For the first time, Federal scientists with the National Oceanic and Atmospheric Administration have recorded singing by a rare right whale.
FILE - In this Aug. 6, 2017, file photo, provided by NOAA Fisheries a North Pacific right whale swims in the Bering Sea west of Bristol Bay. Federal scientists with the National Oceanic and Atmospheric Administration have recorded singing by a rare right whale for the first time. Researchers used moored acoustic recorders to capture patterned calls made by male North Pacific right whales. Researchers detected four distinct songs over eight years at five locations in the southeast Bering Sea.
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. 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.
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.
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