Jeffreys Ledge is a “very productive area for marine life,” so it’s not surprising that it attracted an unusually large number of the critically endangered species, O’Brien said.

20% of world's right whale population gathered off New England in unusual sighting 00:42. BOSTON - About 75 North Atlantic right whales, representing about 20% of the critically endangered species ...

Jan. 15—Dozens of North Atlantic right whales are gathered off Jeffreys Ledge, east of Portsmouth, New Hampshire, triggering a slow zone for boaters. Surveyors at the New England Aquarium ...

Jeffreys Ledge is east of Portsmouth, New Hampshire. In a Friday evening announcement, Keliher urged fishermen to remove gear that is set deeper than 300 feet from the surrounding area.

As Grand Ledge sizzles in summer heat, Ledge Craft Lane faces a freezing future without a new boiler. See how this ...

The whales were spread out over 10 miles, with the majority feeding far below the surface, just off the western edge of Jeffreys Ledge, a raised underwater area and popular fishing spot along the ...

A group of about 75 endangered North Atlantic right whales was spotted off the western edge of Jeffreys Ledge. That's about 20 percent of the surviving population.

A aerial survey team from the New England Aquarium spotted the whales this week along a 10-mile stretch off the western edge of Jeffreys Ledge.

Dozens of North Atlantic right whales — more than 15% of the estimated global population — are gathered off Jeffreys Ledge, east of Portsmouth, New Hampshire, triggering a slow zone ...