsal fin rises at a steep angle from the back. The sei whale, one of the fastest marine mammals in the world, is part of the same family as blue and fin whales. It has very fine grey-black baleen that traps very small particles of food. Humpbacks, minkes, seis, and blue whales are only present seasonally when they drop down from the north Usually, the whale will blow once … It weighs at least 20 tons and eats 900 kilograms of food daily. Lesson, 1828 - Sei whale Distinctive Characteristics Sei whales can be confused with fin and Bryde's whales, both of which also have a prominent falcate dorsal fin.All 3 have typical rorqual body shapes. It is a member of the rorqual family with the characteristic ventral pleats of skin under the eye and the relatively flat and broad jaw. Bryde’s and sperm whales, common and bottlenose dolphins, and orcas are seen throughout the year in the Galapagos. A S e i whale feeding at the surface. Behavior. This website will detail the Southern Sei whale as a species and discuss why it became endangered. The sei whale is the third largest roqual after the blue whale and the fin whale. Cetaceans enjoy the Galapagos Islands’ western waters—in particular the region between Isabela and Fernandina Islands due to the Cromwell Current’s upwelling. The head can be between one-fifth and one-quarter of its body length, which increases with age. There will be a considerable amount of water that is taken in at the same time. Andrews, writing in 1916, likened the sei whale to the cheetah in that respect - they may in fact be the fastest of all cetaceans. The Sei whale (Balaenoptera borealis) is a dark-gray, stream-lined baleen whale that is found worldwide except in polar waters. 4) estimated from the aligned sequences was comprised of two clades with sei whale mtDNA sequences supported by a bootstrap value at 90%. One of the fastest swimmers among the whales, the sei whale is capable of bursting speeds up to 30 mph (48 kph). Fast swimmers in bursts - R.C. The sei whale is slender bodied and can reach up to 16 m in length. The population of the sei whale is 80,000. An average Sei whale eats about 900 kilograms of copepods, amphipods, euphausiids and small fish every day. Balaenoptera borealis is a baleen whale and can be recognised as such by the plates of baleen (rather than teeth) suspended from the upper jaw and the two blowholes on the upper body. All three have typical rorqual body shapes. In order to get their prey, the Sei Whale will swim rapidly through the prey. The final alignment of sei, Bryde’s and fin whale mtDNA control region sequences yielded a consensus sequence of 491 nucleotides (including alignment gaps). Sei whales are almost exclusively plankton feeders. The sei whale ( or ), Balaenoptera borealis, is a baleen whale, the fourth-largest rorqual after the blue whale, the fin whale and the humpback whale. The species was heavily exploited during the whaling era, resulting in its current Endangered global status. Rice (1998:75-76) separated this species into B. borealis borealis and B. borealis schlegelii Flower, 1865 (Northern Sei Whale) (Southern Sei Whale) Subordinate Taxa Rank In the order Cetacea, Makino (1948) first reported a study on the chromo­ Sei whales tend to travel in groups of two to five individuals, although larger aggregations occur periodically. SEI Mother and Calf Whale Wideruledlinepaper Composition Book: Whale Fans, Elementary Students, Elderly Notebooks, Visual Impaired, Large Handwriting (Paperback) by Christina Peterson and a great selection of related books, art and collectibles available now at AbeBooks.com. The species was heavily exploited during the whaling era, resulting in its current Endangered global status. The Sei Whale is a member Balaenopteridae and they are third biggest member, the first is Blue Whale, which is up to 180 tonnes, (200 tons) and the second member is Fin Whale which is over 70 tonnes (77 tons), the Sei Whale is between 12 and 15 meters (40~50ft) and weighs 22~33tons. Sei whale (Balaenoptera borealis) Baleen whale. [6] It inhabits most oceans and adjoining seas, and prefers deep offshore waters. Sei Whale Feeding. These whales feed near the surface of the ocean, swimming on their sides through swarms of prey. When necessary, these species will swim at speeds of more than 48 kilometres (or 30 miles) per hour. KARYOTYPE OF A SEI WHALE TOSHIO KASUYA The chromosomes of the Mammalia have been studied for a long period, and many species of mammals except those belonging to the Lemures, Proboscidea, Hy­ racoidea and Sirenia were analyzed their karyotypes (Matthey, 1949). Order : Cetacea (suborder) -Mysticeti Shape : The Sei Whale has a slender head. 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