PORTSMOUTH, Va. — The Coast Guard and Virginia Marine Resources Commission are searching for an 80-year-old man Sunday in the water near Winter Harbor Haven. The man is thought to have entered the water when his fishing vessel capsized near Winter Harbor while he was gill net fishing Saturday.A good Samaritan discovered the man’s 15-foot boat capsized Saturday about 200-yards off the beach east of Winter Harbor and notified Mathews County dispatchers, who then notified the Coast Guard and VMRC at approximately 8:20 p.m. A Coast Guard MH-65 Dolphin helicopter crew launched from Air Station Atlantic City, and a 25-foot Response Boat-Small (RBS) crew launched from Coast Guard Station Milford Haven. Both Coast Guard crews, along with VMRC vessel and shore crews, searched Saturday into Sunday morning.A Coast Guard MH-60 Jayhawk helicopter crew from Air Station Elizabeth City and a 25-foot RBS crew from Station Milford Haven continue the search Sunday, along with VMRC vessel and shoreline search crews.The man’s family said he left to go gill net fishing Saturday by himself at approximately 4 p.m. He is believed to have been fishing alone at the time his vessel capsized.