Northern bottlenose whale H. By , 50 ships were hunting bowheads in each area. Possibly, vagrants from this population occasionally reach into Asian nations such as off Japan or Korean Peninsula although this record might or might not be of a right whale [60]. The gestation period is 13—14 months with females producing a calf once every three to four years. Balaena mysticetus has a remarkable lifespan. The Wisest Whale of the Sea. Pygmy sperm whale K.
Uploader: | Arashishura |
Date Added: | 13 May 2004 |
File Size: | 46.7 Mb |
Operating Systems: | Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X |
Downloads: | 25290 |
Price: | Free* [*Free Regsitration Required] |
The group migrates northward in the spring, following openings in the ice, into the Chukchi and Beaufort seas. Whale populations plummeted as a result of a huge expansion in the whaling industry from the s to the early s Shelden and Rugh Bowhead whales are comparable in size to the three species of right whales. The earlier fossil record shows no related cetacean after Morenocetusfound in a South American deposit dating back 23 million years. Bowhead whales play an important role as predators of plankton in the arctic ocean.
In a study init was found that one-third of the animals of the Davis Strait stock showed scars from killer whale attacks Shelden and Rugh Cavorting whale in northwestern part of Sea of Okhotsk [56].
Bowhead whale
They are also known to take shelter under ice drifts. The calf is fed with its mother's milk until it is weaned, which occurs between nine and fifteen months after birth.
Pacific Mysticeuts body of water between the southern ocean above 60 degrees south latitudeAustralia, Asia, and the western hemisphere. Russian Arctic National Park.
Bowhead whale - Wikipedia
Historical survey of the European whaling industry. CS1 Latin-language sources la CS1 maint: Retrieved 13 September Calves grow approximately 1. Historical range could have been broader and more southern than that of currently regarded as bowheads had been abundant among Labrador and Newfoundland Strait of Belle Isle mysitcetus, and northern Gulf of St. In other projects Wikimedia Commons Wikispecies. In order to survive under the ice cap, B.
The bowhead whale is the only baleen whale to spend its entire life in the Arctic and sub-Arctic waters. Nicklen, ; Nowak, This lower jaw is usually marked with white spots, contrasting with the rest of the whale's black body Nowak Map of the bowhead whale ranges centered over the North Pole.
Shelden and Rugh, Key Behaviors natatorial motile mysticetud social Communication and Perception Perception Channels tactile chemical Food Habits Balaena mysticetus is a baleen whale, which means that they filter water through baleen plates, feeding on the organisms caught in the plates and pushing the rest of the water out. Bowhead whales Balaena mysticetus sighting in the Franz Josef Land area. Mysticdtus Plata dolphin P.
It takes twenty years for a Bowhead whale calf myshicetus reach sexual maturity.
Alaska Eskimo Whaling Commission. Wikispecies has information related to Balaena mysticetus. This also prevents buckling or breakage of the plates from the pressure of the water passing through them as the whale advances.
ADW: Balaena mysticetus: INFORMATION
References [ ] Gomes et al. Genetic studies suggest Okhotsk population share common ancestry with whales in Bering-Chukchi-Beaufort Seas, and repeated mixings had occurred between whales in two seas. Archived from the original on 20 January Balaena mysticetus bowhead Facebook.
However, if climate change substantially shrinks sea ice, these whales could be threatened by increased shipping traffic.
Long-beaked common dolphin D. Average number of offspring 1 Average number of offspring 1 AnAge Range gestation period 12 to 16 months Average gestation period months Range weaning age 9 to 15 months Average age at sexual or reproductive maturity female 20 years Average age at sexual or reproductive maturity female Sex:
No comments:
Post a Comment