82°F
weather icon Clear

Scientists record singing by rare right whale for first time

ANCHORAGE, Alaska — Federal marine biologists have recorded singing by one of the rarest whales on the planet.

National Oceanic and Atmospheric Administration researchers used moored acoustic recorders to capture repeated patterns of calls made by male North Pacific right whales, the first time any right whale songs in any population have been documented, said NOAA Fisheries marine biologist Jessica Crance on Wednesday from Seattle. She spoke to southern right whale and North Atlantic right whale experts to confirm that singing had not previously been documented.

The number of eastern North Pacific right whales is estimated at just 30 animals from a population largely wiped out by whalers. The slow-moving whales remained buoyant after death and were targeted by whalers.

Researchers detected four distinct songs over eight years at five locations in the Bering Sea off Alaska’s southwest coast. Weird patterns of sound were first noted during a summer field survey in 2010, Crance said.

“We thought it might be a right whale, but we didn’t get visual confirmation,” she said.

Humpback, bowhead and other whales are known for their songs.

NOAA Fisheries researchers reviewed long-term data from acoustic recorders and noted repeating patterns of the sound patterns. However, it took until a voyage in 2017 to coordinate a right whale song with a sighting of the male making it, Crance said.

Right whales make a variety of sounds. A predominant call sounds like a gunshot. They also make upcalls, downcalls, moans, screams and warbles.

To be a song, the sounds have to contain rhythmically patterned series of units produced in a consistent manner to form clearly recognizable patterns, Crance wrote in a paper for the Journal of the Acoustical Society of America.

“It’s a series of sounds that are reproduced in a stereotyped, regular manner that are repeated over and over,” she said.

The remote Bering Sea makes learning about right whales a challenge. Their range remains unknown.

No one knows why right whales sing, she said, and it almost raises more questions than it answers.

“It could be that there are so few of them left, they feel the need to call more frequently or sing,” she said.

A singing male may by trying to attract a female, she said.

“With only 30 animals, finding a mate must be difficult,” Crance said.

Don't miss the big stories. Like us on Facebook.
THE LATEST
Man shouting ‘you die’ kills nearly 30 at Japan anime studio

A Japanese fire official says nearly 30 people are presumed dead and more could be missing after they were trapped by fire at a popular animation production studio in Kyoto.

Prosecutors drop groping case against Kevin Spacey

Prosecutors dropped a case Wednesday accusing Kevin Spacey of groping a young man at a resort island bar in 2016, more than a week after the accuser refused to testify about a missing cellphone the defense says contains information that supports the actor’s claims of innocence.

Cat with firecrackers strapped to paw has leg amputated

An animal rescue group in Pittsburgh says someone strapped firecrackers to a cat’s front left paw with rubber bands and set them off, causing such severe injuries the animal’s leg had to be amputated.