Marine Mammal Science 16(4): 699-727. Fin whales are a rorqual, meaning they have a pleated throat. Mating takes place in the northern hemisphere between November and January, and the southern hemisphere between June to September. Bowhead whale. Lockyer. It is gray on the upper surface and white on the underside. In: Marine Mammals of the World. They remain with their mothers for about 6–7 months. Fin whale – Balaenoptera physalus. Often, seemingly minor features provide critical evidence to link animals that are highly … The fin whale is designated as Threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Their gestation is between 11-12 months, after which the calves are weaned at 6-7 months. Gervais' beaked wha... Gray whale. Fin whales have an extremely wide distribution, being found in all of the major seas and oceans of the world, although are more common in the cooler, temperate waters and avoid both the warm tropics and polar regions. This species is highly migratory: they usually live in colder feeding water during spring and early summer, and in autumn and winter they go back to warmer waters to breed. Fin whales can expand their mouths and their throats while feeding due to the 100 or so pleats that go from the end of their bodies right to their mouths. Fin whales can live a long time Fin whales can live for a really long time. Between 1999 and 2004, at least 6 fin whales were hit and killed around Canadian Pacific waters. They are named after the distinct shape of their heads. After an 11-11.5-month gestation period, one calf is born. Little is known about the breeding behaviours and areas of the fin whale. Scientific Name: Orcinus orca. Northern hemisphere fin whales mate from December through to February. It has two subspecies: the northern fin whale, which inhabits the North Atlantic; and the southern fin whale, which lives in the Southern Ocean. Sperm whales live about 75 years. The fin whale, like other baleen whales, strains its food from the water through baleen plates. Data on fin whale size and growth has mostly been compiled through whaling records. Gregr, E.J.,L. Canadian Journal of Fisheries and Aquatic Sciences 58(7):1265-1285. Trites. Fin whales, like other large whales, are threatened by changes to the environment, including habitat loss, climate change and toxins. Their massive bow-shaped heads are used … Relatively little is known about their life history, but it is believed that they live for over 90 years and reach sexual maturity at about 15-30 years of age. Antarctic Minke Wha... Baird's beaked whal... Blainville's Beaked... Blue whale. However, their skulls particularly in the ear region, which is surrounded by a bony wall strongly resemble those of living whales and are unlike those of any other mammal. Its prominent dorsal fin has a strong curve. 2) Fill in the column on the table labelled ‘Lifespan to the nearest decade’ by rounding the numbers to the nearest 10. Jefferson, T.A., M.A. 1987. It is the second largest known animal living today. It is still unclear how many different stocks of fin whales are in the north Pacific and if the fin whales found in BC are more closely associated with those found in Alaska, or those in the California/Washington/Oregon range. Like all whales, fin whales are mammals and give live birth to very large calves (21 feet/6.5 m). Common Name: Killer whale. Academic Press, London. Gestation lasts about 11 months, so fin whale females usually give birth every second year. Fin Whale on The IUCN Red List site -, http://www.iucnredlist.org/details/2478/0. Mating occurs in temperate, low-latitude seas during the winter, followed by an 11- to 12-month gestation period. The fin whale, Balaenoptera physalus. Fin whales are often solitary but are sometimes found in pairs or small groups of 6-10 individuals. The fin whale was second to the blue whale in commercial importance because of its size and wide ranging distribution. Although rare i… Fin whales are a cosmopolitan species, found throughout the world’s oceans in coastal and pelagic waters. Males are sexually mature at 6 - 10 years old. Humpback whale. Newborn calves are about 18 feet long, and weigh 4,000 to 6,000 pounds. Bryde's whale. Trites. pp 47-50. Blue whales can be found in all of our planet’s oceans, except the Arctic, usually swimming alone or … You can see whales in all oceans of the world, in waters ranging from tropical to polar. In Canada there is both an Atlantic and Pacific population of fin whale. 2006. (REUTERS/Stephane Mahe ) … Fill in this number in the table above. MORE IN WHALE CATEGORY. In 1984 we helped to convince the world to stop commercial whaling. A calf is precocial at birth, and is able to swim as soon as it is born. In the north Pacific 70% of their diet was found to be made of euphasiids, while another 25% were copepods. Fin Whale Reproduction, Babies, and Lifespan. The Fin whale is the second largest animal in the world, the blue whale being the largest. Fin whales are also said as "the greyhound of the sea" because of his great speed in pursuit and slender build. Minke whales live 40 to 50 years. Fin whales communicate with loud low-pitched sounds. The pleats enable the mouth cavity during feeding to engulf water, Fin whales being filter feeders, with 350 to 400 baleen plates that they use to catch very small up to medium-sized life that is suspended in the sea. Webber, and R. L Pitman. Fin whales can dive as deep as 230 meters and stay submerged for around 15 minutes. Fin whales are one of the most sociable of whale species, often congregating in family groups of 6 to 10 members. Predictions of critical habitat for five whale species in the waters of coastal British Columbia. The B.C. Both