A body believed to be that of a missing Long Island man was found Friday on the man’s skiff 12 miles off the coast of Yarmouth, Nova Scotia.

The Cumberland County Sheriff’s Office said Friday night that it was notified of the discovery by the Canadian Coast Guard, which was towing Dana Moy’s 17-foot skiff to land.

Moy, 31, was last seen Sunday, riding his bicycle on the Casco Bay Island. The sheriff’s department was notified Wednesday that he was missing, and searched the island and determined that his skiff, named Low Expectations, was missing from its normal mooring.

Moy left a note for his friends and family saying they wouldn’t find him alive, said Lt. Don Foss of the sheriff’s office. Although Foss said the note wasn’t explicitly a suicide note, “there were some innuendos … (that suicide) seemed to be what he was going to do.”

Foss said deputies had little to go on because Moy left his cellphone behind. Deputies might have been able to track where he was if he had taken it with him, Foss said.

The Maine Marine Patrol said Friday that its plane was searching for Moy, but the U.S. Coast Guard said it needed a more specific area to search before it could start looking for Moy. Boaters, fishermen and harbormasters along the coast were asked to keep an eye out for Moy’s boat.

Neighbors on Long Island said Moy was quiet and his mother died two years ago. They said he was self-employed as a lobsterman, and were shocked by the news that he might have wanted to harm himself.