First “song” recorded from rare, lovelorn, right whale off Alaska

Scientists say the crooning could be the mating call of one of the most elusive marine mammals

Published - June 20, 2019 09:37 pm IST - Alaska

A North Pacific right whale. Marine Mammal Commission

A North Pacific right whale. Marine Mammal Commission

For the first time, scientists have recorded singing by one of the rarest whales on Earth, and it just might be looking for a date.

The crooning comes from a possibly lovelorn North Pacific right whale and its song was documented by researchers in the Bering Sea off Alaska’s coast, and announced on Wednesday by the National Oceanic and Atmospheric Administration.

The song may not be a greatest hit, but is classified by marine biologists as an underwater call using a distinct pattern of sounds. And it is the scientists’ best guess that this serenade of the seas is a mating call from a lonely aquatic mammal.

Scientists surveying endangered marine mammal populations first heard the tune in 2010 but could not be sure what kind of whale was singing, said Jessica Crance, of NOAA’s Alaska Fisheries Science Center.

At the time, the researchers were travelling in thick fog and could not see the animal, she said. But scientists figured out it was indeed a right whale after analysis of a lot of collected acoustical data, followed by a specific sighting during a 2017 marine-mammal research cruise, Ms. Crance said.

“That year, we saw the whale that was singing.”

The right whale’s carolling is described in a study published in the current issue of the Journal of the Acoustical Society of America , and is the first confirmed song from any right whale population.

This history-making discovery sheds light on the behaviour of one of the planets most elusive marine animals, NOAA said.

While this is the first known tune, right whales are not mute. They are known to be chatty by making gunshot sounds. What made this newly-recorded noise a song was its repeated pattern, timing in between gunshots and the number of gunshots, Ms. Crance said.

The singing whale spotted in 2017 was a male, and is in the tiny population where dates are hard to find. There are only about 30 whales in this population and males outnumber females by a 2-to-1 or 3-to-1 ratio, Ms. Crance said.

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