The Coast Guard Loran Station here will hold a Change of Command Ceremony at 9 a.m. Tuesday. Senior Chief Robert A. Merick will relieve Chief Richard J. Isabelle as Commanding Officer of the unit during the ceremony. Isabelle, of Springfield, Mass., will serve as executive officer of Loran Station Port Clarence. Isabelle’s previous duty stations include Loran Station Marcus Island, Japan, and the Coast Guard Cutter Tahoma in New Bedford, Mass. He graduated from Springfield Technical Community College with an associate’s degree in Electronics Technology in 1985 followed by a degree from the Advanced Integrated Electronics School in Memphis, Tenn. Merick, of Sikeston, Mo., most recently served at the Kodiak Communications Station as the Electronics Technician in Charge.