The body of a live-aboard boater with a history of health problems was found on a small boat Sunday near the Mariner's Club resort and marina in Key Largo.

State wildlife officers received a call about 7:15 p.m. reporting an unconscious man in a skiff along the mangrove shoreline on the Atlantic side of Key Largo around Mile Marker 98. Officers found Jerry W. Polston, 48, slumped over the side of the skiff, with his head and shoulders in the water, said Florida Fish and Wildlife Conservation Commission spokesman Bobby Dube. Polston regularly used the skiff, propelled by oars, to row to and from his sailboat anchored nearby, Dube said.

Polston has a history of medical problems, including seizures, but investigators are awaiting an autopsy report from the Monroe County medical examiner before commenting further on the cause of death, Dube said.

Polston reportedly was seen the previous day moving about on his sailboat with his dog.