sexes are estimated to reach sexual maturity between 5-15 years of age and females appear to have a calf every 2-3 years. Vancouver: Fisheries and Oceans Canada: vii + 53 [PDF], Brodie, P. F. 1993. Fin-backed whale, Finner, Common rorqual, Herring whale, Razorback, Finback, Finback whale. Individuals continue to be at risk from ship strikes and entanglement in fishing gear. Fin Whale Conservation Status and Threats. Aguilar, A. and C.H. There are no estimates of current fin whale abundance for the southern hemisphere or for Australian waters. The Fin Whale is a species of Rorquals from the Balaenoptera genus. Marine Fisheries Review 46(4): 20-24. Catch rates from coastal whaling stations declined precipitously off British Columbia in the 1960s. The young will consume milk that the mother’s body produces for approximately the first 8 months of life. Cetacean Sightings Network is partially funded by the Government of Canada. Aguilar, A. Fin whales feed primarily on small invertebrates, schooling fish and squids. 200-Year-Old Whale May Hold Clues to Long Life Whales that live for two centuries are providing researchers with clues on how to extend the average human lifespan… and A.W. What’s life like for a fin whale? Fin whales mainly eat plankton-sized animals including fish, crustaceans, and squid. Although some aspects of whale mating behavior are still poorly understood, fin whales appear to form pairs during breeding season. Ford, R.I. Perry, L. Spaven, M. Zacharias. Laist, D.W., A.R. Discover How Long Fin whale Lives. Fin whales are very long and slender. A whale has died after it became stranded on a Cornish beach despite rescuers desperate attempts to save the 'malnourished' titan's life. One whale that was killed in Antarctica was discovered to be around 111 years old. Recovery strategy for blue, fin, and sei whales (Balaenoptera musculus, B. physalus, and B. borealis) in Pacific Canadian waters. Separate populations may exist in the Northern and Southern Hemispheres, with this species being scarce around the warmer waters of the equator. Generally found alone or in pairs, fin whales are mostly solitary and are rarely found in groups. Gregr, E.J., J. Calambokidis, L. Convey, J.K.B. Ellis and A.W. 40 km/h. Fin whales live about 85-90 years. Due to their size they prefer to live in deeper, offshore water and do not generally come into shallower water or close to land. Males chase after females … 2002. Life history and reproduction. A fin whale is a filter feeder and hunts by swimming with its mouth open towards its prey, taking in large amounts of water as well as food. They are able to take in up to an incredible 70 tonnes of food-rich saltwater into their extended throat and then use their baleen to sieve out the food as they expel saltwater. They inhabit the polar and temperate zones of major and open seas as well as, less commonly, the tropical oceans. Patterns on its jaw are asymmetrical: white on the right and dark on the left side, with large numbers of grooves extending along the throat to its naval. Unlike other whales, fin whales are not too fond of the spotlight. They are also threatened by commercial whaling. 2001. LIFE SPAN: 80 years. In British Columbia, fin whales are seen in summer and winter months, most commonly in offshore waters, Hecate Strait and Queen Charlotte Sound. For unknown reasons, researchers suspect killer whale calf mortality within the first six months to be "very high". pp 435-438. Based on the severe depletion and lack of sufficient time for recovery, it is inferred that present population is below 50% of its level, 60-90 years ago. Marine Mammal Science 14(1): 82-98. Interestingly, hybridization between fin and blue whales is not uncommon. However, the dark coloration and the larger dorsal fin that is seen shortly after the blow distinguishes fin whales from blue whales, and the distinctive white coloration on the right lower jaw distinguishes from sei whales, which are also very rare in BC waters. TOP SPEED. Speed may play a factor as vessels travelling over 14 knots have a much higher likelihood of fatally hitting cetaceans. Fin whales are the most commonly struck whale world wide, though why this is the case is unclear. Sometimes they gather in groups of almost 250 individuals during migration periods or near feeding grounds. 2001. After 11 to 12 months of gestation, a pregnant female gives birth to a single calf in tropical and subtropical areas during midwinter. It is gray on the upper surface and white on the underside. Feeding occurs throughout the day at intervals of 8 to 10 minutes. 1998. These first whales, such as Pakicetus, were typical land animals. The calf is about 14 meters long when it is weaned, whereupon it travels to a polar feeding area with its mother, and learns there to feed independently of its mother. Fin whales appear to have a long lifespan between 50-100 years, with females growing slightly (5-10%) larger than males, though at a slower rate. Fin whales are the fastest amongst the cetaceans and have been seen to breach completely out of the water. Fin whales have a place at the top in the food chain and an important role as regards the marine environment's overall health, consuming vast amounts of plankton as well as other prey items. A female will give birth every 2 or 3 years. Family: Delphinidae. Males and females are very similar in appearance, with females slightly longer than males. Their baleen plates are gray to bluish in color, with white fringes. The majority of whale meat is bought on the Japanese market. A mother nurses her baby for 6 to 8 months. Fin whale. Mizroch, S.A., D.W. Rice, and J.M Breiwick. 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