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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