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Jan 15, 2017

The Northern Minke Whale

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The Northern Minke Whale, or Common Minke Whale (Balaenoptera acutorostrata) is a species of minke whale within the suborder of baleen whales. It is the smallest member of the rorquals and the second smallest species of baleen whale. Although first ignored by whalers due to its small size and low oil yield, it began to be exploited by various countries beginning in the early 20th century. As other species declined larger numbers of common minke whales were caught, largely for their meat. It is now one of the primary targets of the whaling industry.
This species is known in the fossil record from the Pliocene period to the Quaternary period (age range: 3.6 million years ago to present day).
There are estimated to be over 180,000 common minke whales in the North Atlantic.
There have been numerous recorded instances of killer whales preying on or attacking common minke whales. They are normally able to outpace pursuing killer whales in open water or are trapped in a bay, where they are rammed and drowned or strand and die. Chases usually last about 30 minutes to an hour and can reach speeds of up 30 km/h (19 mph), often with both species porpoising out of the water in low-angle leaps. Typically two to four killer whales and a lone minke are involved. If the pursuing killer whales do catch up to the minke it does not defend itself, which is typical of the fast-moving members of its genus. Killer whales typically only eat the tongue, skin, and some of the blubber of the minkes they kill.
Due to their relative abundance common minke whales are often the focus of whale-watching cruises. Common minke whales are frequently inquisitive and will indulge in "human-watching". In contrast to the spectacularly acrobatic humpback whale, minkes do not raise their fluke out of the water when diving and are less likely to breach. Minkes can stay submerged for as long as twenty minutes.
The common minke whale is considered "Least Concern" on the IUCN red list. In addition, the species is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region (Pacific Cetaceans MOU) and the Agreement on the Conservation of Cetaceans in the Black Sea Mediterranean Sea and Contiguous Atlantic Area (ACCOBAMS).

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