ROCKLAND — The Department of Marine Resources will hold four informational hearings on issues facing the Maine sea urchin industry, all at 7 p.m.

Meetings will be held Monday, July 23, in the Hancock Room of the Ellsworth Holiday Inn; July 24, in Room 102 of the Science Building at the University of Maine at Machias; July 25, at the Ramada Inn on Congress Street in Portland; and July 26, in the Tower Room of the Rockland Recreational Center.