A fisherman made a gruesome find Monday morning when he spotted a corpse floating in a lake at a Queens park.

Cops pulled the bloated, fully clothed body of a man believed to be in his 50s from Oakland Lake after receiving an 8:15 a.m. call from the fisherman who had been angling on the lake.

Emergency workers reported no obvious signs of trauma to the man’s body, and cops weren’t sure how long it may have been in the water.

The scenic lake, which is stocked with catfish, sunfish and carp is in a secluded area of Alley Pond Park, between Bayside and Oakland Gardens.

Cops have not yet released the identity of the victim, who was described as an Asian man who was wearing dark pants and a light-colored shirt.