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Majestic giants: Getting to know the North Atlantic right whale

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3 m
Oct 28, 2020
Categories
Earth & Environment
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Fisheries
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Article
Profile picture for user Sylvie Jones
By: Sylvie Jones
Ingenium - Canada's Museums of Science and Innovation
Fisheries and Oceans Canada
The impressive, black tail of a North Atlantic right whale can be seen sticking out of the ocean.
Photo Credit
Department of Fisheries and Oceans

The North Atlantic right whale (Eubalaena glacialis) has a large head that takes up nearly a quarter of the length of its body. Right whales, which can grow up to 18 metres in length, can be recognized by: 

  • wide tail flukes and narrow tailstock, large paddle-shaped flippers and no fin on its back (no dorsal fin),
  • black skin, with rough patches of skin that appear white called callosities that occur on their head, chin, and sometimes on the edge of their lower lips.  Some right whales also have these white patches on the throat or belly.  Each whale’s callosity pattern is unique, allowing scientists to recognize individual whales.
An artist’s rendering of a North Atlantic right whale, with the figure of a scuba diver underneath it to indicate scale. The major features of the whale are described in black text around the image.
Photo Credit
Jeff C. Domm | Department of Fisheries and Oceans

In a healthy ecosystem, and not disturbed, right whales can live at least 75 years. They are curious and acrobatic, often breaching and smacking the surface with their flippers and flukes (tails). Right whales generally dive for about 20 minutes at a time.  

The distribution of North Atlantic right whales in Canadian waters has shifted since 2010, and they are using previously predictable habitat areas, such as the Bay of Fundy, less frequently (Davis et al. 2017). Significant aggregations of right whales have been observed in the southern Gulf of St. Lawrence (DFO 2019).

In the next article in this four-part series, learn how a whale named Glacier provided a case study in the decline of the North Atlantic right whale population.

Tags
Whales, Species at risk, North Atlantic right whale, Department of Fisheries and Oceans, oceans, science, Gulf of St. Lawrence
Author(s)
Profile picture for user Sylvie Jones
Sylvie Jones

Sylvie works in education at the Canada Science and Technology Museum. She has many years of experience in informal science education, and is passionate about making science and technology engaging and accessible to all. With a background in mechanical engineering, Sylvie strongly believes in the importance of encouraging underrepresented groups to pursue opportunities in Science, Technology, Engineering, Arts, and Math (STEAM).

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Fisheries and Oceans Canada
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Our mission is to ensure Canada's aquatic ecosystems and fisheries are sustainable and economically successful. We also keep Canadian waters safe and secure.
 

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More Stories by

Profile picture for user Sylvie Jones
Sylvie Jones
Ingenium - Canada's Museums of Science and Innovation
A North Atlantic right whale is seen swimming alongside her calf in green water

Protecting the North Atlantic right whale through new regulations

An aerial view shows a massive North Atlantic right whale in the ocean below.  On his back there is a distinctive scar that resembles a melting glacier.

Glacier the whale: A case study in the decline of the North Atlantic right whale population

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