ALAMEDA, Calif. - Capt. Thomas E. Crabbs shakes hands with Capt. Matthew J. Gimple during a change of command ceremony presided over by Vice Adm. Manson K. Brown, commander, Pacific Area, aboard the U.S. Coast Guard Cutter Boutwell at Coast Guard Island in Alameda, Thursday, May 12, 2011. Under Gimple's command the Boutwell will shift its homeport from Alameda to San Diego, Calif., Sunday, May 15, 2011. Crabbs will go on to assume command of the U.S. Coast Guard Cutter Bertholf homeported in Alameda. U.S. Coast Guard photo by Petty Officer 3rd Class Caleb Critchfield.