North Atlantic Right Whale Population Shows Signs of Gradual Growth, Scientists Report

The endangered North Atlantic right whale has shown a slight but hopeful population increase, rising from 376 to an estimated 384 whales, according to a new report by the North Atlantic Right Whale Consortium. This represents a 7% growth since 2020, offering cautious optimism for a species that has teetered on the brink of extinction for decades.

The increase is attributed in part to stronger conservation efforts, including new Canadian management policies in the Gulf of St. Lawrence, where the whales have increasingly migrated. These protections, along with tighter regulations on ship traffic and fishing gear in U.S. and Canadian waters, appear to be contributing to reduced injuries and mortalities.

Notably, no whale deaths were detected over the past year—marking a rare milestone—and scientists observed 11 new calves, including several born to first-time mothers. While the number of calves remains lower than ideal, researchers are encouraged by the signs of improved reproduction and shorter calving intervals among some adult females.

Still, experts warn that the species remains under serious threat. Entanglement in fishing gear, ship strikes, and climate-related changes in ocean conditions continue to endanger the whales, particularly as they move outside traditional protected zones in search of food.

Conservationists are calling for continued—and strengthened—protections. Gib Brogan of Oceana warned that political efforts to weaken the Marine Mammal Protection Act and NOAA’s science-based safeguards could jeopardize recent gains.

“The right whale’s future depends on consistent protection and science-backed policy,” said Hamilton, a senior scientist at the New England Aquarium. “This slight increase is promising, but far from a guarantee of long-term recovery.”

The North Atlantic right whale remains one of the most endangered large whale species on Earth.