Endangered whale's decline slows, but population falls again

PORTLAND, Maine (AP) — The decline of an endangered species of whale slowed last year, as it lost about 2% of its population, but scientists warn the animal still faces existential threats and is losing breeding females too fast.

The North Atlantic right whale's population was more than 480 in 2010 and fell by more than 25% over the following decade. The North Atlantic Right Whale Consortium, a group of scientists, government officials and industry members, said Monday that the population fell to an estimated 340 last year.

That is a decline of eight animals from the previous year, when the population was initially thought to be even fewer. The whales are vulnerable to ship collisions and entanglement in commercial fishing gear, and they have suffered from poor reproduction and high mortality in recent years.

“The reality is we are still seeing unsustainable levels of human impacts on the species,” said Heather Pettis, research scientist in the New England Aquarium’s Anderson Cabot Center for Ocean Life and executive administrator of the North Atlantic Right Whale Consortium. “We're still injuring these animals to a point where it's not just about survival. It's about health, it's about reproduction.”

The right whales live off the East Coast and migrate every year from calving grounds off Georgia and Florida to feeding grounds off New England and Canada. They were once abundant but were decimated during the commercial whaling era, when they were hunted for their oil and meat.

The whales have been listed as endangered under the Endangered Species Act more than 50 years but have been slow to recover. The population was even lower in 1990, when it was 264, Pettis said. One of the biggest challenges facing the right whales today is that the number of female whales that...