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The status of Antarctic blue whales is assessed using a Bayesian logistic population model fitted to three long-term datasets. Due to unsustainable levels of whaling from 1926 to 1971, except during World Was II, the population declined from 256,000 (95% credibility interval 235,000–307,000) to a low of 395 (235–804), which was . 5% (. 0–0. 28%) of pre-exploitation levels. The low point was reached in 1971 or 1972 after which the introduction of international observers halted catches of Antarctic blue whales by Soviet fleets
Blue whales are light grey/blue to dark grey while at the surface, but seen underwater they are a luminous aqua blue. More about blue whales. Southern Right Whale Balaena glacialis. Average adult length 20m. Average adult mass unknown, maximum of 96 tonnes. The name was given by the early whalers because they were the "right" whales to kill. They have large amounts of oil, blubber and baleen or whalebone, they are slow swimming (easy to catch), are often found close to shore and float when killed
Antarctic Whales: Whales In Antarctica. May 3, 2017 March 3, 2016 by admin. List of Antarctic Whales, with pictures, facts and information. This article is part of our Antarctica series. You can discover more incredible Antarctic animals here: Antarctic Animals List. Antarctic Whales: Introduction. Antarctic ice cliffs towering over the Southern Ocean. Whales are marine mammals The Blue Whale is the largest animal ever to have lived on earth. This huge creature reaches lengths of over 30 m (100 f., and weighs up to 160 tons. It is widespread, and found in many parts of the world. A blue whale subspecies, the Antarctic Blue Whale ( Balaenoptera musculus intermedia ) is found in Antarctic waters. Conservation status: Endangered. Dwarf Minke Whale (Balaenoptera acutorostrata).
Blue Whales Are the Largest Creatures in Existence - Blue whales can become as large as 200 tons, and each calf has the ability to put on up to 100 kg (200 pounds) per day. The average length of a Blue whale ranges from 25 to 2. meters. Fin Whales Have an Amazing Decibel Range - Fin whales are capable of producing sounds within a range of 75-80dB at approximately 100 Hz. Before propellers became commonplace in the ocean, these sounds could easily travel more than 100km.